IBM pSeries 630 6C4 Service Manual page 228

Step 5
The CD-ROM drive, IDE cable, graphics adapter (if installed), or the system board is most likely defective.
A TTY terminal attached to the serial port also can be used to determine if the graphics adapter is causing
the problem. This is done by removing the graphics adapter, attaching a TTY to the serial port, and
retrying standalone diagnostics. If the standalone diagnostics load, replace the graphics adapter.
1. Replace the CD-ROM drive.
2. Replace the IDE cable.
3. Replace the system board.
4. If you replaced the indicated FRUs and the problem is still not corrected, or the above descriptions did
not address your particular situation, go to "MAP 1548: Processor Subsystem Problem Isolation" on
page 139.
5. Go to "MAP 0410: Repair Checkout" in RS/6000 Eserver pSeries Diagnostic Information for Multiple
Bus Systems.
208 Eserver pSeries 630 Model 6C4 and Model 6E4 Service Guide