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Step 1540-23
1. Turn off the power.
2. Disconnect the I/O drawer AC power cables.
3. Replace the parts in the list below one at a time.
a. Primary I/O drawer backplane
b. Boot device
c. RIO adapter card
d. Power supply and redundant power supply (if present)
e. Fan controller card
f. Power distribution card
4. Reconnect the I/O drawer AC power cables.
5. Turn power on.
6. Boot standalone diagnostics from CD.
7. If the Please Define System Console screen is displayed, follow directions to select
the system console.
8. Use the Display Configuration and Resource List to list all attached devices and
adapters (refer to the Diagnostics Information for Multiple Bus Systems if
necessary).
9. Check that all attached devices and adapters are listed.
Did the Please define the System Console screen display and are all attached
devices and adapters listed?
NO
YES
Reinstall the next part in the list and return to the beginning of this step.
Continue repeating this process until a part causes the Please Define System
Console screen to be displayed and all attached devices and adapters to be
listed.
If you have replaced all the items listed above and the Please Define System
Console screen does not display or all attached devices and adapters are not
listed, check any external devices and cabling. If you do not find a problem,
contact your next level of support for assistance.
Go to "Step 1540-24" on page 130.
Chapter 3. Maintenance Analysis Procedures
129
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