Manuale d’uso / di manutenzione del prodotto dx2708 MT del fabbricante HP (Hewlett-Packard)
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ser v ice r efer ence guide HP C ompaq dx2 7 00 MT/dx2 7 08 MT/dx2 7 00 SFF Business PCs 1st E diti on Th is document pr ov ide s infor mation on the r emov al and replacement of all part s as well as.
Ser vice R efer ence G uide HP C ompaq dx2 7 00 MT/dx2 7 08 MT/dx2 7 00 SFF Busin ess PCs 1st E dition Doc ument P ar t Number : 4316 7 2 -001 September 2006.
© Copyright 2006 He wlett-Packard De velopment Compan y , L.P . The information contained herein is subject to change without notice. Microsoft, MS-DOS, W indows, and W indows NT are trademar ks of Microsoft Corporation in the U.S. and other countries.
Servi ce Ref erence Guide 4 316 7 2 -001 iii Cont ents 1 Installing the Operating System 1.1 Microsoft Windows XP/Redflag Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1 1.1.1 Installing or Upgrading Device Drivers (Only applicable for Windows OS) .
iv 43 16 7 2 -001 Ser vi ce Refer ence Guide Cont en ts 5 Identifying the Chassis, Routine Care, and Disassembly Preparation 5.1 Chassis Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servi ce Re fer ence Guide 4 316 7 2 -001 v Cont ent s 6.9 Front I/O Panel Housing Assembly - MT chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–26 6.10 System Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servi ce Ref erence Guide 4 316 7 2 -001 1–1 1 Installin g t he O pera ting S y stem Depending on the model, Microsoft Windo ws XP Home, W indows XP Professional or Redflag Linux is preinstalled on the computer and will be configured automatically t he first time the computer is turned on.
1–2 4316 7 2 -001 Service R efer ence Guide Inst all in g th e Op erat ing Sy ste m 1 .2 Conv erting to NTFS (As soc i ated wit h WinXP OS) 1 .2. 1 Windo ws XP Home and XP Professional The W indows XP Home and XP Profession al op erating systems handle only NTFS-formatt ed driv es.
Servi ce Ref erence Guide 4 316 7 2 -001 2–1 2 Setu p Utiliti es and Di ag nos tic s Features Setup Utilities (F10) and diagnostic features pr o vide information needed about the computer system when contacting Cust omer Support.
2–2 4316 7 2 -001 Service R efer ence Guide Setu p Utilities and Di agnost ics F eatur es 2.2 C om pu ter Setu p Utiliti es Use Computer Setup Utilities (F10) to: ■ Modify or restore f actory default settings.
Servi ce Ref erence Guide 4 316 7 2 -001 2–3 Setup Utilities and Diagnostics F eatures 3. A choice of headings appears in the Comput er Setup Utilities menu: System Information, Standard CMOS Featur.
2–4 4316 7 2 -001 Service R efer ence Guide Setu p Utilities and Di agnost ics F eatur es 2.2.2 C omp uter Setu p Men u Computer Setup Hea ding O ption Desc ription Sys t e m Info rmatio n Sys t e m S / N (v i ew on ly ) Pr oduct N ame (v iew onl y) Owner Ship T A G [Pr ess Ent er] Enter o wner ship tag assigned b y the ow ner .
Servi ce Ref erence Guide 4 316 7 2 -001 2–5 Setup Utilities and Diagnostics F eatures Standar d CMOS Fe a t u re s (continued) SA T A P o r t 0 SA T A P o r t 1 SA T A P o r t 2 SA T A P o r t 3 F .
2–6 4316 7 2 -001 Service R efer ence Guide Setu p Utilities and Di agnost ics F eatur es Advan c ed BIOS F eatures (continued) Har d Disk Boot Pr ior ity Allo ws y ou to spec ify the or der of attac hed hard dr i ve de vi ces (such as U SB HDD sto rage , US B2 Dri v e K e y , or U SB flash media).
Servi ce Ref erence Guide 4 316 7 2 -001 2–7 Setup Utilities and Diagnostics F eatures Advan c ed Chipset Fe a t u re s PE G/Onchip V G A Contr ol (V G A Se tting) Allows y ou to set sy stem d ispl .
