Manuale d’uso / di manutenzione del prodotto 6446 del fabbricante Lenovo
Vai alla pagina of 112
ThinkS e rv e r RD 1 20 Ty p e s 6 444 , 6 4 45, 6 446, an d 64 4 7 In stall a ti o n Gu i d e.
.
ThinkS e rv e r RD 1 20 Ty p e s 6 444 , 6 4 45, 6 446, an d 64 4 7 In stall a ti o n Gu i d e.
Note: Before using this information and the product it supports, read the general information in Appendix B, “Notices,” on page 85 and the Warranty and Support Information document on the Lenovo ThinkServer Documentation DVD. First Edition (October 2008) © Copyright Lenovo 2008.
Contents Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . .v Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . .1 The Lenovo ThinkServer Documentation DVD . . . . . . . . . . . . . .2 Hardware and software requirements . . .
POST error codes . . . . . . . . . . . . . . . . . . . . . . . .6 3 EasyStartup problems . . . . . . . . . . . . . . . . . . . . . .6 4 T roubleshooting tables . . . . . . . . . . . . . . . . . . . . . .6 5 CD-RW/DVD drive problems . . . . . . . . . .
Safety Before installing this product, read the Safety Information. Antes de instalar este produto, leia as Informações de Segurança. Pred instal ací tohoto produktu si prectete prír uc ku bezpecnostních instr ukcí. Læs sikkerhedsforskrifterne, før du installerer dette produkt.
Important: Each caution and danger statement in this document is labeled with a number . This number is used to cross reference an English-language caution or danger statement with translated versions of the caution or danger statement in the Safety Information document.
Statement 1: DANGER Electrical current from power , telephone, and communication cables is hazardous. To avoid a shock hazard: v Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm.
Statement 2: CAUTION: When replacing the lithium battery , use only the battery recommended by the manufacturer . If your system has a module containing a lithium battery , replace it only with the same module type made by the same manufacturer . The battery contains lithium and can explode if not properly used, handled, or disposed of.
Statement 3: CAUTION: When laser products (such as CD drives, DVD drives, fiber optic devices, or transmitters) are installed, note the following: v Do not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation.
Statement 4: ≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb) CAUTION: Use safe practices when lifting. Statement 5: CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device.
Statement 8: CAUTION: Never remove the cover on a power supply or any part that has the following label attached. Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components.
This server is suitable for use on an IT power-distribution system whose maximum phase-to-phase voltage is 240 V under any distribution fault condition. Important: This product is not suitable for use with visual display workplace devices according to Clause 2 of the German Ordinance for Work with V isual Display Units.
Chapter 1. Introduction This Installation Guide contains instructions for setting up your Lenovo ® ThinkServer ™ RD120 T ypes 6444, 6445, 6446, and 6447 server and basic instructions for installing some optional devices.
2. Enter your product number (machine type and model number) or select Servers from the Select your product list. 3. Select Servers from the Brand list.
v Microsoft ® Windows ® XP , Windows 2000, or Red Hat Linux v 100 MHz microprocessor v 32 MB of RAM v Adobe ® Acrobat ® Reader 3.0 (or later) or xpdf, which comes with Linux operating systems Noti.
T able 1. Features and specifications Microprocessor: v Intel ® Xeon ™ FC-LGA 771 dual-core with 4 MB Level-2 cache or quad-core with 8 MB (2x4 MB) Level-2 cache v Support for up to two microproces.
Major components of the server Blue on a component indicates touch points, where you can grip the component to remove it from or install it in the server , open or close a latch, and so on.
4 Power backplane 14 T ape drive space filler 5 2.5-inch drive cage with hard disk drive backplane 15 T ape drive filler 6 2.5-inch hard disk drive 16 CD/DVD media backplane 7 2.5-inch filler panel 17 Microprocessor air baffle 8 3.
Chapter 2. Installing optional devices This chapter provides basic instructions for installing optional hardware devices in the server . These instructions are intended for users who are experienced with setting up Lenovo ® server hardware. If you need more detailed instructions, see the User Guide on the ThinkServer Documentation DVD.
v Yo u do not have to turn off the server to install or replace hot-swap fans, redundant hot-swap ac power supplies, or hot-plug Universal Serial Bus (USB) devices. However , you must turn off the server before performing any steps that involve removing or installing adapter cables or non-hot-swap optional devices or components.
