IBM H Series Installation And Service Manual page 73

Step 1540-2
1. Turn the power off.
2. If you have not already done so, configure the Service Processor with the
instructions in 6 on page 2-37 and then return here and continue.
3. Exit Service Processor Menus and remove the power cable.
4. Disconnect all external cables (parallel, serial 1, serial 2, serial 3, keyboard,
mouse, AUI/RJ45 ethernet, SCSI, etc.)
5. Place the drawer in the rear service position, as described in Removal and
Replacement Procedures "Rear Service Position".
6. Record the slot numbers of the ISA and PCI adapters. Label and record the
location of any cables attached to the adapters. Disconnect any cables attached
to the adapters and remove all the adapters.
7. Remove the second processor card, (if present).
Model H50 slot J5, J6.
Model H70 slot J8.
(If second processor card removed, ensure first processor card is in processor
card connector #1.)
8. Record the slot numbers of the memory modules. Remove all installed memory
modules except for one pair from the first memory card.
Note: Memory modules must be installed in pairs and in the correct slots. For
example, install the pair in J1 and J2.
9. Remove the second memory card, (if present).
Model H50 slot J13.
Model H70 slot J2.
10. Disconnect the SCSI cables from the internal SCSI connectors on the I/O board.
Model H50 connectors J25 and J30.
Model H70 connectors J3 and J12.
11. Disconnect the signal and power connectors from the hot-swap bay backplanes.
12. Remove the hot-swap disk drive(s) from the hot-swap bays.
13. Disconnect the signal and power connectors from all the SCSI devices except
the CD-ROM drive.
Chapter 2. Maintenance Analysis Procedures
2-39