2–8 4316 7 2 -001 Service R efer ence Guide Setu p Utilities and Di agnost ics F eatur es Integr ated P eripher als USB C ontro ller Disables/ena bles USB contr oller . USB L egacy Suppor t Disables/enable s USB legacy support . HD Audi o Allo ws y ou to aut o -detec t or disable onboar d audio .
Servi ce Ref erence Guide 4 316 7 2 -001 2–9 Setup Utilities and Diagnostics F eatures Po w e r Management Setup A CPI F unction Enables/disa bles A CPI f unctions .
2–10 43 16 7 2 -001 Service R efer ence Guide Setu p Utilities and Di agnost ics F eatur es PnP/P CI Configu ration s (continued) IRQ R esour ces •I R Q - 3 a s s i g n e d t o •I R Q - 4 a s s .
Servi ce Refe rence Guide 4316 7 2 -001 2–11 Setup Utilities and Diagnostics F eatures 2.3 Reco v ering t h e Confi guration Set ting s Recov ering the configuration se ttings established in the Comput er Setup (F10) Utility requires that you f irst back up the settings before a recovery is needed.
Servi ce Ref erence Guide 4 316 7 2 -001 3–1 3 Desk top Manag ement ✎ Support for specific features described in this guide may v ary by mode l or softw are version. 3. 1 Initial Confi guration and Dep lo yment HP computers come with a preinstalled system software image.
3–2 4316 7 2 -001 Service R efer ence Guide Desktop Management 1. Remov e all remov able media and turn off the po wer . 2. Insert a disk ette, CD, or USB flash de vice cont ain ing the desired BIOS image file in the root directory . The media must be formatted using the F A T12, F A T16, or F A T32 f ile system.
Servi ce Ref erence Guide 4 316 7 2 -001 3–3 Desk top Man agemen t 3.2.4 W orld Wide W eb Site When making the transition to ne w or revised operating systems, it is important to implement the support software designed for that opera ting system.
3–4 4316 7 2 -001 Service R efer ence Guide Desktop Management 1. T urn on or restart the computer . If you are in W indo ws, click Start > Shut Down > Restart. 2. As soon as the computer is turned on, press and hold the F1 0 ke y until you enter Computer Setup.
Servi ce Ref erence Guide 4 316 7 2 -001 3–5 Desk top Man agemen t T o change the supervisor passw ord, as soon as the computer is turned on, press and hold the F1 0 key until you enter Computer Setup. Press En ter to bypass the title screen, i f necessary .
3–6 4316 7 2 -001 Service R efer ence Guide Desktop Management National Ke yboard Delimiter Charac ters Each ke yboard is designed to meet country-spec ific requirements. The syntax and k eys that you use for changing or deleting yo ur password depend on the k eyboard that came wi th your computer .
Servi ce Ref erence Guide 4 316 7 2 -001 4–1 4 Serial A T A Dri v e G ui delines and Fe a tures ✎ Serial A T A = SA T A HP does not support the use of a P A T A (IDE) hard driv e / optical driv e on th ese model s of computer . 4. 1 SA T A 1 .5 and 3.
4–2 4316 7 2 -001 Service R efer ence Guide Ser ial A T A Dri ve Guidelines and F eatures 4.2 SA T A Hard Driv e C ab les 4.2. 1 S A T A Da ta Ca bl e Always use an HP approv ed SA T A 3.0 Gb/s cable as it is fully backw ard s compatible with the SA T A 1.
Servi ce Ref erence Guide 4 316 7 2 -001 4–3 Serial A T A Driv e Gu idelines and Featur es 4.3 S A T A SMART Dri ves The Self Monitoring Analysis and Recording T echnology (SMA R T ) A T A dri ves f.
4–4 4316 7 2 -001 Service R efer ence Guide Ser ial A T A Dri ve Guidelines and F eatures 4.5 . 1 Lega cy Mode The Legac y mode is used to access devices att ached to an embedded SA T A controller . Each channel of the controller requires two f ixed I/O address ranges and an IRQ.
