Re: G5: 3 blinks and no boot [message #33363] |
Tue, 15 January 2013 22:25 |
Cameron Kaiser
Messages: 1622 Registered: December 2011
Karma: 0
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> I think it was the memory controller, partly because it has always been
> really hot, between 70 and 75 degrees Celsius (checking with Marcel
> Bresink's Temperature Monitor).
> For a comparison, both CPU dies are around 50_ C or less.
Wow, that is VERY hot. This quad:
Intake 24.0 C
CPU A 1/2 49.5/46.1 C
CPU B 1/2 39.5/40.3 C
Memory cntrlr 54.9 C
Exit 42.1 C
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------------------------------------ personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser@floodgap.com
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Re: G5: 3 blinks and no boot [message #33372 is a reply to message #33363] |
Tue, 15 January 2013 23:34 |
Valter Prahlad
Messages: 87 Registered: September 2012
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Member |
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Il giorno 16/01/13 04:25, Cameron Kaiser ha scritto:
>> I think it was the memory controller, partly because it has always been
>> really hot, between 70 and 75 degrees Celsius
> Wow, that is VERY hot. This quad:
>
> Memory cntrlr 54.9 C
Yes it is.
Since I got it (couple of years ago) it has always been that way.
I cleaned the G5 as best as I could, using a vacuum cleaner (both sucking
and blowing), but it didn't change the memory controller temp much.
I probably should disassemble it and check the logic board backside, but
it's too much hassle for me - I'm not that good with hardware.
Besides, I'm afraid I could make the LCS leak (this is a Delphi unit, the
most likely to have leaking issues).
Reading on the Net, lots of people have G5s with the same high temp I have.
Maybe the Quad G5 had some improvements about airflow/heatsinks.
Apart from disassembling the G5, have you got any suggestion about lowering
that controller chip's temp?
It's not getting any airflow there (on the inner side of the board), and I
think its being so hot has something to do with the "memory error" I just
got.
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