IBM 6151 Maintenance And Service Manual page 322

Step 2
1.
Use the "Removal and Replacement Procedures" on
page 9-042-1, to install the original module on the IBM PC
Graphics Memory Expansion Card again, but do not install the
card on the IBM PC Enhanced Graphics Adapter.
2. Install the IBM PC Enhanced Graphics Adapter in the system
unit without the IBM PC Graphics Memory Expansion Card.
3. Run the Display Checkout.
TESTING COMPLETE
Preas Enter to continue.
DIAC-2
WERE YOU ABLE TO LOAD AND RUN THE REPAIR
CHECKOUT AND DID THE "NO TROUBLE WAS FOUND"
MESSAGE DISPLAY?
NO The IBM PC Enhanced Graphics Adapter is failing.
1.
Use the "Removal and Replacement Procedures" on
page 9-042-1, to exchange the IBM PC Enhanced
Graphics Adapter. Be sure to install the IBM PC
Graphics Memory Expansion Card on the new adapter.
2. Run the Display Checkout.
YES Continue on the next page.
3-4200-2 Service Manual