Unsupported DIMM detected is RS/6000 7024-E30

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GL1zdA
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Unsupported DIMM detected is RS/6000 7024-E30

Unread postby GL1zdA » Thu May 15, 2014 10:01 am

Is there any non obvious way to deal with F25 Unsupported DIMM detected on an RS/6000 7024-E30? The machine was disassembled and reassembled years ago, after what it wouldn't post - nothing could be seen on the LCD. Since it's big and I have to downsize my collection I decided today to try to revive it one last time. I reseated the CPU module, the DIMMs and launched it. It fails with "Unsupported DIMM", but these were the modules this machine came with and it ran with them (2 DIMMs, 64 MB each, in the first 2 slots). Any hints what could be wrong?
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Re: Unsupported DIMM detected is RS/6000 7024-E30

Unread postby ClassicHasClass » Thu May 15, 2014 6:39 pm

Have to ask: are you sure nothing's wrong with the DIMM or the socket?
smit happens.

:Fuel: bigred, 900MHz R16K, 4GB RAM, V12 DCD, 6.5.30
:Indy: indy, 150MHz R4400SC, 256MB RAM, XL24, 6.5.10
:Indigo2IMP: purplehaze, 175MHz R10000, Solid IMPACT
probably posted from Image bruce, Quad 2.5GHz PowerPC 970MP, 16GB RAM, Mac OS X 10.4.11
plus IBM POWER6 p520 * Apple Network Server 500 * RDI PrecisionBook * BeBox * Solbourne S3000 * Commodore 128 * many more...

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Re: Unsupported DIMM detected is RS/6000 7024-E30

Unread postby GL1zdA » Thu May 15, 2014 11:55 pm

Well, I'm not sure, but there's no physical damage on the DIMMs or the sockets. It seems these are 5V DIMMs and I don't have another computer to test them. I've installed them in DIMM 0 and DIMM 1 - does the RS/6000 have any requirement on how to install the modules? Do I have to have installed both?
:PI: :Indigo: :Indigo: :Indigo: :Indy: :Indy: :Indigo2: :Indigo2IMP: :Octane: :Fuel: :540:

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Re: Unsupported DIMM detected is RS/6000 7024-E30

Unread postby ClassicHasClass » Fri May 16, 2014 6:37 am

Yes, I'm pretty sure they have to be matched pairs.
smit happens.

:Fuel: bigred, 900MHz R16K, 4GB RAM, V12 DCD, 6.5.30
:Indy: indy, 150MHz R4400SC, 256MB RAM, XL24, 6.5.10
:Indigo2IMP: purplehaze, 175MHz R10000, Solid IMPACT
probably posted from Image bruce, Quad 2.5GHz PowerPC 970MP, 16GB RAM, Mac OS X 10.4.11
plus IBM POWER6 p520 * Apple Network Server 500 * RDI PrecisionBook * BeBox * Solbourne S3000 * Commodore 128 * many more...


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