Manuale d’uso / di manutenzione del prodotto 2274 del fabbricante IBM
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Ha rdw are Mai n te na nce Serv ice for Se rv ice Le vel A Machine Typ e 2274.
Firs t Ed iti on (May , 2 000 ) The foll owing paragr a ph does not apply to a ny state or country whe r e such provis ions a re i n co ns i stent with local law : INTER N ATIONA L B USINESS MACHINES .
iii Contents Conte nts . . ........ ........ ........ ........ ........ ........ ............ iii Noti c es ... ........ ........ ........ ........ ........ ........ ............. vii Safety I n forma t ion ...... .. .. .. .... .. .. .. .. .. .... .. .
iv Electri cal input ... .... .. .... .... .... .... .... .. .... ............ 28 Operat ing Require ments ... ...... ...... ........ ...... ......... 29 Check Pro cedur es ... ........ ...... ...... ........ .............. 31 Introduct ion ...... ...
v Indicator LED and Cable .. .. .. .. .. .. .. .. .. .. .. ....... 103 System Board .... .. .... .. .. .. .. .. .. .. .. .... .. .. .. .......... 104 Parts/ Te st P oi nt L oca tions .. .. .... .... .. .... .. .......... 107 Introduct ion ...... .....
vi Appen d ix A. FR U Number List .... ........ ............ 141 Appen d ix B. Onli ne Support ...... ........ ............. 143 Index ...... ........ .
Notic es vii Notices Referen ces in t hi s publicatio n to I BM products, program s, or s ervic e s do not imply t ha t IBM intends to m ake t hes e a vai la bl e i n all c ount r ies in w hic h IB opera tes.
viii Safe ty In for matio n DANGER T o avoi d a shoc k hazar d, do n ot connect or disc onnec t any cables o r perf o rm ins tallation, maintenan ce, or re configuration o f this product during an el ec tric al stor m. T o avoid shock h azard: • The pow e r cord m ust be c onn ected to a properly wire d and earth ed r eceptacle.
N ot ice s ix batter y contains li thium and ca n explode if not properly used, handled, or disposed of. Do not: • Th ro w o r im me rs e in to wate r • Heat to mo re th an 100 ° C (212 ° F) • Repair or dis assemble Dispose t he batt ery as required b y local o rdinances or re g ulations.
x PE RIGO: Para ev itar ch oques el é tricos, n ã o conecte ou desconecte nen h um cabo , nem efet ue i nstala çã o, manuten çã o ou r econfi gura çã o deste produto durante um a tempesta d e com raios.
No ti ce s xi CUIDADO: Ao subst itui r a bateria, u tili ze apenas o N ú mero de Pe ç a IBM 33F8354 ou um tipo de ba ter ia equivalente recome n dado pelo fa brica nte. Se seu sistema possu ir u m m ó dulo c om u ma bate ria de l í tio, subs titu a-o a pe nas pelo mesm o ti po de m ó dulo, prod uzid o p elo mesm o fabr icante .
x ii dir eta mente co m instrumen tos ó t icos, e evi te expos i çã o diret a a o raio. CUIDADO: A corre nte el é trica provenie nt e d e cabos de alime nta çã o, de telefo ne e de comunica çã o é perigo sa.
Noti ces xi ii.
xi v.
Noti ces xv.
xvi.
Notices xvii PE RIGO: Pour é vi ter to ut risq ue d e choc é lectrique, ne mani pulez a ucu n c â ble et n 'ef fec t u ez aucune op é ration d'in stallatio n, d'ent retien ou de reconf igur at i on de ce produit au cours d'un orage.
xvii i AT T E N T I O N : Remplac ez la pil e usag é e par u ne pile de r é f é rence ide ntiq ue exclusiv em ent - voir la r é f é rence IBM - ou par un e pil e é quiv a lent e r eco mma nd é e par le fabr ican t.
Noti ces xi x l'ob server à l'a ide d'i nstrumen ts op t iques. É vitez une expos itio n di recte au rayon. AT T E N T I O N : Le co ur a nt é lectri qu e ci rcu la n t dans le s c â bles de comm u nicat ion et les co rdon s t é l é ph oniques et d'al imentati o n p eut ê t re da ngereux.
xx VO RSICH T : Aus Si che r he it sgr ü n de n be i Ge w itt e r an diese Ger ä t ke ine Kabel anschl ie ß en od er l ö sen. Ferner keine Ins tallation s- , Wart ungs- oder Rekon figura tions arbeit en durc hf ü hren.
Noti ces x xi ACHT UNG: Eine v erbra u cht e Ba tterie nur d ur ch e in e Batterie mit de r IBM T ei le numm e r 33 F83 54 o d e r d urch eine vo Herstell er e mp f ohl ene Ba tter ie erset zen. Wenn Ihr Sys tem e in Modul m i t ei ne r Lith ium-Batt erie en th ä lt, ersetze n Sie es i mmer mit dem selben Modultyp vom selb en Herste ll er.
xxii Instrum enten betra chten und den St rahlungsbereich meiden. ACHT UNG: An Ne tz -, T elefon- und Datenl eitungen k ö nnen gef ä h rli che elektr i sche Spann ungen anliegen. Um eine Ge f ä hrdung des Benu tz ers oder Besch ä digung des G er ä ts zu verme ide n, ist der S erver auszusc halten.
Noti ces xxiii PERI COLO: Per evitar e il pe ricol o di sco sse elet triche du rante i temporali, non colle gare o sc ol leg a r e cavi, non effettuare l' installa zione, la m an utenzione o la riconfigu r az ion e di q uesto prodotto.
xxiv A TTENZIONE: Quando s i so stituisce la batteri a, util izzare s o lo una batter ia IBM o batterie dell o st esso tipo o di tipo equivalent e co nsig li a te d al p roduttore.
Notice s x xv A TTENZIONE: Quando è in st all ata un 'u ni t à CD-ROM , notare quanto segue: L'util izz o di co n troll i, regol azio ni o l ' esecu zione di procedu re non descrit ti n e l presente manuale possono pr ovoca re l' espos izi one a radiazioni pe ricol ose.
xxvi.
Noti ces x xvi i.
xxvi ii PELIGRO: Para ev itar u na posi ble descar ga el é ctrica, no conecte ni d esc o nect e los cabl es ni lleve a cabo ning una op eraci ó n de instalac i ó n , de mantenimiento o de reco nfigu rac i ó n de este p roducto durante una torm ent a el é ctri ca.
