IBM 8669 - Eserver xSeries 342, Hardware Maintenance Manual

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Host Built-In Self Test (BIST)
Message Action
Host fail (level-informational; host’s built-in
self test failed)
1. Reseat CPU
2. Reseat VRM
3. Replace CPU
Bus fault messages
Bus fault messages Message Action
Failure reading 12C device. Check
devices on bus 0.
1. If installed, reseat I2C cable between Remote Supervisor Adapter
(in PCI slot 1/J44) and planar (J45)
2. Reseat Memory DIMMs
3. Memory DIMMs
4. System board
Failure reading 12C device. Check
devices on bus 1.
1. Reseat I2C cable between operator information panel and planar
(J39)
2. Replace Operator information panel
3. System board
Failure reading 12C device. Check
devices on bus 2.
1. Reseat cable between Power Backplane and planar (J43)
2. Reseat Power Backplane
3. Reseat Power Supply
4. Replace Power Backplane
5. Replace Power Supply
6. Replace System board
Failure reading 12C device. Check
devices on bus 3.
1. Reseat Cable (Signal I2C - IO Planar to SCSI Backplane) between
DASD backplane and connector (J9) of planar
2. Replace DASD backplane
3. Replace System board
Failure reading I2C device. Check device
on bus 4.
1. System board
Undetermined problems
You are here because the diagnostic tests did not identify the failure, the Devices
List is incorrect, or the system is inoperative.
Note: A corrupt CMOS can cause undetermined problems.
Note: A corrupt BIOS can cause undetermined problems. (See “Recovering BIOS
code” on page 16.)
Check the LEDs on all the power supplies, see “Power supply LED errors” on
page 92. If the LEDs indicate the power supplies are working correctly, return here
and do the following:
1. Power-off the computer.
2. Be sure the system is cabled correctly.
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Hardware Maintenance Manual: xSeries 342 Type 8669