IBM PS/2 90 XP 486 Hardware Maintenance Reference page 102

17.8 1040 Adapters and Adapter Guide
Cover and Front Bezel
Note: Before you replace an adapter, note the slot location on the system
board. Put the replacement adapter into that slot.
install the replacement adapter in a different slot location, run
Automatic configuration from the hard disk drive.
IBM PS/2 Model 90 XP 486 and 95 XP 486 HMR
1040 Adapters and Adapter Guide
(1005)
PICTURE 40
¦ Copyright IBM Corp. 1990, 1992
17.8 - 1
If you have to