IBM 7026-H80 - RS/6000 - 256 MB RAM Service Manual page 148

Service guide
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Step 1540-24
1. Turn off the power.
2. The item just replaced fixed the problem.
3. If a display adapter with keyboard and mouse were used, reinstall the display
adapter card, keyboard, and mouse.
4. Reconnect the diskette drive cable to the primary I/O drawer backplane.
5. Connect all the boot devices to the SCSI cable.
6. Plug in all adapters that were previously removed but not reinstalled.
7. Reconnect the primary I/O drawer ac power cables that were previously
disconnected.
Reconfigure the system to its original condition. Go to "Map 0410: Repair Checkout" in
the Diagnostics Information for Multiple Bus Systems .
Step 1540-25
If the Please Define System Console screen does display and all attached devices and
adapters are listed, the problem is with the secondary I/O drawer. Turn the power off.
Reconnect the secondary I/O drawer.
Note: The I/O drawers should be cabled as shown in "Cabling the CEC Drawer,
Go to "Step 1540-27" on page 131.
130
Service Guide
Primary I/O Drawer, and Secondary I/O Drawer" on page 48. Be sure to look at
RIO cables, SPCN cables, V/S COMM cables, and JTAG cables.

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