Noti ces xxix IMP OR T AN T: Al c amb ia r la ba ter í a, u t il ic e ú nicamente l a bater í a IBM N ú mero de pieza 33 F8354 o un tipo de bater í a equi v alent e rec omendado por el fabrica nte.
xxx Cuand o la un idad est á abierta se generan emisiones de r ayos l á ser . No dirija la m irada al ha z, no lo obser ve direc tamente c on instru m ento s ó p ticos y evit e la expos ici ó n directa.
No ti ce s xx x i La ser C omp lian ce State ment The CD-RO M drive in t he comput er is a laser product. T h e CD-ROM d ri ve ' s classification label (samp le sh own below) is lo cated on the drive.
xxxi i T rad emarks The fo ll owi n g are trade mar ks o f the IBM Corporation in th e United S t ate s or other co un tries or both: AT HelpCen ter IBM Opera ting S ystem /2 OS/2 Person al System/2 PS/1 PS/2 Intel, Pe ntium, MMX, EtherE xpress, and LANDesk are t rade mar ks or reg iste red trad em a rks of Intel Co rpor ati on.
Notices xxxi i i Pref ace This manual cont a in s s ervice i nformatio n for the 2274 Service L evel A (S L-A) mode l of t h e IB M Personal Comp uter , wo rldwi d e. Th is m anual is i ntended to be used as a s tan d-alone d o cu men t t o service machine type 2274 pro ducts .
xxxi v.
General Informa tion 1 Gene ral I nform ation Introduct ion ...... ........ ........ ........ ........ ........ .............. 2 Product O verview .. .. ........ ........ ........ ........ ............... 3 Proce ssor ...... ........ ........ ........
2 IBM D esk top System HMM Intr oducti on This chapt er gives a general overv iew of th e Personal Comp u ter T y pe 2274, des cribe s the standard and optiona l fea tures, an d details its functional and en vironme ntal spe cif icatio ns.
General Informa tion 3 Produc t Overview Perso n al Computer Type 2274 has thre e PCI slots and supp orts the A MD K7 D uron pro c ess or family with Soc k et A processo r pack age type.
4 IBM D esk top System HMM Exte rnal Port • 2x/4 x A GP v id e o card (15-p in VGA connector) • Multi- Mode Parallel port (25-pin D-t y pe c onnector) • Seri al port (9-pin D-su b connecto r).
General Informa tion 5 DVD-ROM Drive • 5.25-in . hi g h-p erforma n ce, 8 X /40X DVD- ROM IDE/ A T dr ive . • Read data a n d audi o play fr om standard, mini DVD- R OM and a u dio compact disc s ( audio CDs). DVD m e dia suppor ted on D VD models.
6 IBM D esk top System HMM Pow er Su p ply • PC-98 com pa tib le 1 45W A TX p o w er s upply • Swit c hable hi gh/lo w volta ge s election Inter n al Cabl ing • T wo 40-pin r i b bo n cables f o r hard dis k drives and CD/ D VD-ROM dri ve. • One 34-pin r i bb on c a ble for AT dis k ette drive.
General Informa tion 7 Key board • 104-ke y , r ubber dom e Rapid Access ™ II k eyboard with 1.8 -m (5 . 8- ft . ) cable Mouse • 4 Button PS /2 Sleek or ScrollPo int ™ II mouse with 1.
8 IBM D esk top System HMM Ha rdw ar e Int er fac es The foll o wing peripheral in terfac es for adapters, options, an d dri v es a re sup po r t e d in th e system unit. Item Inter face Expa ns ion sl ot fo r I /O adap t er ca r ds T hree P CI ( Pe riphe ral Co mpon ent I nter con nect ) v 2.
General Informa tion 9 Para llel port Supp orts S PP (IB M PC/X T, PC/A T , PS/2) compatible , EPP ( IEEE 1284 comp liance), E CP (IEEE 1284 comp liance) inte rface. IEE E 1284 compliant Gam e po rt Gam e po rt inte rfa ce for joy sti ck. It a lso su ppor ts MI DI .
10 IBM D eskto p Sys tem HMM CMOS Reset This sy s tem d oes not deny a ccess to Config uration/ Setup Utili t y, i f A dmi ni st r ativ e P a s swo rd is n ot set. Execut e “ Load B IOS D efault S ettings ” in BIOS Config ura tion/ Set up Ut ility to cle a r the corrupted CMO S d ata .
General Informatio n 11 Power- On Passwor d A powe r- on passw or d den ies a cc ess to t he system by an unau tho rized us e r when the s ystem i s powered on. When a powe r-on pass w ord is acti ve, the passw ord pr ompt appe ars on the s cre en each time the system is pow ered o n.
12 IBM D eskto p Sys tem HMM Fla sh (B I OS) U p da te P roc ed ure NOTE: The f lash upda te procedure does not change the model number and s eri al number info rmation i n BIOS. 1. Pre pare a b ootable DOS disket te with AWDFLAS H. EXE, and one XX XXXXX.
General Informa tion 13 BIOS -co ntaine d Mode l Numb er and Seri al N umber The mo del nu mbe r an d serial number i nfo rmation is stor ed in BI OS ROM and displ ayed in th e “ Product Data ” of Configuration/S etup Util ity main menu.
14 IBM D eskto p Sys tem HMM BIO S Co nfig urati on/Set up Util i ty The C o nfig urat i on /S et up Uti lit y lets you r eview and change important in fo r m a tion ab o u t the computer and it s h ardwa re.
General Informa tion 15 The fol low ing table lis ts sp ec ifi c keys on the keyboard that will he l p y o u move throug h the Configuration/ Setup Uti li ty Menus: Chan gi ng Pa ra me ter Setting s In th e Configuration/Se t up Util i ty M enus, the configur ation informa tion tha t y ou can change is enclos ed in brack ets like the se: [ ].
16 IBM D eskto p Sys tem HMM Save & Ex i t Settings After c h ang ing any p arame te r in t h e S etup Config ura ti on sett ing , ret urn to Configu ra tio n/Setup Utilit y main menu and sel e c t Sa ve & Exit Setup to save all the settings y ou hav e changed .
General Informa tion 17 Exi tin g Wit hou t S avi ng Press Esc to return to the Main Menu when you have f i nis he d vi e wi ng se tti n gs an d ma ki ng ch anges.
18 IBM D eskto p Sys tem HMM Se r i al P o rt Setu p Onboar d S erial Po rt 1 It c ome s with one 9-pin s er ial po rts. This parameter will be al lowed to set Auto , Disab led, or the base addres s such as 3F8 /I R Q4 , 2F8/IRQ3, 3E8/IRQ4, or 2E8/IRQ3 for serial port.
