IBM 8688 manual Ethernet error messages, Undetermined problems

Ethernet error messages

Diagnostic error messages prompted by the Ethernet controller are on the Resource CD.

Undetermined problems

You are here because the diagnostic tests did not identify the failure, the Devices List is incorrect, or the system is inoperative.

Notes:

1.If you suspect a software mismatch is causing failures (solid or intermittent), be sure to see “Error symptoms” on page 176.

2.A damaged CMOS can cause undetermined problems.

3.Damaged SAL/EFI code can cause undetermined problems. See “Recovering SAL/EFI code” on page 71.

Check the LEDs on all the power supplies (see “Power supply LED errors” on page 180). If the LEDs indicate the power supplies are working correctly, return here and do the following:

1.Turn off the server.

2.Be sure the system is cabled correctly.

3.Remove or disconnect the following (one at a time) until you find the failure (power-on the server and reconfigure each time).

vAny external devices

vSurge suppressor device (on the server)

vModem, printer, mouse, or non-IBM devices

vEach adapter

vHard disk drives

vMemory modules (minimum requirement = 1 GB (4 x 512 MB DIMMs))

Note: Minimum operating requirements are:

a.1 microprocessor with power module

b.4 x 512 MB DIMMs

c.1 power supply

d.1 processor board

e.1 memory board

f.Midplane board

g.I/O board

h.PCI-X board

4.Turn on the server. If the problem remains, suspect the following FRUs in the order listed:

v Power supply

vTop power board

vProcessor board

vMemory board

vMidplane board

vPCI-X board

vI/O board

Notes:

1.If the problem goes away when you remove an adapter from the system, and replacing that adapter does not correct the problem, suspect the PCI-X board.

2.If you suspect a networking problem and all the system tests pass, suspect a network cabling problem external to the system.

Chapter 6. Symptom-to-FRU index 185