IBM H Series Installation And Service Manual page 83

Step 1540-11
The system is working correctly with this configuration. One of the SCSI devices that
you disconnected may be defective.
1. Make sure the diagnostic CD-ROM is inserted into the CD-ROM drive.
2. Turn the power off and remove the power cable.
3. Connect the signal and power connectors to one of the SCSI devices (CD-ROM
drive, tape drive, disk drive, etc.). Do not connect the signal and power connec-
tors to the hot-swap bay backplanes at this time.
4. Plug in the power cable and wait for OK on the operator panel display.
5. Turn the power on.
6. After the keyboard indicator is displayed, press the F5 key on the directly-
attached keyboard or the number 5 key on an ASCII terminal keyboard.
7. Enter the appropriate password if prompted to do so.
Is the "Please define the System Console" screen displayed?
NO One of the FRUs remaining in the system unit is defective.
In the following order, exchange the FRUs that have not been exchanged:
1. SCSI cable
2. Last SCSI device connected (CD-ROM drive, tape drive, disk drive,
etc.)
3. I/O board (See notes on page 2-1.)
4. Processor card(s)
5. Power Supply
Repeat this step until the defective FRU is identified or all the FRUs have
been exchanged.
If the symptom did not change and all the FRUs have been exchanged,
call your service support person for assistance.
If the symptom has changed, check for loose cards, cables, and obvious
problems. If you do not find a problem return to "Step 1540-1" on
page 2-38 in this MAP and follow the instructions for the new symptom.
Chapter 2. Maintenance Analysis Procedures
2-49