Servi ce Ref erence Guide 4 316 7 2 -001 5–1 5 Id entif ying t he C ha ssis , Routin e Care, and Di sassem bl y P re pa rat io n This chapter prov ides general service informatio n for the co mputer . Adherence to th e procedures and precautions described in this chap ter is essential for proper service.
5–2 4316 7 2 -001 Service R efer ence Guide Identif ying the Chassis, Routine Care , and Di sassembly Pr eparation Note: dx2708 MT is on ly for China Market.
Servi ce Ref erence Guide 4 316 7 2 -001 5–3 Identifying the C hassis, R outine Car e, and Disas sembly Pr epar ation 5 .2 Elec trostati c Disc harg e Information A sudden discharg e of static electricity from your finger or other conductor can destroy static - sensiti ve de vices or microcircuitry .
5–4 4316 7 2 -001 Service R efer ence Guide Identif ying the Chassis, Routine Care , and Di sassembly Pr eparation 5 .2.3 P ersonal Groundin g Met hods and Eq uipmen t Use the follo wing equipment t.
Servi ce Ref erence Guide 4 316 7 2 -001 5–5 Identifying the C hassis, R outine Car e, and Disas sembly Pr epar ation ■ Static aw areness labels ■ Wrist straps and footwear strap s providing one.
5–6 4316 7 2 -001 Service R efer ence Guide Identif ying the Chassis, Routine Care , and Di sassembly Pr eparation 5 .3.3 Cleanin g t he K e yboar d Follo w all safety precautions in Section 5.3.1, “General Cleaning Safety Precautions, ” before cleaning the keyboard.
Servi ce Ref erence Guide 4 316 7 2 -001 5–7 Identifying the C hassis, R outine Car e, and Disas sembly Pr epar ation 5 .4 Ser vice Considerations Listed belo w are some of the considerations that you should keep in mind duri ng the disassembly and assembly of the computer .
5–8 4316 7 2 -001 Service R efer ence Guide Identif ying the Chassis, Routine Care , and Di sassembly Pr eparation 5 .4.3 C ab les and C onnec tors Most cables used throughout the unit are flat, fle x ible cables. These cables must be handled with care to av oid damage .
Servi ce Ref erence Guide 4 316 7 2 -001 6–1 6 Remo v al and Rep l a cemen t Procedur es— M ic r oto w er (MT )/Small Form F ac t or (SFF ) Cha ss is Adherence to the procedures and precautions desc ribed in this chapter is essential for proper service.
6–2 4316 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.2 Remo v e t he com pu ter access panel an d front bezel ( MT c ha ssis and SFF c h as sis ) 6.2. 1 Access P anel (MT C h as sis) 1.
Servi ce Ref erence Guide 4 316 7 2 -001 6–3 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.2.2 Front Bezel (MT C ha ssis) 1. Prepare the computer for disassembly ( Sectio n 6.1, “Prepara tion for Disassembly” ).
6–4 4316 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.2.3 Remo ving the Com pu ter Access P anel and Front Bezel (SFF ch as sis) T o remo ve the computer access panel: 1.
Servi ce Ref erence Guide 4 316 7 2 -001 6–5 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 4. T o remo ve the front bezel, ge ntly pull up all three tabs 1 on the top of the bezel, then pull the bezel 2 aw ay from the chassis .
6–6 4316 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.3 Using th e Sm all F orm Fac tor Com p uter in a Minitow er C onfi guration The Small Form Factor computer can be used in either a minito wer or desktop configuration.
Servi ce Ref erence Guide 4 316 7 2 -001 6–7 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.4 Front D rive Be ze ls 1. Prepare the computer for disassembly ( Sectio n 6.1, “Prepara tion for Disassembly” ).
6–8 4316 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.5 Me mo r y For more information on the memory in this series of computers, refer to Appendix E, “Memory .
Servi ce Ref erence Guide 4 316 7 2 -001 6–9 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis ✎ A memory module can be installed in only one w a y . Match the notch on th e module with the tab on the memory socket.
6–10 43 16 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 5. Locate the memory module sock ets.
