IBM 6151 Maintenance And Service Manual page 158

Step 26
Determine the type of display adapter the display is attached to.
Look for the adapter type in the table below.
Type Display Adapter
SRN
Enhanced Graphics Adapter 12-410
Advanced Monochrome Graphics Display Adapter 12-430
IBM Monochrome Display and Printer Adapter 12-490
Advanced Color Graphics Display Adapter 12-450
Extended Monochrome Graphics Display Adapter
12-470
IBM IBM Megapel Display Adapter 12-4AO-4BO
DID YOU FIND THE ADAPTER IN THE TABLE?
YES Record the SRN; then go to "Step 33" on page 3-0030-33.
NO See "Loading Additional Device Drivers" on page 2-9; then
go to "Step 3" on page 3-0030-3. If you don't have an
additional device driver diskette; then the display adapter
is not supported in this documentation.
3-0030-26 Service Manual