Friday, September 16, 2005

SunFIRE 280R: Howto disable a memory module using the Solaris 9

Subject: Re: SunFIRE 280R: Howto disable a memory module using the Solaris 9
> Hello,
> we have a SunFIRE 280R with a faulty memory module. How can we disable
> this memory module until we're able to replace it?

Pop the box and remove the bank, to my knowledge you cant disable a bank
of memory ina 280R, best bet is to let Sun replace it, you have enough
soft errors to get it replaced, you also had a double bit error which led
to the UE event, the CE's dont break the system so that can be a scheduled
replacement but if you have UE's often you should get a replacement
a.s.a.p.

I dont know your level of service with Sun (if any) but if you have one
check with them for a possible FCO match.

Uncorrectable system bus (UE) Event

Corrected system bus (CE) Event

The FE handbook on sunsolve shows which are which and I belive the
systemBoard as well shows the component name, however, you need to pop the
whole bank of four DIMMS if you do since they work in quads in the 280R.

So you need 4 identical DIMM Modules in at least one Bank to boot the
machine otherwise you get messages like that:

This happens when you have one DIMM missing in a Bank:

CPU seeprom format: 0000.0000.0000.0001ERROR:
set-bank-present: DIMMs or DIMM FRUproms missing!
Powering off system!

This happens when you have mixed different DIMMs in one bank:

├║PU seeprom format: 0000.0000.0000.0001
Corrected ECC Error
ok Corrected ECC Error
ok Corrected ECC Error
...

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