General Informa tion 19 USB Mo u s e Support This p ar am et e r enables or dis ables th e use of a USB keyboar d outsid e of Windows. T h e default is Disabl ed. I t is not configurab le if Onboar d USB is set to Di sabled. IDE D ri ve s S et up ID E Pref etch Mode The def a ult settin g is Enabled.
20 IBM D eskto p Sys tem HMM MPU-40 1 I/Q Address NOTE: Th e defa ult i s 33 0-333H Game P o r t (200-207H) NOTE: The de fau l t i s E n able d. Star tup Op tions From the C onfiguration/ S etup Ut ility main menu, select Sta rt Opt ions to v iew or change start-up configur at ion se ttings.
General Informa tion 21 Key boardles s Op eration When enab le d, th e BIO S iss u e s th e seek command to th e ke yb oar d to m o ve f ast e r duri ng P OST.
22 IBM D eskto p Sys tem HMM Passwo rd wi ndo w. 4. T ype a password c o ns isti n g of up to eight chara cters, then press Enter . 5. Retyp e the passw ord t hen press Ente r . 6. Pre ss Ent er a gain to co nfirm the setting of the passw ord. P r essing Esc aborts t he password settin g.
General Informa tion 23 and then press Enter . Th e message appears on the scr e en a s below: “ P A SSW ORD D IS AB LED!!! “ Press a ny key t o c onti nu e ........ 3. Ret urn t o Con f ig ura ti on/S etu p Ut il it y main men u. 4. Sel ect Sav e a n d Exi t Setup to save and exit Setup and reboot the system.
24 IBM D eskto p Sys tem HMM IMP OR T AN T: Th e se six ite ms are for shad owing ROM code on oth er expans ion car ds. Before you set thes e para meters, you need to know the s pecific addre sses of that ROM code . If you do not kn ow thi s informati on, e na ble all the ROM shado w settings.
General Informa tion 25 The de f ault of Power Man agement is set to User Define, so it allo w s you to set each m ode indi v idually. HDD Power Down Whatev er Po wer Manageme nt is set, the ranges are from 1 mi n . to 15 min. a nd Disabled. T he default is Disab led.
26 IBM D eskto p Sys tem HMM V ideo Off Metho d This determines the man ner in whi ch the m onitor is blanked. Th e default i s set t o V/H SYNC+Blank. When V/H S Y NC+B lan k is chosen, thi s selection will cause the system t o turn of f the ve r tical and horizo ntal s ync hronizat ion ports and wr ite blanks to the video buffer.
General Informa tion 27 IR Q8 (RTC Alarm) Th e def a ult is En abl ed. IR Q9 (IR Q2 R e dir) The default is Di sabled. IRQ1 0 ( Re se rved) T he de fault is Dis abled. IRQ11 (R eser ve d) T he def ault is Disabl ed. IRQ1 2 ( PS/ 2 Mous e ) The de fault is Enabled.
28 IBM D eskto p Sys tem HMM is i n suspend s tate. When it is se t to S3(STR), only the syst em me m ory is wo rking, the r est of the components are in susp end state.
General Informa tion 29 Spe cificatio ns Dime nsi on (wi dth x dept h x he ight) • Sys tem unit : 190mm x 370 m m x 384 mm Weig ht • System uni t: 12.
30 IBM D eskto p Sys tem HMM Oper ating Re quirem ents All machine s r eq uir e two po w er i npu ts : o ne for the sy stem unit a nd one for the mon ito r di splay. The sys tem unit comes with a v oltag e sele ctor switch, allowi n g sel ection of vo lta ge of ei t he r 1 1 5 Vac or 230 V ac .
Check Pro cedu res 31 Ch ec k Proc ed ures Introduct ion ...... ........ ........ ........ ........ ........ ............ 32 Start ... ........ ........ ........ ........ ........ ........ .................. 33 Index of Symptom s, M e ssages, Erro r Codes, or Beeps .
32 IBM D eskto p Sys tem HMM Intr oducti on This chapter c onta i ns the check p roc edure s used to diagnos e the ca uses of pro duct f ail ures. The diag nosti c i nformat ion consi sts of: Start: This is t he sta rting point for any diagnostic action.
Check Pro cedu res 33 Star t This i s the entry point for a ll ch eck p rocedure s. The check pro ced u res use fa i lure symptoms , P o we r-On Self T e s t (POST) e r ro r codes, o r bee p s to help determi ne the d efecti ve field replacea ble unit (FRU).
34 IBM D eskto p Sys tem HMM The har d disk drive c on t ain s pre-loaded so f t w are. Be sure to reload t he software on the primary hard disk dri ve (Drive C) w hen repl acing i t. IMP OR T AN T: Th e drives in the system you are servic ing m a y h a ve been rearran g ed, or the drive sta rtup sequen c e has changed.
Check Pro cedu res 35 includin g speakers an d micr ophone from the syste m u nit, ex c ept for the ke yboa r d, mous e, and monito r. • Powe r o ff the system u nit (unplug the power cord) before moving it or whe n re pla cing FRUs.
36 IBM D eskto p Sys tem HMM • Compare t he sy stem configurat ion list wit h the actu al d ev i ces in stal l ed in s y stem. NOTE: If necess ary, re mo ve the ma c h i ne cover and visua lly comp are the device s installe d i n system to th ose sho w n in the system conf iguration report.
Check Pro cedu res 37 - Che c k all adap t er c ard jump er settings. - Che c k all a dap t er c a r d sw i tc h settings. - Che c k all a dap t er c a rd c a b l es a nd co nnectors. M ake s u re that all o f the above are set correctly and sh ow th e correct voltage s and co nt inuity.
38 IBM D eskto p Sys tem HMM Ind ex of Sympt oms, Me ssage s, Err o r Co des , or Bee ps How t o Use E rror Me ssages: Use the m essages, error c o des , and beeps comb inati ons t hat o ccur to diagnos e failure s. If more than one fa ilur e occurs, begi n the diagnos is from the first fai lure that appeared.
Check Pro cedu res 39 If y o u are unable to correct the pr oblem using these tw o index tabl es, go to “ Undete rmined Problems ” on page 74. NOTE: 1. If an error mess age a nd inc o rre ct au dio response occ ur , d iagnose the error mess age first.
