General Checkout (8640-Pxx)
The ROM based diagnostic program developed by IBM is the primary method of testing the server.
Option-specific diagnostic files are supplied with some optional devices and adapters.
These files provide a more specialized test of the option. Refer to the documentation supplied with the option
for information on installing and running option-specific diagnostics.
Diagnostic error messages appear when a test program finds a problem with a hardware option.
General error messages appear if a problemor conflict is found by an application program, the operating system, or
both. For an explanation of these messages refer to the information supplied with that software packages.
A failed system might be part of a shared DASD cluster (two or more systems sharing the same external storage device(s)).
Prior to running diagnostics, verify that the failing system is not part of a shared DASD cluster.
A system might be part of a cluster if:
- The customer identifies the system as part of a cluster.
- One or more external storage units are attached to the system and at least one of the attached storage
units is additionally attached to another system or unidentifiable source.
- One or more systems are located near the failing system.
If the failing system is suspect to be part of a shared DASD cluster, all diagnostic tests can be run except diagnostic tests which tests the storage unit (DASD
residing in the storage unit) or the storage adapter attached to the storage unit.
- For systems that are part of a shared DASD cluster, run looped one test at a time. Do not run all tests in looped mode, as this
could enable the DASD diagnostic test.
- If you suspect a problem, run the ROM based diagnostic program. Always start with step 001 below. For additional information
about the test programs see 'About the Test Programs'.
- If multiple error codes are displayed, diagnose the first error code displayed.
- If the computer reports a POST error, go to the 'Symptom-to-FRU Index'.
- If the computer hangs and no error is displayed go to 'Undetermined Problems'.
- If a device cannot be selected from the Module Test menu, that device might be defective.
- Power supply problems, see 'Power Supply Voltages'.
- Unknown Power-on Password, see 'Removing an Unknown Power-on Password'.
IS THE SYSTEM PART OF A CLUSTER ?
Yes No |002| Go to Step 004
Schedule maintenance with the customer. Shut down all systems
related to the cluster. Run storage test.
- Power-on the server and watch the screen. Or, if the system is
already powered-on, press Ctrl+Alt+Del.
- When the message 'Press F1 to enter Configuration/Setup' appears,
press F1. If a power-om or administrator password is set,
the system prompts you for it.
The Diagnostic/Setup Utility Menu appears.
- Select Diagnostic Utility, then, press Enter
The Diagnostics Utility Menu appears.
- Select Run Diagnostic, then, press Enter.
The server displays the Diagnostic Mode Menu.
- Stop on Error stops the test programs when the Single or
Loop diagnostic test encounter an error.
The Endless Loop choice automatically stops on error.
- Reset Run List clears previously defined diagnostic test selections from memory.
- Reset Result Buffer clears the results of the last diagnostic tests.
- Single runs the selected test runs one time.
- Loop runs the selected test up to a maximum of 254 times, andsaves the results.
- Endless Loop runs the selected test until stopped manually or until the test encounter an error.
Running the test over an extended time can help to identify the cause of an intermittent component failure.
-Press Enter. The test selection menu displays.
-Press the arrow keys to move between the choices on the menu.
-Press Enter to select or deselect the choice.
- All runs all tests on the menu. When you select this choice, all of the other choices change to Y (selected).
- System Board tests the CMOS, RTC, and timers
- CPU test the microprocessor(s) on the processor board.
- DRAM Memory tests all system memory in all DIMM slots.
- Diskette A tests the diskette drive and controller.
- Parallel port tests the parallel port.
- Serial port tests the serial port.
- Keyboard tests the keyboard.
- Ethernet tests on-board Ethernet functions.
- SCSI refers to the 'Diagnostic and Test' section, using the SCSI diagnostic diskette.
- Mouse tests the device connected to the mouse port.
- Video to test the monitor.
-Select Run Diagnostics. The diagnostic program then runs the test for each of the selected devices or modules.
-Press Esc twice to return to the Diagnostic Utility Menu.
-Select Diagnostic Log to view the results of the diagnostic tests.
DID THE DIAGNOSTIC TEST DETECT AN ERROR ?
Yes No |005| The diagnostic tests completed successfully.
Go to the 'Symptom-to-FRU Index'
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