Replacing The System Board (Types 8453, 8454, 8455, 8456, And 8457) - Lenovo J100 Hardware Maintenance Manual

10. Position the system board so that the screws holes are aligned and install the
11. Install the hard disk drive. Make sure to route the power supply cable for the
12. Reconnect all other power supply cables to the system board and the drives.
13. Replace the drive bay assembly. See "Removing and replacing the drive bay
14. Go to "Completing the FRU replacement." on page 143.

Replacing the system board (Types 8453, 8454, 8455, 8456, and 8457)

Note: When replacing the system board, a new retention bracket for the
10. Disconnect the heat sink and fan assembly cable from the system board. See
system board screws.
system board underneath the hard disk drive. See "Replacing the hard disk
drive" on page 139.
See "Identifying parts on the system board" on page 116. Make sure the cables
are correctly routed.
assembly" on page 119.
microprocessor heat sink is required. Make sure you have a new retention
bracket before beginning this procedure.
1. Remove the cover. See "Removing the cover" on page 114
2. Lift the fan duct off the heat sink fan.
3. Remove any adapter cards installed in the PCI connectors. See "Replacing a
PCI adapter" on page 121.
4. Remove the drive bay assembly. See "Removing and replacing the drive bay
assembly" on page 119.
5. Take note of the location of all cable connections on the system board and
disconnect all cables. See "Identifying parts on the system board" on page 116.
6. Remove the hard disk drive. See "Replacing the hard disk drive" on page 139.
7. Remove the screws that secure the system board to the chassis.
8. Lift the system board out of the chassis.
9. Remove the memory modules from the failing system board and install them
in the same location on the new system board.
"Identifying parts on the system board" on page 116.
Chapter 9. Replacing FRUs (Types 8453, 8454, 8455, 8456, 8457, 8458, 8459, and 8460)
125