40 IBM D eskto p Sys tem HMM T able 2-1 POST Er ror Co des an d Messages List NOTE: T o di agno se a pr oblem, fi rs t find the BIOS error mes s ag es or code s in l eft c olu m n . If dire c t ed to a chec k proc ed ur e , re pl ac e the FR U ind ic at ed in the che ck p roc edur e.
Check Pro cedu res 41 Error Encou nt er ed I nitia lizi ng Ha rd Drive 1. En ter Con figu rat ion/ Setu p Utility t o load the defa ult s ettin g 2. IDE ha rd dis k drive po wer 3. IDE h a r d di sk d r i ve cabl e/ conn ec tion 4. IDE har d di sk dr ive Error Initializing Hard Disk Controlle r 1.
42 IBM D eskto p Sys tem HMM Me mory Ad dre ss Er ror a t ... .... Me mory Pa rity Er ror at. ............ Mem ory Si ze Ha s Chang ed Si nc e La s t Bo ot Me mory V erify E rror at. ........... RA M Pa rity Error-Checking For S egment.. 1. In ser t the me mo ry modu les in th e DI MM sockets prope rl y, t hen re boot t he sy ste m 2.
Check Pro cedu res 43 Flop py Di sk( s) Fai l (8 0) 1. Re-c onne ct f lo ppy di sk dri ve 2. En ter Con figu rat ion/ Set up Utili ty an d load t h e defa ult s ettin gs. 3. Fl op py d isk dr iv e 4. Sy ste m bo ard Flop py Di sk( s) Fai l (4 0) 1. Re-c onne ct f lo ppy di sk dri ve 2.
44 IBM D eskto p Sys tem HMM T abl e 2-2 BIO S Erro r Beep s List NOTE: T o di agno se a pr oblem, fi rs t find the BIOS error bee ps in le ft colu mn.
Check Pro cedu res 45 T able 2-3 Error Sym ptoms L is t NOTE: T o diagn ose a prob le m, firs t find th e er ror sym ptom in the left column. I f directed to a check procedure, rep lac e th e F RU ind ica ted i n the ch ec k proc edur e.
46 IBM D eskto p Sys tem HMM Incorr e ct me m ory size sho wn or repe at ed du ri ng POS T . 1. In ser t the me mo ry modu les in th e DI MM sockets prope rl y, t hen re boot t he sy ste m. 2. Memor y modul e. See “ 005 - ” on pa ge 6 5 to re plac e mem ory m odul e.
Check Pro cedu res 47 Me dia and drive are mis m atch ed. 1. En su r e t h at th e dis k et t e dri ve is c on fig ure d corre ctly in th e Disk Drives of Configura tion/ Setu p Util it y . S ee “ Hard Disk Drive ” on pa ge 4. 2. En su re t h at the dis k et t e dr ive i s corr ec tly form atted .
48 IBM D eskto p Sys tem HMM Di ske t te dri v e t es t f ail ed . 1. Dis ke tte 2. Dis ket te driv e 3. Dis ket te dri ve c able 4. Sy ste m bo ard Hard Disk Drive NOTE: Ensu re h ard disk dr ive i s.
Check Pro cedu res 49 CD/DVD-ROM Driv e NOTE: En sure CD/ DVD- ROM dri ve is conf ig ured c orr ectly in C onf i gu rat io n/ Set u p Utili t y , cable/ ju mp er a re se t co rrectly and its laser bea m is clean before diag no si ng an y C D / D VD-R OM dri ve prob le ms.
50 IBM D eskto p Sys tem HMM CD/DVD-ROM drive c an play audi o CD bu t no so un d outp ut. 1. En su re th at the head ph one j ack o f th e CD/D V D- R O M ha s an out pu t, then c hec k i f th e audi o cab le fr om C D/ DVD-ROM drive to sys tem bo ard CN20 is conn ected p rop erl y.
Check Pro cedu res 51 Mo de m ring c ann ot wake up sy st em from susp end mode. 1. En su re th e “ Mod em Wake - Up on R i ng ” in Co nfigu rat io n/Setu p Util ity is set to [En abled] . “ Powe r Mana ge ment ” on page 5. 2. If PCI mo dem car d is use d, rein ser t th e mode m car d to P CI slot firm ly o r re plac e mode m c ard.
52 IBM D eskto p Sys tem HMM Di sp lay pro bl em n ot li st ed abov e (incl ud ing b la nk or ille gible moni to r ) . 1. “ Moni tor ” on page 72. 2.
Check Pro cedu res 53 Powe r Su pp ly Pre ssi ng po wer s w itch d oes not tu r n off syste m. (O nly unpl ug pow er cor d f r om el ect rical outl et ca n tur n of f sys tem.) 1. Po wer swit ch ca ble as sem bly 2. “ Power Supply ” on page 69 Pre ssi ng po wer s w itch d oes not t urn on system .
54 IBM D eskto p Sys tem HMM T ro ub le shoot ing Failin g Parts or Assemb lies: Th e check pr o cedures genera lly he l p you trace a pr oblem t o one part or ass embly . The l ast s tep o f the s pecif ic check procedu re you ar e using i ndicate s tha t a part or assembly is failing .
Check Pro cedu res 55 NOTE: If you cannot ac c es s th e h ard disk drive or load a d iske tte fro m Drive A or load a CD from the CD-R OM drive, make sure that the Config uration /Set up Util it y has t he startup seque n ce set with disk ette, CD R O M, and hard disk d rives.
56 IBM D eskto p Sys tem HMM NOTE: Th e CD-ROM dri ve th at c omes with s y ste unit s hould be co nfigured a s IDE Secondary Chann e l M aster device. • Check all pow er suppl y vo ltages, sw i tch, and jumper sett ings bef ore you rep lace the system board .
Check Pro cedu res 57 • If t he diagno stics prog ram did not de te ct a f ailure, but t h e sy s tem s till displ ay s a failure: - If a n error or oth er symptom appears, go to “ In - dex of Sy mptoms , Messag es , Error Cod es, or Beeps ” on page 38.
58 IBM D eskto p Sys tem HMM Fact o ry-I nsta lled Mo de m Card NOTE: The fac to ry-i n sta ll ed mod e m is a 56.6 Kbps modem with a cab le of m icrophone-in and speake r-o ut from sy stem board. 001 - ST ART • In Windo ws 98 Device Manager, ensure that the mode m is not config ured with a conflicting COM port and IRQ setting.
Check Pro cedu res 59 1. Start Micros oft Windo ws 98. 2. Selec t the Start icon. 3. Sel ect Pr ogra m , then select Acces s or ies , H yper Te r m i n a l . 4. Selec t an on -line ser vice statio n, d ial and connect to it. 004 - CAN THE MODEM DIA L OUT AND CONN E C T T O A N Y BB S S U CCESSFULLY? (YES, READ A H EAD .