The server supports hot-plug, hot-add, and hot-swap devices and is designed to operate safely while it is turned on and the cover is removed. Follow these guidelines when you work inside a server that is turned on: v Avoid wearing loose-fitting clothing on your forearms.
2. If you are planning to install or remove a microprocessor , memory module, PCI adapter , battery , or other non-hot-swap optional device, turn off the server and all attached devices and disconnect all external cables and power cords (see “T urning off the server” on page 39).
T able 2. DIMM installation sequence Pair DIMM connectors 1 1 and 4 2 7 and 10 3 2 and 5 4 8 and 11 5 3 and 6 6 9 and 12 Note: When only one pair of DIMMs is installed in the server and the BIOS code level is version 1.04 (GGE127A) or later , you can improve performance by installing the DIMMs in connectors 1 and 7 instead of 1 and 4.
v The server supports online-spare memory . This feature disables the failed memory from the system configuration and activates an online-spare pair of DIMMs to replace the failed active DIMM pair . See “Online-spare memory” on page 14 for more information about online-spare memory and the DIMM configuration that is required.
1 DIMM air baffle 3 Finger hole 2 Riser card assembly 4 Release ring 4. Remove the riser-card assembly . 5. Remove the DIMM air baffle. 6. Open the retaining clip on each end of the DIMM connector . 7. T ouch the static-protective package that contains the DIMM to any unpainted metal surface on the outside of the server .
switches from the active pair to the mirroring pair . Memory mirroring reduces the amount of available memory . Enable memory mirroring through the Configuration/Setup Utility program.
In the configuration that you use, install the largest DIMMs first. T able 5. Online-spare DIMM configurations, basic scheme Number of DIMMs DIMM connectors Results 4 1 and 4 (largest DIMMs) 2 and 5 O.
Installing a hard disk drive Locate the documentation that comes with the hard disk drive and follow those instructions in addition to the instructions in this chapter . Important: Do not install a SCSI hard disk drive in this server; install only SAS hard disk drives.
2.5-inch drives To install a drive in a hot-swap bay , complete the following steps: Attention: To maintain proper system cooling, do not operate the server for more than 10 minutes without either a drive or a filler panel installed in each bay . 1. Read the safety information that begins on page v, and “Installation guidelines” on page 7.
Installing an additional microprocessor The following notes describe the type of microprocessor that the server supports and other information that you must consider when installing a microprocessor: .
1 Microprocessor 1 3 V oltage regulator module connector 2 Microprocessor 2 The following illustration shows how to install the second microprocessor on the system board.
Note: For simplicity , certain components are not shown in this illustration. 1 Heat sink 3 Microprocessor 2 Heat sink filler 4 Microprocessor socket dust cover Attention: v A startup (boot) processor must always be installed in microprocessor connector 1 on the system board.
Attention: When you handle static-sensitive devices, take precautions to avoid damage from static electricity . For details about handling these devices, see “Handling static-sensitive devices” on page 9. 1 Microprocessor air baffle 2 Finger holes 4.
a. T ouch the static-protective package that contains the microprocessor to any unpainted metal surface on the server . Then, remove the microprocessor from the package. b. Remove the protective dust cover 1 , tape, or label from the surface of the microprocessor socket, if one is present.
8. Install a heat sink on the microprocessor . Attention: Do not touch the thermal grease 1 on the bottom of the heat sink 2 or set down the heat sink after you remove the plastic cover .
Installing an adapter 1 Expansion slot cover 5 Low-profile PCI Express adapter 2 Raiser-card assembly 6 Expansion slot cover 3 Expansion slot 1 7 Expansion slot 2 4 Adapter 8 Adapter The following illustration shows the locations of the adapter expansion slots.
v Yo u can install a full-height, half-length adapter in slot 2 on the PCI riser card and a full-height, full-length adapter in slot 1 on the PCI riser card. v An optional Remote Supervisor Adapter II SlimLine can be installed only in a dedicated slot on the system board.
