IBM eServer xSeries 335 Type 8676, Руководство по техническому обслуживанию и ремонту

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Bus fault messages
Note: See “System” on page 116 to determine which components should be replaced by a field service technician.
Bus fault messages Message Action
Failure reading 12C device. Check
devices on bus 0.
1. If installed, reseat the I2C cable between Remote Supervisor
Adapter (in PCI slot 1/J1) and system board (J2).
2. Memory DIMMs.
3. System board.
Failure reading 12C device. Check
devices on bus 1.
1. Reseat the I2C cable between the operator information panel
and system board (J10).
2. Operator information card.
3. System board.
Failure reading 12C device. Check
devices on bus 2.
1. Reseat the cable between system board and the power supply.
2. Power supply.
3. System board.
Failure reading 12C device. Check
devices on bus 3.
1. Reseat the cable between the SCSI backplane and connector
(J8) of system board.
2. SCSI backplane.
3. System board.
Failure reading I2C device. Check device
on bus 4.
v
System board
Undetermined problems
Use the information in this section if the diagnostic tests did not identify the failure,
the devices list is incorrect, or the system is inoperative.
Notes:
1. Damaged data in CMOS can cause undetermined problems.
2. Damaged data in BIOS code can cause undetermined problems.
Check the LEDs on all the power supplies. If the LEDs indicate the power supplies
are working correctly, complete the following steps:
1. Turn off the server.
2. Be sure the server is cabled correctly.
3. Remove or disconnect the following devices (one at a time) until you find the
failure (turn on the server and reconfigure each time):
v Any external devices
v Surge suppressor device (on the server)
v Modem, printer, mouse, or non-IBM devices
v Each adapter
v Drives
v Memory modules (minimum requirement = two 256 MB DIMMs)
Note: Minimum operating requirements are:
a. Power supply
b. System board
c. One microprocessor and VRM
d. Memory (with a minimum of two 256 MB DIMMs)
4. Turn on the server. If the problem remains, suspect the following FRUs in the
order listed:
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xSeries 335 Type 8676, Type 8830: Hardware Maintenance Manual and Troubleshooting Guide