Subject: Re: CPU Temp. From: Jimmy Selgen <none@jsn--devlix.dk.lh.bsd-dk.dk> To: bsd-dk@bsd-dk.dk Date: Sun, 07 Mar 2004 15:13:59 +0100
On Sun, 2004-03-07 at 14:58, Thomas Alexander Frederiksen wrote:
> On Sun, 07 Mar 2004 12:10:27 +0100
> Jimmy Selgen <none@jsn--devlix.dk.lh.bsd-dk.dk> wrote:
>
> <snip>
> > Du skal så lige være opmærksom på at garantien fra AMD ryger hvis du
> > så meget som bare nærmer dig CPU'en med kølepasta.
>
> Request for documentation.
[KLIPPEKLISTRELIMIHÅRET]
http://www.xtremetek.com/info/index.php?id=14
AMD has directly confirmed that your warranty is void if you use any
type of thermal grease other than Shin Estu G 749 (and even that is only
for evaluation purposes). AMD also provides their reasoning for this
rule.
Here is the exact email DCFlux received in from Steve Knauber of AMD in
reply to his inquiry:
For permanent installation AMD only recommends using phase
change material with the heatsink/fan. No thermal grease is
recommended for anything other than temporary evaluation
purposes. And the only thermal grease recommended for that is
Shin Etsu G 749. Artic Silver is made up of a matrix with
conductive particles. There is the possibility of creating
electrical shorts on the package. Any failed processor used w/
Artic Silver or any other thermal grease other than Shin Estu G
749 would be subject to warranty voiding. The concerns with
other thermal greases are due to thermal pumpout causing
overheating with on off cycling of the PC over time. The above
information assumes you are referring to use with Athlon. For
Opteron Shin Etsu G 749 also is the only thermal grease
recommended for permanent installation. Again the concern is due
to pumpout with thermal cycling.
Og længere nede :
AMD recommends that only pre-attached thermal pads (Phase Change
Material) be used with their CPUs. This helps cushion the CPU during
heatsink mounting and also helps prevent overclocking. (The pads often
make the chip run too hot to overclock.)
So neither Arctic Silver nor any other thermal compound is recommended
by AMD for long term use and technically voids the CPU's warranty.
Overclocking the chip or using a heatsink other than the stock heatsink
on a retail chip also voids the warranty.
The only grease approved by AMD is G749 which is approved for short-term
testing to verify that a CPU works. AMD recommends the G749 grease for
short-term use because it is made by an ISO 9001 certified company and
is non-metal based.
/Jimmy
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