Servi ce Refe rence Guide 4316 7 2 -001 6–11 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.6 Expansion Cards 6.6. 1 Ex pan sio n S lo t C o ver Loc k 1. Prepare the computer for disassembly ( Sectio n 6.
6–12 43 16 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis T o install an e xpansion card in an empty slot continue with step 9.
Servi ce Refe rence Guide 4316 7 2 -001 6–13 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.6. 3 Installin g an Expansion C ard The computer has four PCI e xpansion slots. Each slot can accommodate a half-height PCI or PCI Express e xpansion card up to 6.
6–14 43 16 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 7. Install the expansion card by carefully plac ing the ex pansion card under the slot co ver retention latch 1 , then f irmly pushing the expa nsion card into the connector 2 .
Servi ce Refe rence Guide 4316 7 2 -001 6–15 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.6.4 Remo ving an Expansion C ard T o remov e an expansion card: 1. T urn off the computer properly through the operating syst em, then turn of f any e xternal devices.
6–16 43 16 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6. 7 Cable Managemen t Always follo w good cable ma nagement prac tices when working in side the co mputer .
Servi ce Refe rence Guide 4316 7 2 -001 6–17 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.8 Dr iv es The computer supports up to four drives that may be installed in v arious configurations. This Section describes the procedure for replacing or upgrading th e storage driv es.
6–18 43 16 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.8.2 Remo ving a Driv e 1. T urn off the computer properly through the operating system and turn of f any external de vices.
Servi ce Refe rence Guide 4316 7 2 -001 6–19 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 5. Hard disk is inserted or slide out from the back. Re mov ing the Har d disk 6. Remov e one guide scre ws (Floppy Dri ve on ly) from the old driv e.
6–20 43 16 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis T o v erify the type, size, and capacity of the storage de vices installed in the computer , run Computer Setup.
Servi ce Refe rence Guide 4316 7 2 -001 6–21 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 7. Remove the scre ws 1 that secure Flopp y dri ve and Optical dri ve. Re mov ing the Optical Dr iv e or Disk et te Dr iv e T o replace the dri ve, re verse the remov al procedures.
6–2 2 43 16 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis Installing Gui de Scr ew s in the Optical Dri ve 3. Position the guide scre ws on the driv e into the J-slots in the driv e bay 1 .
Servi ce Ref erence Guide 4 316 7 2 -001 6–2 3 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 4. Raise the Easy Access driv e bay to the upright position and connect the flat ribbon cable and audio cable to the system b oard.
6–2 4 43 16 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.8.6 Upgradin g t he H ard Driv e - SFF c h assis Remo ving and Rep la cin g t he H ard Drive ✎ Only a serial adv anced technology attachment (SA T A) hard dri ve can be installed on this computer .
Servi ce Ref erence Guide 4 316 7 2 -001 6–25 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6. Remove the scre w 1 . 7. Slide the driv e to the right of the bay 2 . Re mov ing the Har d Dri v e 8. T o install a hard dri ve, re verse the abov e procedure.
6–2 6 43 16 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6.9 Front I/O P anel H ousing As sembly - MT c h assis 1. Prepare the computer for disassembly ( Sectio n 6.
Servi ce Ref erence Guide 4 316 7 2 -001 6–2 7 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6. 1 0 Sy s tem Fan 1. Prepare the computer for disassembly ( Sectio n 6.1, “Prepara tion for Disassembly” ).
6–2 8 43 16 7 2 -001 Service R efer ence Guide Re mova l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6. 1 1 Hea tsink - MT c ha ssis 1. Prepare the computer for disassembly (S ection 6.1, “Preparatio n for Disassembly”).
Servi ce Ref erence Guide 4 316 7 2 -001 6–29 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6. 1 2 Proces sor 1. Prepare the computer for disassembly ( Sectio n 6.1, “Prepara tion for Disassembly” ).
6–30 4 316 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 5. Go to step 7. 6. If using a new heatsink, remov e the protective co vering from the bottom of the heatsink and place it in position atop the processor .
Servi ce Refe rence Guide 4316 7 2 -001 6–31 Re mova l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6. 1 3 S ystem Board 1. Prepare the computer for disassembly (S ection 6.1, “Preparatio n for Disassembly”).