60 IBM D eskto p Sys tem HMM Aud io (No t Supp ort ed by D ia gnos ti cs Pro gra m) IMP OR T AN T: Au dio t est s for the so u nd ca rd cannot be c ar ri ed o ut i n t h e P C- Doctor DOS diagnost ic s program. I t i s, h owe ve r, possible to carr y out a d ial ton e test for the modem.
Check Pro cedu res 61 004 - • Per form the foll owi ng under Windows 98. NOTE: If an o pe rating sy stem other t han Microsoft Win dows 9 8 is i ns tall ed, th e pr ogr am screens and icons may differ from t h ese in struc tions. 1. Start Micros oft Windo ws 98.
62 IBM D eskto p Sys tem HMM • If t he err or canno t b e re s olved, replace the system board . • End..
Check Pro cedu res 63 CD/DVD-ROM Dr ive 001 - ST ART • Inse rt the d iagnost ics disket te in to the diskette drive and ensu re that the re is no CD/ DVD in the CD/ D VD-ROM dri ve. • Select Int eracti ve Te sts menu, then se le ct and execut e CD/DVD -R O M T e st .
64 IBM D eskto p Sys tem HMM 005 - IS T H E CD /DVD S TI LL NOT R E A DABLE? ( Y ES , R E AD A H E AD. NO, GO TO S TE P 006.) • Repl ace sys tem board .
Check Pro cedu res 65 M emor y 001 - ST ART • Power off the sy stem un it. • Inser t the diag nostic s disket te i nto t he d is k ette driv e. • Ensu re t hat al l D I M M s are instal led c o rre ctly. • Pow er on the s ystem unit. • T ak e note of any m e ssages, error c odes, or sy mpt om s.
66 IBM D eskto p Sys tem HMM Keyboard 001 - ST ART • Powe r o f f s ystem u nit and ensure the keyboard plug is connected p roperly. 002 - • Inse rt the d iagnost ics disket te in to the diskette drive and power on the system unit. • Selec t Interac tive T es ts m enu, th en execute Keyboa rd tes t.
Check Pro cedu res 67 Mo use NOTE: A sticking key butto n can cau se the m ouse to operat e inc orrect l y. I f y ou s us pect this, go to “ Key board ” on page 66. 001 - ST ART • Make s ure t hat the m ouse ball turns fre ely. • Make s u re t hat the m ous e plug connects properly.
68 IBM D eskto p Sys tem HMM 008 - ARE THERE ANY BROKEN PI NS IN THE MOUSE PL UG? (Y ES, GO TO STEP 0 10. NO, READ A H EAD.) • T ry w it h a k n o wn good mouse. 009 - DO THE ERRO R SYMPTOMS STILL REMAIN? (YES, READ AHEAD. NO , GO TO STEP 010.) • Repla ce the syst em board.
Check Pro cedu res 69 Pow er Sup ply 001 - ST ART A TTE NTION: Check the Power Over ri de sw i tch , situat ed at the b ack o f the mac hine, jus t above the connect or for the power cabl e. If this switch is activ a t ed (swit c he d to on), no power will be supp li ed to the syst em.
70 IBM D eskto p Sys tem HMM 005 - DO E S T HE POWER SU P PL Y F AN RUN? ( Y ES , R E AD A H E AD. NO, GO TO S TE P 009) • With the sy s t em powered on an d the power supply fan r unn ing , chec k the voltages of th e power suppl y conn ectors for the system b oard and all drive connec t ors , as sh own in the fo ll o wi n g figures.
Check Pro cedu res 71 007 - DO Y OU HA VE AN OH M R E ADI N G W HEN THE SW ITC H I S PRE S SED AND AN OPEN READING WHE N T H E SW ITCH IS REL E A SED? ( Y ES , R E AD A H E AD. NO, GO TO S TE P 008.) • Replac e the on/off switch cable assem bly. 008 - • Repl ace the s yst em b oard.
72 IBM D eskto p Sys tem HMM Mo nito r Fir st, set the system to VGA mo d e. To do th is in Window s 9 8, dep res s the F8 fu nction key during startup. Sa fe mo de (VGA) w i ll be set fo r W indo w s 98. Use t he operating s ystem's vi deo set u p t o change the moni tor reso lu tion .
Check Pro cedu res 73 NOTE: If t he m on itor was no t so ld tog e th e r with the system unit, y ou m a y need to r efer to the servic e inf o rm ation provided with the mon itor.
74 IBM D eskto p Sys tem HMM Un determ ined Pr obl ems If a n error code, er r o r mess ag e or e rror beeps is prese nt, go to “ Ind ex of Sy mptom s, Messa ges, Error Cod es, or B eeps ” o n page 38.
Check Pro cedu res 75 8. I f the sympto m cha nges, go to “ In de x of Symptom s, M ess ages, Erro r Co des, o r Beep s ” on page 38 or to the check procedu re for th e last item tested. Repla c e the last item tested if the system operates norm al ly a fter removi ng th e las t i tem.
76 IBM D eskto p Sys tem HMM.
Di a gn ostic Aids 77 Diagnostic Aids Introduct ion ...... ........ ........ ........ ........ ........ ............ 78 Power -On Self Test ........ ........ ...... ........ ................ 79 Diagno stic Diskette .... ........ ........ ........ ....
78 IBM D eskto p Sys tem HMM Intr oducti on This sect ion explains th e diagnos tic aids, power-on s el f tes t ( P O S T) a n d d i ag no st ics progra (PC-Doc to r ), t ha t are ava ilable for t ro ubleshooting problem s o n the system.
Di a gn ostic Aids 79 Power- On Self T est Each time you power-on the sys tem, the power-on self test (POST) is init iate d. Several items are t est ed during PO S T, but is fo r t he mo st part tra nsparent to the u s er. POST c h eck s the f ol lo wing: T o start POS T , turn on the monito r and then the sy stem u ni t.
80 IBM D eskto p Sys tem HMM 4. I f no key boar d keys a re press ed , a nd if POST i s comp lete d w ithout errors, the syst em will then proce ed with the l oadin g of Windows98 or other operatin g .
Di a gn ostic Aids 81 Diagn os tic Dis ket te W ARNI NG: This manua l is intended to t est the IBM Perso nal Co mpu ter Type 227 4 machine type onl y. Testi ng dev ices whic h are n ot included with t.