1 Access holes 2 Release tabs 4. Slide the expansion-slot cover out of the PCI low-profile expansion slot or PCI riser-card assembly expansion slot. 5. Install the adapter . The following illustration shows how to install an adapter in a PCI slot on the riser-card assembly .
1 Hard disk drive cable connector 4 - 7 4 ServeRAID-MR10i SAS/SA T A controller 2 Hard disk drive cable connector 0 - 3 5 Hard disk drive cable 4 - 7 3 Battery 6 Hard disk drive cable 0 - 3 7. Connect any required cables to the adapter .
1 Retainer bracket 3 Remote Supervisor Adapter II SlimLine 2 Connector 4 Latch bracket To install a Remote Supervisor Adapter II SlimLine, complete the following steps: 1. Read the safety information that begins on page v and “Installation guidelines” on page 7.
Replacing the ServeRAID SAS controller A ServeRAID SAS controller can be installed only in a dedicated slot on the system board. The server comes with a ServeRAID-8k-l SAS Controller installed. Note: The ServeRAID-8k-l SAS Controller does not have a battery .
1 RAID controller 4 Battery mounting tabs 2 Battery cable 5 Battery mounting clips 3 Battery 6 Battery cable connector 9. T urn the new ServeRAID-8k SAS controller so that the keys on the bottom edge align correctly with the connector .
Attention: v Install the server only in a rack cabinet that has perforated doors. v Do not leave open space above or below an installed server in your rack cabinet. To help prevent damage to server components, always install a filler panel to cover the open space and to help ensure proper air circulation.
2 USB 6 connector Rear view 1 Power cord connector 7 USB connector 2 2 Systems-management Ethernet connector 8 USB connector 1 3 Ethernet connector 9 Video co.
If you have installed or removed a hard disk drive, see “Using the RAID configuration programs” on page 44 for information about reconfiguring the disk arrays.
34 ThinkServer RD120 T ypes 6444, 6445, 6446, and 6447: Installation Guide.
Chapter 3. Server controls, LEDs, and power This section describes the controls and light-emitting diodes (LEDs) and how to turn the server on and off. Front view The following illustration shows the controls, light-emitting diodes (LEDs), and connectors on the front of the 3.
1 Power-on LED 5 System-error LED 2 Hard disk drive activity LED 6 System-locator LED 3 Information LED 7 Power-control button 4 Release latch The following c.
being rebuilt as part of a RAID configuration. When the LED is flashing rapidly (three flashes per second), it indicates that the controller is identifying the drive. CD/DVD-eject button: Press this button to release a CD or DVD from the CD-RW/DVD drive.
supplying adequate DC power to the system. During typical operation, both the ac and dc power LEDs are lit. For any other combination of LEDs, see the Hardware Maintenance Manual on the ThinkServer Documentation DVD.
Attention: In a dc power environment, only trained service personnel other than Lenovo service technicians are authorized to connect or disconnect power to the dc power supply .
1 2 Attention: In a dc power environment, only trained service personnel other than Lenovo service technicians are authorized to connect or disconnect power to the dc power supply .
Chapter 4. Configuring the server Lenovo provides a number of programs to assist you with getting your server up and running quickly . v ThinkServer EasyStartup program This program simplifies the process of installing the operating system and devices drivers.
you can download an ISO image of the DVD from http://www .lenovo.com/support. The program has a built-in help system and User Guide to answer any questions you might have. The program also provides compatibility notes to help you determine what server configurations and operating systems are supported by that specific version of the program.
a. Insert the USB device or diskette that contains the response file. b. Select Install the operating system using a preexisting response file. c. Click OK.
Note: The Ethernet controller for Ethernet connector 1 supports Serial over LAN (SOL). Yo u do not have to set any jumpers or configure the controllers. However , you must install a device driver to enable the operating system to address the controllers.
Starting the IBM ServeRAID Configuration Utility program To start the IBM ServeRAID Configuration Utility program, complete the following steps: 1. T urn on the server . 2. When the prompt <<< Press <CTRL><A> for IBM ServeRAID Configuration Utility! >>> appears, press Ctrl+A.