6–3 2 43 16 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6. 1 4 B a t t er y The battery that comes with yo ur co mputer provides po wer to the real-time clock and has a lifetime of about three years.
Servi ce Ref erence Guide 4 316 7 2 -001 6–33 Remo val and R eplacement Pr ocedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6. 1 4. 1 B a t ter y H ol d er 1. T o release the battery from its holder , squeeze the metal clamp that extends abo ve one edge of the battery .
6–34 4 316 7 2 -001 Service R efer ence Guide Remo va l and Replacement Pr o cedur es— Mic rot ow er (MT)/Small F orm F actor (SFF ) Chassis 6. 1 5 P o wer S u pp ly Å WA R N I N G : V oltage is alway s present on the s ystem bo ar d when the computer is plugged into an acti ve A C outlet .
Servi ce Re fer ence Guide 4 316 7 2 -001 A–1 A Conn ec tor P in As signm ents This appendix contains the pin assign ments fo r many computer and workstation connectors.
A–2 4316 7 2 -001 Ser vi ce Refe rence Guide Connect or Pin As signments Pa r a l l e l I n t e r f a c e Connector and I con Pi n Sign al Pin Sign al Pin Signal 1 2 3 Stro be Data Bi t 0 Data Bi t .
Servi ce Ref ere nce Guide 4316 7 2 -001 A–3 Connecto r Pin Assignmen ts Headphone Conne ctor an d I con (1/8" miniphon e) Pin Signal 1 (Ti p) Aud io _Le f t 2 (R ing) Audi o_Ri ght 3 (Shield) .
A–4 4316 7 2 -001 Ser vi ce Refe rence Guide Connect or Pin As signments 24 - Pi n Power Connector Pi n Sign al Pin Si gna l Pi n Sign al Pi n Signal 1 2 3 4 5 6 7 +3 .3 V +3 .3 V GND +5 V GND +5 V GND 8 9 10 11 12 13 13-1 P. G +5 VSB +12 V +12 V +3 .
Servi ce Ref ere nce Guide 4 316 7 2 -001 B–1 B P o w er C ord Set Requiremen ts The v oltage select switch feature on the comput er permits it to operat e from any line v oltage between 100-127 or 220 -240 volts A C (230V -Ch ina only).
Servi ce Ref ere nce Guide 4 316 7 2 -001 C–1 C PO ST E r r o r M es s a g e s An error message results if the Po wer -On Self-T est (POST) encounte rs a problem. This test runs when the system is turned on, checking assemblies within the co mputer and reporting any errors found.
C–2 4 316 7 2-001 Serv ice Ref erence Guide POST Er ror Me ss a ge s Pri mar y Master/Sla ve H a rd D i s k E r ro r Pri mar y Master/Sla ve har d dri ve could not be initiali z ed by the BIO S. Re seat the dev ice data and po wer cables. Replace the de vi ce data cable .
Servi ce Ref ere nce Guide 4316 7 2 -001 C–3 POST Er ror Me ss a ge s Mic r ocode Err or BIOS could not f ind or load the CPU mi cr ocode update to the CP U . Ensur e the sy stem boar d BIOS supports the p rocessor . Change s yst em board jumper on JP2 t o pins 2 -3 (Unlock), then flash the s y stem BIOS .
C–4 4316 7 2 -001 Ser vi ce Refe rence Guide POST Er ror Me ss a ge s CMOS Chec ksum B ad CMOS c ontents f ailed the Checksum c heck. Re start the c omputer , u se the F10 K ey to access Computer Set up . Select Load Default Settings > Sav e and Exit .
Servi ce Re fer ence Guide 4 316 7 2 -001 D–1 D T roubl eshootin g Wit hou t Di a gnos tic s Preliminar y C h ec klist This section describes some simple, preliminary tests and guidelines for troubleshooting the computer without using the diagnostics.
D–2 4316 7 2 -001 Ser vi ce Refe rence Guide T r oubleshooting Without Diagno stics Solving G eneral Prob l ems Y ou may be able to easily resolv e the minor problems described in this section.