82 IBM D eskto p Sys tem HMM Usin g Diag nos t i c P ro g ra m from Recover y CD 1. Inse rt the Personal Com puter rec o very CD into the CD-R OM d rive then restart comp uter.
Di a gn ostic Aids 83 Diag no stics P r og ram Fea tures Diag nosti cs pro gram (PC -Doctor ) inc ludes the foll owi ng feat ure s: T able 3- 1 Dia gnost i c Progr am Ma in Menu Se lectio ns Ma in Me .
84 IBM D eskto p Sys tem HMM Hardw are In fo • VGA Info rmation • So ftw are Int err upt s • SCSI Devic es • I/O U se • IDE D r ive In fo • PCI In fo rma ti on • PNPIS A Info rmation •.
General Informa tion 85 Re pa ir In for ma ti o n Removals a nd Replac ements . .......... .......... ......... 86 Handl in g E SD- S e nsi t ive Parts .... .. .. .. .. .. .. .. ........... 87 Cover .. ........ ...... ...... ...... ........ ...... ...
86 IBM D eskto p Sys tem HMM Remo val s and Replac ements BEFO R E R E M O VIN G A N Y F R U , PO WER-OFF THE COMPUT ER, UNPLUG ALL P OWER CORDS FROM ELE CTRI C A L O U T L ETS, THE N DI S C O NN E C T ANY INTERCON N E C TING C A B LES.
General Informa tion 87 Hand l ing ESD-Se ns it ive Par ts Many electroni c par ts are sensitive to elect rostatic disc harge (ESD). To pre vent damage when working with ESD-s e nsitive part s, obser ve the following instructi ons.
88 IBM D eskto p Sys tem HMM Iden tify ing the Parts of the S yste m Unit This com p uter s ystem has fou r b ays t hat can hold 5.25-inc h and 3.5-inch drives. A dditional devices can be install ed in th e empty bays. Diskette drives in this unit use t he sta nd a rd diskette advance d technol o g y (AT) inte r fac e .
General Informa tion 89 disk , tape, o r Zip d riv e. 3. Bay 3. This dri ve bay c an hol d a 3 .5-inch sli m dri ve, such as a di s ket te, h ard disk , tap e, or Z ip drive. 4. Bay 4. This d ri ve bay i s desig ned for a 3 .5-inc h diskette driv e. 5.
90 IBM D eskto p Sys tem HMM Cover • Disconn ect th e sy s tem u nit p ower cord. • Remov e t he 4 screws at the bac k of the t ower. • Inse rt a s cr ew dr ive r under o ne of the tabs on the back of the cov er and gentl y pry t he tower cover so tha t it separ ate s from the towe r.
General Informa tion 91 NOTE: Repl acing the Cover • T o replace the to w er cove r , lower the cov e r down over the tow er , pres sing i n on t he sides so the hook s inside the cov er fit over the b ottom ledge of the t o w e r. Slid e the cove r forwar d into place.
92 IBM D eskto p Sys tem HMM Bay Panels If y o u r emov e a drive fro m a b a y and you do not intend to install a n ew drive immedia tely, reinstall the bay panel on the emp ty ex pose d drive bay. Follow t h ese s t eps t o remo v e t he plastic b a y panel from th e front of the system un it c over.
General Informa tion 93 Bay 1- 5.25-In. Bay (Inte rnal or Exter nal Ac cess ) • Disconn ect an y ca b le on the d ri ve ( n ot e location and orientat ion of cables).
94 IBM D eskto p Sys tem HMM Bay 3 - 3.5-In. Bay (Int ernal or External Ac cess ) Ba y 4 - 3. 5- In . Ba y (E xte rn al A cce ss fo r Disk et te Dr ive) • Disconn ect the c ables ( n ote location of cables). • Press t he le ver a n d r ota te ou tward.
General Informa tion 95 NOTE: Rein stall the 3 .5-in Dr ive Frame • Befor e reinstall ing the drive fram e into the main unit, mak e s ure t he uppe r and lower dr ive frames are p rop erly re attache d.
96 IBM D eskto p Sys tem HMM Front Panel • Remo v e t he 2 screws a n d release th e 6 latches that holds the front panel. • Gent l y remove the f ront panel from the tower.
General Informa tion 97 Pow er Su p ply • Disconn ect al l c abl e s neces s ary before r emoval (note loca tion of c ables). • Remov e the four scre w s fro m t he cha ssis.
98 IBM D eskto p Sys tem HMM Adapter Cards NOTE: 1. Before re moving an adapter card , not e the loca ti on o f the ada pter c ard a nd any cables. When re mo ving an ada p ter card, install the repl acem en t car d in the sam e slot as the on e you r emoved .
General Informa tion 99 Memory(DIM M CAUTION: Memor y modules are sensiti ve to static disc harge . • Press t he lever s on both s i des o f the socket down and o utwa rds.
100 IBM Desktop System HMM AMD K7 Dur o n P ro ces sor NOTE: Determi n e the typ e of p r oce ssor you are install in g an d m a ke s ure the jump ers are set corr ectly . R un the Configur ation/Set up Utility afte r correct ly i nstalling a proc es sor.
Gener a l Inf ormation 101 NOTE: Install ing the processor • Place the Z IF socke t r elease le ver to the rel ease (up) po sition. • Insert th e new p roce s s or, matchi ng the notched corner of the proc essor w ith the p in 1 indicator on th e so cke t .
102 IBM Desktop System HMM Sys tem Bac kup Batt er y CAUTION: Al l BIOS conf iguration s ettings w ill be lost when t he bac ku p b a ttery i s removed! A TTE NTION: Be c areful wh e n r emovi ng the backup batter y. If th e meta l lever is damaged or broken , the s ystem board m ust b e replac ed.
Gener a l Inf ormation 103 Indica tor LED and Cab le • Pus h in on th e i ndicat or L ED and r e m ove from the rear. • Di sco nne ct th e L ED an d ca bl e f r om the syste board .
104 IBM Desktop System HMM Sys tem Boar d • Remov e all adapter car ds. • Disconn ect all c ab l e s connec te d to the system board. Note the location and orientation of all cables . • Remov e t he scr ews secur ing the system board to t he cha ssis .
Gener a l Inf ormation 105 • Upgrade t he BI OS version on t h e new system board using the BIOS up g rade utility. • Change the M achine T ype and Seri al N umber in the BIO S to matc h the orig inal plana r BIOS settin gs. • Reboot the s y stem and r un t he Co nf iguration/ Setup U tili ty.
