6-20 Minitower Repair
4. Separate the ISA/PCI-Bus backboard from the bracket by removing the two
screws shown Figure Section 6-7.
Figure Section 6-7 ISA/PCI-Bus Backboard Screws
System Board Removal
Remove the system board per Figure Section 6-9 and the following steps.
1. Remove the following components as previously described.
n top cover
n expansion slot boards
n ISA/PCI-Bus backboard
n 3 1/2-inch drive cage
n 3 1/2-inch diskette drive bracket
n SIMMs (if installed)
2. Remove and label all cables connected to the system board Figure Section 6-9
provides the general locations of the connectors for the system board. Appendix
A provides the pin assignments for each connector; Table Section 6-1 identifies
the correct connector.
NOTE: Remove the optional video DRAM
chips if installed, see Section 3, Options.
Backboard
Screws
Chassis
Support Bracket
ISA/PCI-Bus
Backboard