Lenovo ThinkPad X60s Hardware Maintenance Manual - Page 95
System, board, lower, assembly, label
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Removing and replacing a FRU 1200 System board and lower case assembly with label For access, remove following FRUs, in order: v "1010 Battery pack" on page 56 v "1020 Hard disk drive (2.5-inch) and HDD rubber rails" on page 57 v "1030 DIMM cover" on page 59 v "1050 Keyboard" on page 61 v "1060 Upper case" on page 65 v "1080 Hard disk (1.8-inch)" on page 69 v "1090 Hard disk housing (1.8-inch)" on page 70 v "1100 Wireless WAN PCI Express Mini card" on page 71 or "1110 Intel Turbo Memory card" on page 73 v "1120 Wireless LAN PCI Express Mini card" on page 74 v "1130 MDC" on page 77 v "1150 Second Fan" on page 79 v "1160 Speaker" on page 80 v "1170 DC-in and RJ-11 connectors" on page 81 v "1180 LCD assembly" on page 82 v "1190 Hard disk sub-card" on page 88 Important notices for handling the system board When handling the system board, bear the following in mind. v The system board has an accelerometer, which can be broken by applying several thousands of G-forces. Note: Dropping a system board from a height of as little as 6 inches so that it falls flat on a hard bench can subject the accelerometer to as much as 6,000 G's of shock. v Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite. v If a system board is dropped, you must test it, using PC-Doctor for DOS, to make sure that the HDD Active Protection still functions (see below). Note: If the test shows that HDD Active Protection is not functioning, be sure to document the drop in any reject report, and replace the system board. v Avoid rough handling of any kind. v At every point in the process, be sure not to drop or stack the system board. v If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or conductive corrugated material. After replacing the system board, run PC-Doctor for DOS to make sure that HDD Active Protection still functions. The procedure is as follows: 1. Place the computer on a horizontal surface. 2. Run Diagnostics --> ThinkPad Devices --> HDD Active Protection Test. Attention: Do not apply physical shock to the computer while the test is running. ThinkPad X60, X60s, X61, and X61s 89