106 IBM Desktop System HMM.
Parts/T est Poi nt L ocations 107 Part s/Test Po int Locat ions Introduct ion ...... ........ ........ ........ ........ .................. 108 System B oard J u mp ers a n d Connectors . .. .. .. .... 109 Power Su ppl y Conne c to rs and Voltages ...
108 IBM Desktop System HMM Intr oducti on This chap t er contai n s sys tem board l ayouts and jumper se ttin gs. It is u sefu l whe n you are asked to measure voltag es . U se this informati o n to help you locate pa rts s u c h as el ect ronic boa r ds, con nectors, pin numbers, a nd t est poin ts.
Parts/T est Poi nt L ocations 109 Sys tem Board J umpers an d Co nn ect ors NOTE: The blackened pin of a jumper represents pin 1 . System B oa rd Connector Functions Sys tem B oard Jumper Set ting Jump er/ Set tin gs Fu nctio n JP14 1-2 2-3 CMOS Setu p *Normal Clear CMOS C onne ctor Funct ion Con nect t o.
1 10 IBM Desktop System HMM NOTE: The whi te c o rne r of the j u m per block repre sents pi n 1. CN6 HDD L ED co nn ecto r HD D LED CN7 Au dio co nn ecto r CN10 AGP v i deo c ard conn ect or VGA card.
Parts/ T est Point Lo cat ions 1 1 1 Powe r Supp ly Co nnecto r s a nd V oltages Refer to the f ollowing figure s wh en checking fo r voltages on pow e r supply cable connectors.
1 12 IBM Desktop System HMM 14 +5V dc Gree n 15 Grou nd Bla ck 16 Grou nd Bla ck 17 Grou nd Bla ck 18 no co nnec t no co nn ect 19 +5V dc Red 20 +5V dc Red Power S uppl y O utpu t Pin Assignment ( Con.
Parts/T est Point Locat ions 1 13 Network Card s NOTE: While t ransferring the data,”Act” L ED emits li gh t to in dicat e a read y stat e and th e link indicato rs “10 Link” o r “100 Link” sp ecifies the current li ne tra nsm is s ion s pee d.
1 14 IBM Desktop Syst em HMM Factory-Installed Modem Card Layout GVC Askey GVC Fa ctory-Ins talled Mo dem Car d Connector Functio ns Item F unction Connect to.
Par ts/T est Po int L oca tions 115 V ide o Ca rd s Nvidia M6 4 w/ TV Out, 32MB Nvidia NV 10 w/ TV Out, 32MB.
1 16 IBM Desktop System HMM 1 Optional out pu t fr om moni tor. 2 Note: The IEEE-13 94 i nternal cable bundle needs an o u ter shield to mi n i mize internal crosstalk with in the cable constru cti on. The o uter EMI c onta in men t shield fo r the IEEE-1394 func- tion wil l be pr ov ided by the ov e r a l l P&D cable shield.
Par ts/T est Po int L oca tions 117 3. 5-In. Har d D isk Dri ve Jumper Set tings The co nfigur ation of the fol lowing ju m p er s control the drive's mo de of o peration: • Master • Slave • CSEL - Cable S elect 3.
1 18 IBM Desktop System HMM The co nfigur ation of the fol lowing ju m p er s control the drive's mo de of o peration: • DS - Drive Select ( For Mas ter only) • CS - Cable S elect • PK - Park, used as a plac e to store a jump er 3.5-In Qu an tu m Fireball Se r i es Hard Disk 3.
Par ts/T est Po int L oca tions 119 CD-ROM Drive A TTE NTION: E it h er < o pt io n 1 > or < o p t io n 2> CD-R OM d rive may com e wit h you r machine. Their fron t pan el but tons, i ndicators and emerge ncy ejec t me tho d may be different.
120 IBM Desktop System HMM A TTE NTION: Mak e sure t o turn off t h e po wer before manual d isc eject o peration. CD-RO M Front Panel Introduction I tem De scr ipt ion 1 Loa d / e je ct bu tto n 2 H .
Parts/T est Poi nt L ocations 121 CD- R O M Dri ve Re ar Pa n el Co nnectors and J umpe rs NOTE: CD-ROM dri ves may come with item no. 5 (digi tal audio output) connectors . CD-RO M Dri v e Rear Panel Connect ors and Jumpers Item Fu nction Co nnect to .
122 IBM Desktop System HMM CD-ROM R/W Dri ve A TTE NTION: E it h er < o pt io n 1 > or < o p t io n 2> CD-ROM R/W dri ve may come with your Perso nal C omput er. T h ei r fro nt panel buttons, indicato rs and emergen cy eject methods may be diff erent.
Parts/T est Poi nt L ocations 123 CD-ROM R/ W Drive Rear P ane l Conn ect ors an d Ju mpers NOTE: CD- RO M R/W d r iv es m a y co me wit h it em no. 5 ( d igital audi o output an d testi n g jumper) conn ecto rs . CD-RO M R/W D rive R ear Panel Connectors and Jum pe rs It em Func ti o n C onne ct t o .
124 IBM Desktop System HMM DVD-ROM Drive Front Panel a nd Emergency -Exi t DVD-RO M Front Panel I ntroduction It em De scr ipt io n 1 Open /Cl o se Butt on 2 D is c Indi ca to r 3 H ea dp ho ne Volu m e Co nt r ol 4 H ea dp ho ne J ac k 5 E merg en cy ej ec t ho le.
Parts/T est Poi nt L ocations 125 DVD- ROM Dri ve Re ar Pan el Conn ectors and J umpe rs DVD-RO M Dr ive Rear Panel Connectors and Jum pe rs It em Fu ncti on Connect to... 1 P ow er co nnect or Po wer supp ly 2 IDE In terface co nnector System boar d CN12 3 C onf igu rat io n jump er .
126 IBM Desktop System HMM DIMM Configur ati on s The 227 4 system boa rd h as thr e e DI MM sockets. A maximum of 384 MB mem ory may be installe d. You can inst al l 8MB , 1 6 MB, 6 4 MB or 1 28MB PC-100/ PC-133 DI MM in any socke ts and with any com bi na tio ns.
Parts/T est Poi nt L ocations 127 Syst em Bo ard C onnec tor P in Sign als Monitor Port Signals Serial Port S ignals Pi n Sig nal Name I/O P in Si gna l Name I/ O 1 R ed Video O 9 +5 V dc 2 Gr een V i.