To run ServeRAID Manager in Startable CD mode, turn on the server; then, insert the CD into the CD-RW/DVD drive. If ServeRAID Manager detects an unconfigured controller and ready drives, the Configuration wizard starts. In the Configuration wizard, you can select express configuration or custom configuration.
drives). When you click an object in the ServeRAID Manager tree, information about that object appears in the right pane. To display a list of available actions for an object, click the object and click Actions .
a. Download the latest version of the BMC firmware from http:// www .lenovo.com/support/. b. Update the BMC firmware, following the instructions that come with the update file that you downloaded. 3. Configure the BIOS settings: a. When you are prompted to start the Configuration/Setup Utility program, restart the server and press F1.
Note: This procedure is based on a default installation of Red Hat Enterprise Linux ES 4. The file names, structures, and commands might be different for other versions of Red Hat Linux. To configure the general Linux parameters for SOL operation when you are using the Red Hat Enterprise Linux ES 4 operating system, complete the following steps.
Original /etc/lilo.conf contents prompt timeout=50 default=linux boot=/dev/hda map=/boot/map install=/boot/boot.b message=/boot/message linear image=/boot/vmlinuz-2.4.9-e.12smp label=linux initrd=/boot/initrd-2.4.9-e.12smp.img read-only root=/dev/hda6 image=/boot/vmlinuz-2.
Modified /etc/lilo.conf contents prompt timeout=50 default=linux-Monitor boot=/dev/hda #map=/boot/map install=/boot/boot.b #message=/boot/message linear # This will allow you to only Monitor the OS boot via SOL image=/boot/vmlinuz-2.4.9-e.12smp label=linux-Monitor initrd=/boot/initrd-2.
kernel /vmlinuz-2.4.9-e.12smp ro root=/dev/hda6 console=tty1 console=ttyS0,19200 initrd /initrd-2.4.9-e.12smp.img Note: The entry that begins with kernel /vmlinuz is shown with a line break after console=tty1 . In your file, the entire entry must all be on one line.
Modified /boot/grub/grub.conf contents #grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg.
a. Comment out the gfxmenu line by adding a # in front of the word gfxmenu . b. Add the following line before the first title line: # This will allow you to only Monitor the OS boot via SOL c. Append the following text to the first title line: SOL Monitor d.
Modified /boot/grub/menu.lst contents Notes root chainloader +1 title failsafe kernel (hd0,1)/boot/vmlinuz.shipped root=/dev/hda2 ide=nodma apm=off vga=normal nosmp 1 disableapic maxcpus=0 3 initrd (hd0,1)/boot/initrd.shipped Note 1: The kernel line is shown with a line break.
Original bootcfg program output Boot Loader Settings ---------------------------- timeout: 30 default: multi(0)disk(0)rdisk(0)partition(1)WINDOWS Boot Entries ---------------- Boot entry ID: 1 OS Frie.
3. Follow the prompts to complete the installation. The installation program prompts you for a TCP/IP port number and an IP address. Specify an IP address, if you want to limit the connection requests that will be accepted by the utility program. To accept connections from any server , type INADDR_ANY as the IP address.
The utility starts automatically when the server is started. Yo u can also locate the /ect/init.d directory to start the utility and use the following commands to manage the utility: smbridge status s.
v CLI (command-line interface) mode Use CLI mode to remotely perform power-management and system identification control functions over a LAN or serial port interface from a command-line interface. Use CLI mode also to remotely view the BMC system event log.
60 ThinkServer RD120 T ypes 6444, 6445, 6446, and 6447: Installation Guide.
Chapter 5. Solving problems This chapter provides basic troubleshooting information to help you solve some common problems that might occur while you are setting up the server .
Other beep codes See the Hardware Maintenance Manual on the ThinkServer Documentation DVD for information about other beep codes. 62 ThinkServer RD120 T ypes 6444, 6445, 6446, and 6447: Installation G.
POST error codes The following table provides an abbreviated list of the error codes that might appear during POST . See the Hardware Maintenance Manual on the ThinkServer Documentation DVD for more information about the POST error codes. To check for updated technical information, complete the following steps.
EasyStartup problems T able 8. ThinkServer EasyStartup DVD v Follow the suggested actions in the order in which they are listed in the Action Column until the problem is resolved.
T roubleshooting tables Use the troubleshooting tables to find solutions to problems that have identifiable symptoms. See the Hardware Maintenance Manual on the ThinkServer Documentation DVD for more detailed troubleshooting information.