Servi ce Ref ere nce Guide 4316 7 2 -001 D–3 T r oubleshooting Without Di agnostics Comput er date and time displa y is incorrec t. RTC ( rea l - ti m e c lo c k ) battery may need to be re placed. ✎ MConnecting the computer to a live AC outlet prolongs the life of the RTC battery.
D–4 4316 7 2 -001 Ser vi ce Refe rence Guide T r oubleshooting Without Diagno stics Some sof tware applicati ons, espec iall y gam es, are stressful on the graphics subs ystem .
Servi ce Ref ere nce Guide 4316 7 2 -001 D–5 T r oubleshooting Without Di agnostics Solvin g H a rdware Insta ll a tio n Probl e ms Y ou may need to reconfigure the computer when you add or remo ve hardware, such as an additional dri ve or expansion card.
D–6 4316 7 2 -001 Ser vi ce Refe rence Guide T r oubleshooting Without Diagno stics Interpreting Dia gnostic Li ghts an d Audibl e Cod es This section co vers the front panel LED codes as well as the audible codes that may occur before or during POST that do not necessarily ha ve an error code or te xt message associated with them.
Servi ce Ref ere nce Guide 4316 7 2 -001 D–7 T r oubleshooting Without Di agnostics Solving Dis pl ay Pr ob lems Solving Displ ay Problems Problem Caus e Solution Blank sc reen (no v ideo). The cable connecti ons are not cor rect . Check the ca ble connections fr om the monitor to the computer and to the electr ical outlet .
D–8 4316 7 2 -001 Ser vi ce Refe rence Guide T r oubleshooting Without Diagno stics P ow er LED flashes R ed six times, once e very second, f ollo we d by a tw o se cond pause , and the computer beeps si x times. Pr e -v ideo graphics err or . Fo r s ys te m s w i t h a g ra p h ic s c a rd : 1.
Servi ce Ref ere nce Guide 4316 7 2 -001 D–9 T r oubleshooting Without Di agnostics High p itched nois e coming fr om inside a f lat panel monitor . Bri ghtness and/or contrast set tin gs are too high . Lo w er brightne ss and/or contrast sett ings.
D–10 4 316 7 2 -001 Servi ce Re fer ence Guide T r oubleshooting Without Diagno stics Solving Audio Problems Solving Audio Problems Problem Caus e Solution Soun d does not co me out of the speak er or headphones . So f t ware vo l u m e c o n t ro l is turned do wn .
Servi ce Ref ere nce Guide 4316 7 2 -001 D–11 T r oubleshooting Without Di agnostics Noise or no sound comes out of the speak ers or headphones . 1. If using digital speaker s that hav e a ster eo j.
D–12 4 316 7 2 -001 Servi ce Re fer ence Guide T r oubleshooting Without Diagno stics Solving Printer Proble ms Solving Printer Problems Problem Caus e Solution Printe r will not print . Printe r is not turned on and online . T urn the printer on and mak e sur e it is online .
Servi ce Ref ere nce Guide 4316 7 2 -001 D–13 T r oubleshooting Without Di agnostics Solving K e yboar d and Mous e Problems Solving K e yboard Problems Problem Caus e Solution K e yboar d commands and typing ar e not r ecogni z ed by the computer .
D–14 4 316 7 2 -001 Servi ce Re fer ence Guide T r oubleshooting Without Diagno stics Solving N et w ork Problems These guidelines do not discuss the process of deb ugging the network cabling. Solving Net work Problems Problem Cause Solution Wa ke - o n - L A N f e a t u r e i s not functi oning.
Servi ce Ref ere nce Guide 4316 7 2 -001 D–15 T r oubleshooting Without Di agnostics Diagnos tics pass es, but the computer does not communicate w ith the network . (continued) The netw ork contr oller is not conf igured f or this computer . Select the Netw ork icon in t he Control P anel and confi gure t he networ k contr oller .
D–16 4 316 7 2 -001 Servi ce Re fer ence Guide T r oubleshooting Without Diagno stics Solving Mem or y Problems Ä CAUT ION: F or those sy stems that support EC C memory , HP does not support mix ing E CC and non-EC C memory . Other wise , the s ystem w ill not boot the oper ating sy stem.
