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YES
Go to "Entry MAP" on page 39. Use the new symptom.
6. Record any devices missing from the list of all adapters and devices. Continue with this MAP. When
you have fixed the problem, use this record to verify that all devices appear when you run System
Verification.
Are there any devices missing from the list of all adapters and devices?
NO
Reinstall all remaining adapters, if any, and reconnect all devices. Return the system to its original
configuration. Be sure to select fast-boot mode (select Enable Fast Boot) on the System Power
Control menu from the service processor main menu. Go to "MAP 0410: Repair Checkout" on
page 45.
YES
The boot attempts that follow will attempt to isolate any remaining I/O drawer problems with
missing devices. Ignore any codes that are displayed on the operator panel unless stated
otherwise. Go to "Step 1542-5".
Step 1542-5
The system is running from the integrated I/O or from I/O attached to an adapter installed into one of the
integrated PCI slots.
1. Turn on the power to boot standalone diagnostics from CD-ROM.
2. If the Please Define the System Console prompt is displayed, follow directions to select the system
console.
3. Use the Display Configuration and Resource List to list all attached devices and adapters (refer to the
RS/6000 Eserver pSeries Diagnostic Information for Multiple Bus Systems, if necessary).
4. Check that all attached devices and adapters are listed.
If the Please Define the System Console prompt did not display or all attached devices and adapters are
not listed, the problem is in the system.
Is the Please Define the System Console prompt displayed and are all attached devices and
adapters listed?
NO
Go to "Step 1542-7".
YES
Go to "Step 1542-6".
Step 1542-6
1. Turn off the power.
2. The item just replaced fixed the problem.
3. Reconnect the diskette drive cable to the diskette drive connector on the system.
4. Plug in all adapters that were previously removed but not reinstalled.
Reconfigure the system to its original condition. Go to "MAP 0410: Repair Checkout" on page 45.
Step 1542-7
Are there any adapters in slots 1, 2, 3, 4, 5, or 6 (location codes U0.1-P1-I1 through I6) in the
system?
NO
Go to "Step 1542-8".
YES
Go to "Step 1542-10" on page 75.
Step 1542-8
Replace the CEC backplane, location U0.1-P1.
74
NAS Gateway 500 Service Guide
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