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Lowering 2.8E core voltage?

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Ravsitar

Member
Joined
Jun 4, 2003
Location
Minnetonka, MN
Here’s my question: I’ve got a 2.8E (Prescott) in a Shuttle SB62G2 . I know the specs say that this model does not “officially” support the Prescott. It works find just the same. The temp is a little high but everything’s stock right now and cooling is not the issue.

I have dropped the core voltage from its AUTO value of 1.5 to 1.4 volts to cut a few degrees off. It runs Prime stable for 12+ hours (I stopped it at 12 hours). On the Intel’s website, it shows the minimum voltage for the 2.8 Prescott as 1.255 (or about there).

Has any one had their Prescott down to that voltage? Are there any issues that come up at this lowered voltage?

I would like to drop the voltage as low as I can and stay stable. That would keep the temperatures down too. I am not planning on overclocking this setup as it’s for my parents and there’s not really enough cooling in the case. Thanks.
 

batboy

Senior Moment
Joined
Jan 12, 2001
Location
Kansas, USA
Default Prescott vcore is variable, but most seem to be 1.3875v or 1.4v. So, if you can drop the voltage down another notch and still be stable... do it. Might wanna check vcore in a monitoring program to see if that mobo might be undervolting or overvolting from what your BIOS is set at.
 
OP
Ravsitar

Ravsitar

Member
Joined
Jun 4, 2003
Location
Minnetonka, MN
Thanks Batboy. MBM shows that it is slightly undervolting the core voltage. When I set it to 1.4v I get 1.38 with MBM. I'll try to keep lowering it till I hit stability issues.
 

aNTiChRisT

Member
Joined
Feb 25, 2004
Location
England
Just out of interest, i am about to build a shuttle system -- anything i should know?

Its an AMD 2400...

~t0m