Servi ce Ref ere nce Guide 4316 7 2 -001 D–17 T r oubleshooting Without Di agnostics Solving Processor Probl ems . Solving Proce s sor Problems Problem Caus e Solution P oor performance is ex pe ri e nc e d. Processor i s hot. 1. Mak e sur e the airflo w to the computer is not block ed.
D–18 4 316 7 2 -001 Servi ce Re fer ence Guide T r oubleshooting Without Diagno stics Solving CD-ROM and D VD Problems Solving CD-ROM and D VD Problems Problem Caus e Solution S yste m will not boot f rom CD-RO M or DVD dr iv e. The CD -ROM or DVD boot is not enabled thr ough the Compute r Setup util ity .
Servi ce Ref ere nce Guide 4316 7 2 -001 D–19 T r oubleshooting Without Di agnostics Solving Driv e K e y Problems Solving Internet Acces s Problems Recor ding audio CDs is diffi cult or impos sible. W rong or poor quality media type . 1 . T r y u s i n g a s l ower rec o rd i n g spee d.
D–20 4 316 7 2 -001 Servi ce Re fer ence Guide T r oubleshooting Without Diagno stics Unable to connect to the Inter net. (contin ued ) Cable/DSL service is not av ailable or has been interrupted d ue to bad weather . T r y connecting to the Inter net at a later time or contact y our ISP .
Servi ce Ref ere nce Guide 4316 7 2 -001 D–21 T r oubleshooting Without Di agnostics Internet takes too long to do wnload W eb sites. Modem is not set up pr oper ly . V erify that the corr ect modem speed and COM port ar e selected . F or Windo ws XP 1.
D–2 2 4316 7 2 -001 Ser vi ce Refe rence Guide T r oubleshooting Without Diagno stics Dia gnostic Front P anel LEDs an d Audible Cod es Diagnostic Front P anel LEDs and Au dible Codes Activity Beeps Pos s i b l e C a u s e Rec ommended Ac tion Green P o w er LED On.
Servi ce Ref ere nce Guide 4316 7 2 -001 D–2 3 T r oubleshooting Without Di agnostics Red P ower L ED flashes 8 time s, one ever y s ec o n d, f ollo w ed by a 2 secon d pause. Also 8 simultaneous beeps w ill be heard . 8 Inv alid R OM based on bad che ck s um.
D – 24 4 3 1 672- 0 0 1 S e r v i c e R e f e r e n c e G u i d e T r oubleshooting Without Diagno stics Sys t e m do es no t po wer on and LEDs ar e not flashing . None Sys t e m u n a b l e t o po wer on . Pr ess and hold the po we r button for less th an 4 seco nds.
Servi ce Ref ere nce Guide 4316 7 2 -001 D–2 5 T r oubleshooting Without Di agnostics Res to rin g t h e Sof t ware The W indows op erating system and software ca n be restored to the original state that they were when you purchased the co mputer by using the Restor e Plus! CD.
D–2 6 4316 7 2 -001 Ser vi ce Refe rence Guide T r oubleshooting Without Diagno stics Contacti ng Cust omer Support For help and service, contac t an authorized reselle r or dealer .
Servi ce Ref ere nce Guide 4 316 7 2 -001 E–1 E Memory Computers equipped with Intel-based processors co me with double data rate sy nchronous dynamic random acce ss memory (DDR2) dual inlin e memory modules (DIMMs). The memory sock ets on the system bo ard can be populated with up to four industry-standard DIMMs.
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 HP (Hewlett-Packard) dx2708 MT 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 HP (Hewlett-Packard) dx2708 MT - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso HP (Hewlett-Packard) dx2708 MT imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul HP (Hewlett-Packard) dx2708 MT ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il HP (Hewlett-Packard) dx2708 MT, 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 HP (Hewlett-Packard) dx2708 MT.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il HP (Hewlett-Packard) dx2708 MT. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo HP (Hewlett-Packard) dx2708 MT 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.