128 IBM Desktop System HMM Parall el Port Sign als Mous e Po rt Signals Keyboard Port Sign als Pin Sign al Name I/O Pin Sign al Name I/O 1 Strobe O 14 Auto Feed N/A 2 Data Bi t 0 I/O 15 E rr or I 3 Da.
Parts/T est Poi nt L ocations 129 Disk et te Dr ive C able Conn ecto r Signals Pin Signal Name I/O Pin Sig nal Name I/O 1 Grou nd 18 Di rec tion 0 2 Density Select O1 9 G r o u n d 3N o Co nnec tion 2.
130 IBM Desktop System HMM IDE C able C on nector Signals Pi n Sig nal Name I/ O Pi n Sign al Name I/ O 1 Host Reset O 21 No Co nnect i on 2 Ground 22 Ground 3 Host D a ta 7 I/ O 23 H ost IOW O 4 Host.
Di agnostic Aid s 131 Safe ty In sp ec tio n Gui de Gener al Gu idelines .. ...... ...... .... ...... ...... .............. 132.
132 IBM Desktop System HMM General G uidelines The pur pose of this Safe ty In spection Guide is to help you identify poss ible unsa fe condi ti on s on machines that are bein g in spe cted for a M a intenance Agreem ent.
Parts Cata log 133 Part s Catalog Abbre viations ... ........ ........ ........ ........ .................. 134 System A ss embly ........ ...... ...... ...... ...... .............. 135 Assembly 1 : S ystem Unit ... ........ ........ ......... 135 Ass embly 2: Disket te, Hard Driv e and Zi p Drive .
134 IBM Desktop System HMM Ab breviat ions In t his c hapte r, th e fo llowing abbrev iations are used to identify coun try and l anguage version: Cou ntry Langu age Version AT A u s t r i a AU Aus tr.
Parts Cata log 135 System Assembly Ass emb ly 1: Sy stem Uni Asm- Ind ex FRU Number Description 1- 1 22P 22 59 Main Be zel (w/ Fr ont US B ) , Whit e, Aptiva 1- 1 22P 22 70 Main Be zel (w/ Fr ont US B ) , Whit e, Netvist a 1- 2 2 0L21 97 3.
136 IBM Desktop System HMM 1-9 19K36 49 Socket K7 Duron 64K /2 00 60 0MHz 1-9 19K36 50 Socket K7 Duron 64K /2 00 70 0MHz 1-1 0 19K365 3 Fan sink (Du r on Proce ssors) 1-1 1 0 9N3351 64MB DIMM (PC133) .
Parts Cata log 137 Ass emb ly 2: Diske tte, Har d Drive a nd Zip Drive Asm- Ind ex FRU Number Description 2- 1 0 2K 2299 3.5 ", 3 m od e MKE ( JU2 56 A27 6P) 2-2 02K 2603 FDD Cable 2- 3 1 9K15 45 7.5 GB H D D, 3. 5" 54 00 RPM 2- 3 1 9K14 76 10 GB H DD, 3.
138 IBM Desktop System HMM Assembly 3 : CD/DVD-ROM Drive Asm- Ind ex FRU Number Description 3-1 00N83 28 40X CD -ROM , Wh i te 3-1 01N 1952 4X4X 32 X CD - RW (Re ad / Wr i t e), Whi te 3- 1 22P 22 80 .
Parts Cata log 139 As semb ly 4: Po wer Co rd Asm- Ind ex FRU Number Description 4-N S 02K0 545 Po wer Cord - C hina 4-N S 13F9 939 Po wer C ord - A NZ 4- NS 14F 0032 Powe r Co rd - U K/ HK/Si ng apor.
140 IBM Desktop System HMM Ass emb ly 5: Keyb oard an d M ouse Asm- Ind ex FRU Number Description 5- 1 3 7L25 14 104 P alm R est U S EN G 103P , US /Chi na/A NZ /Sing ap ore/I ndi a 5- 1 3 7L25 90 10 .
FRU Number Li st 141 Appendix A. FRU N umber List FRU N um be r Asm - Inde x P age 00K 8183 3 -NS 1 38 00N 832 8 3-1 138 01K 4200 1 -NS 1 36 01K 4278 1 -13 13 6 01N 1940 1 -NS 1 36 01N 195 2 3-1 138 0.
142 IBM Desktop System HMM 20L2 197 1-2 135 22P 2 259 1- 1 135 22P 2 261 1- 6 135 22P 2262 1 -NS 1 36 22P 2264 1 -NS 1 36 22P 2 270 1- 4 135 22P 2 270 1- 1 135 22P 2275 1 -12 13 6 22P 2 276 3- 3 138 2.
Onlin e Support 143 Append ix B. Onli ne Support Inf orm atio n This sect ion describes o nline techni cal s upport servic es a v a il able to help repai r the Personal Computer .
144 IBM Desktop System HMM Here a re some useful IBM Internet addr esses for Personal Comp uter info rmation: ht tp ://w w w.i bm. com/ p c PC Compa ny Ho m e Page ht tp ://w w w.
Index 145 Inde x A AGP 3 Audio Check P rocedure, 60 B BIOS Flas h Update Procedure, 12 Mod el Number and Serial Num ber, 13 BIOS Set up Ut ility 14 Disk Driv es, 17 Main Me nu, 14 Sys tem I nformati o.
146 IBM Desktop System HMM ESD 87 Externa l Por ts 4 H Hard Disk Drive Ca bl e C onn e c t o r Si gn a l s, 13 0 Hard Dis k Drive, 4 Ha rd wa re In terf ace s , 8 I ID E Cable Conn ector Signal s 130 .
Index 147 Port Sign a l s Keyboard, 128 Moni tor 127 Mouse, 128 Paral lel Port, 1 28 POST, 3 8, 79 Power c onsum p tion, 28 Power Ma nagement 5 Power Sup ply Check P rocedure, 69 Conne cto r Pin A ss ig nment 111 Conne ctors and V oltages, 111 Power Sup ply, 6 Processo rs 3 R Removals and Replacem ents 86 Ada pte r Card, 9 8 Bay 1, 5.
148 IBM Desktop System HMM V Video Car ds 115 Voltage Supply Swit ch Settings , vii W Weight, 28.
Pri nt ed i n U. S.A . Intern at ional B usiness Mach i n e s Cor p oration Old Or chard Road, Armonk, Ne w Y o rk 10 504 Pa rt Num ber:.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il IBM 2274 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del IBM 2274 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso IBM 2274 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul IBM 2274 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il IBM 2274, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del IBM 2274.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il IBM 2274. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo IBM 2274 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
