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Hardware Maintenance Manual 
Types 8084, 8085, 8126, 8147, 8148, 8149 
Types 8174, 8175, 8176, 8177, 8178, 8179 
                                                                                                                                                                                                                                                                                                                                                                                                
                    
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                           Hardware Maintenance Manual  Types 8084, 8085, 8126, 8147, 8148, 8149  Types 8174, 8175, 8176, 8177, 8178, 8179                                                                                                                                                                                                                                                                                                                                                                                                  
                    
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                          Note: Before using this information and the product it supports, be sure to read the  information under “Notices,” on page 219.    Sixth Edition (August 2005)  © Copyright Lenovo 2005.  Portions © Copyright International Business Machines Corporation 2005.  All rights reserved.  U.S. GOVERNMENT USERS – RESTRICTED RIGHTS: Our products and/or services are provided with  RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to the GSA ADP Schedule  contract with Lenovo Gr
                    
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                          Contents  Setting, changing, and deleting a password . . .57  Chapter 1. About this manual  . . . . .1  Using Security Profile by Device  . . . . . . .57  Important Safety Information . . . . . . . . .1  Selecting a startup device . . . . . . . . . .58  Strategy for replacing FRUs for CTO, CMV, and GAV  Selecting a temporary startup device  . . . . .58  products . . . . . . . . . . . . . . . .2  Changing the startup device sequence  . . . .58  Product definition  . . . . . . . . . . .2  Advanc
                    
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                          Locating components . . . . . . . . . . . 123 Security features  . . . . . . . . . . . . 213  Identifying parts on the system board  . . . . . 124 Hardware controlled Passwords  . . . . . . 213  Removing and replacing memory  . . . . . . 125 Operating system password  . . . . . . . 213  Removing and replacing a PCI adapter . . . . . 125 Vital product data . . . . . . . . . . . 213  Removing and replacing the battery . . . . . . 127 Management Information Format (MIF)  . . . 213  Removing and r
                    
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                          Chapter 1. About this manual  ®  This manual contains service and reference information for ThinkCentre computers listed on the cover. It is intended only for trained servicers who are  familiar with Lenovo computer products.  Before servicing a Lenovo product, be sure to read the Safety Information. See  Chapter 2, “Safety information,” on page 5.  The Symptom-to-FRU Index and Additional Service Information chapters are not  specific to any machine type and are applicable to all ThinkCentre c
                    
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                          Strategy for replacing FRUs for CTO, CMV, and GAV products  Product definition  Dynamic Configure To Order (CTO)  This provides the ability for a customer to configure a Lenovo solution  from an eSite, and have this configuration sent to fulfillment, where it is  built and shipped directly to the customer. The machine label, PC  Entitlement Warehouse (PEW), eSupport, and the HMM will include these  products as the 4-digit machine type (MT) and 3-digit model, where model  = ’CTO’ (Example: 8129
                    
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                          4.   Under Warranty Information, type the MT and Serial number and click  Submit.  The list of key commodities is returned in the PEW record under Component  Information. v   Business Partners using Eclaim will access PEW when performing Entitlement  Lookup. Business Partners will enter Loc ID, MT and Serial, and the key  commodities will be returned in the Eclaim record under System Details.  v   Authorized Lenovo Business Partners can access Eclaim at the following Web  site:  http://wca.ecl
                    
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                          So, if the parts are not compliant originally, replacement parts can also be  noncompliant, but in all cases, if the parts are compliant, the replacement parts  must also be compliant.  Lenovo plans to transition to RoHS compliance well before the implementation  date and expects its suppliers to be ready to support Lenovo’s requirements and  schedule. Products sold in 2005, will contain some RoHS compliant FRUs. The  following statement pertains to these products and any product Lenovo produc
                    
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                          Chapter 2. Safety information  This chapter contains the safety information that you need to be familiar with  before servicing a computer.  General safety  Follow these rules to ensure general safety:  v   Observe good housekeeping in the area of the machines during and after  maintenance.  v   When lifting any heavy object:  1.   Ensure you can stand safely without slipping.  2.   Distribute the weight of the object equally between your feet.  3.   Use a slow lifting force. Never move sudden
                    
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                          CAUTION:  Electrical current from power, telephone, and communication cables can be  hazardous. To avoid personal injury or equipment damage, disconnect the  attached power cords, telecommunication systems, networks, and modems before  you open the server/workstation covers, unless instructed otherwise in the  installation and configuration procedures.  Observe the following rules when working on electrical equipment.  Important:  Use only approved tools and test equipment. Some hand tools hav
                    
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                          v   Always look carefully for possible hazards in your work area. Examples of these  hazards are moist floors, nongrounded power extension cables, power surges,  and missing safety grounds.  v   Do not touch live electrical circuits with the reflective surface of a plastic dental  mirror. The surface is conductive; such touching can cause personal injury and  machine damage.  v   Do not service the following parts with the power on when they are removed  from their normal operating places in a
                    
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                          5.   Check for any obvious alterations. Use good judgment as to the safety of any  alterations.  6.   Check inside the unit for any obvious unsafe conditions, such as metal filings,  contamination, water or other liquids, or signs of fire or smoke damage.  7.   Check for worn, frayed, or pinched cables.  8.   Check that the power-supply cover fasteners (screws or rivets) have not been  removed or tampered with. Handling electrostatic discharge-sensitive devices  Any computer part containing tr
                    
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                          Safety notices (multi-lingual translations)  The caution and danger safety notices in this section are provided in the following  languages:  v   English  v   Arabic  v   Brazilian/Portuguese  v   Chinese (simplified)  v   Chinese (traditional)  v   French  v   German  v   Hebrew  v   Italian  v   Korean  v   Spanish         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 i
                    
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                          CAUTION:  When replacing the lithium battery, use only Part Number 33F8354 or an  equivalent type 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.  Do not:  v   Throw or immerse into water  v   Heat to more than 100°C (212°F)  v   Repair or disassemble Dispose of the battery as r
                    
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                          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. The device  also might have more than one power cord. To remove all electrical current from  the device, ensure that all power cords are disconnected from the power source.           CAUTION:  Do not place any object weighing more than 82 kg (180 lbs.) on top of  rack-mounted devices.         Chapter 2. Safety information 11 2 1              
                    
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                        Chapter 2. Safety information 13                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
                    
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                          ≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs)                                            14 Hardware Maintenance Manual 2 1