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
Intermittent problems v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
USB keyboard, mouse, or pointing-device problems v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
Memory problems v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
Microprocessor problems v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
Monitor problems Some Lenovo monitors have their own self-tests. If you suspect a problem with your monitor , see the documentation that comes with the monitor for instructions for testing and adjusting the monitor . If you cannot diagnose the problem, call for service.
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
Optional-device problems v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
Universal Serial Bus (USB) port problems v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
Press the reset button to reset the server and run the power-on self-test (POST). Yo u might have to use a pen or the end of a straightened paper clip to press the button. The server is designed so that LEDs remain lit when the server is connected to a power source but is not turned on, provided that the power supply is operating correctly .
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
Appendix A. Getting help and technical assistance If you need help, service, or technical assistance or just want more information about Lenovo products, you will find a wide variety of sources available from Lenovo to assist you.
Getting help and information from the World W ide We b On the World Wide W eb, the Lenovo We b site has up-to-date information about Lenovo systems, optional devices, services, and support. For general information about Lenovo products or to purchase Lenovo products, go to http:// www .
Using other services If you travel with a Lenovo notebook computer or relocate your computer to a country where your desktop, notebook, or server machine type is sold, your computer might be eligible for International W arranty Service, which automatically entitles you to obtain warranty service throughout the warranty period.
84 ThinkServer RD120 T ypes 6444, 6445, 6446, and 6447: Installation Guide.
Appendix B. Notices Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local Lenovo representative for information on the products and services currently available in your area.
estimated through extrapolation. Actual results may vary . Users of this document should verify the applicable data for their specific environment. T rademarks The following terms are trademarks of Le.
Maximum memory might require replacement of the standard memory with an optional memory module. Lenovo makes no representation or warranties regarding non-Lenovo products and services, including but not limited to the implied warranties of merchantability and fitness for a particular purpose.
L ’etiquette du système respecte la Directive européenne 2002/96/EC en matière de Déchets des Equipements Electriques et Electroniques (DEEE), qui détermine les dispositions de retour et de recyclage applicables aux systèmes utilisés à travers l’Union européenne.
In accordance with the European Directive 2006/66/EC, batteries and accumulators are labeled to indicate that they are to be collected separately and recycled at end of life. The label on the battery may also include a chemical symbol for the metal concerned in the battery (Pb for lead, Hg for mercury , and Cd for cadmium).
Industry Canada Class A emission compliance statement This Class A digital apparatus complies with Canadian ICES-003. A vis de conformité à la réglementation d'Industrie Canada Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
Deutschland: Einhaltung des Gesetzes über die elektromagnetische V erträglichkeit von Betriebsmittein Dieses Produkt entspricht dem “Gesetz über die elektromagnetische V erträglichkeit von Betriebsmitteln” EMVG (früher “Gesetz über die elektromagnetische V erträglichkeit von Geräten”).
T aiwanese Class A warning statement Chinese Class A warning statement Korean Class A warning statement 92 ThinkServer RD120 T ypes 6444, 6445, 6446, and 6447: Installation Guide.
Index A ac power LED 37 acoustical noise emissions 4 adapter installing 24 Remote Supervisor Adapter II SlimLine 27 slot locations 25 system requirements 25 ASM processor 78 assistance, getting 81 att.
installing (continued) cover 31 DIMMs 10 hard disk drives 16 hot-swap drive 16, 17 microprocessor 18 RAID controller 29 Remote Supervisor Adapter II SlimLine 27 VRM 21 intermittent problems 67 L LEDs .
service processor , defined 38 size 4 software problems 76 solving problems 61 specifications 3 statements and notices 3 status LEDs 37 support, web site 81 system board connectors 24, 37 system-error.
96 ThinkServer RD120 T ypes 6444, 6445, 6446, and 6447: Installation Guide.
.
Part Number: 46U0862 Printed in USA (1P) P/N: 46U0862.
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 Lenovo 6446 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 Lenovo 6446 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Lenovo 6446 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Lenovo 6446 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Lenovo 6446, 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 Lenovo 6446.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Lenovo 6446. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Lenovo 6446 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.
