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K7S5A: BIOS-Crossflash instead of Vcore-MOD??

 
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Oliver Arndt
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PostPosted: Fri Mar 24, 2006 10:35 pm    Post subject: K7S5A: BIOS-Crossflash instead of Vcore-MOD?? Reply with quote
Hi,

I would like to lower the CPU-voltage (and the FSB but it always freezes
when changing it on-the-fly) to save energy. Neither the latest official
BIOS nor the OC-BIOS (CheepoBios CHB0327.ROM from 08-20-2003) give
access to the voltages.

My CPU is a mobile Athlon XP 1800+ (Thoroughbred) that should
(hopefully) work fine with lower voltage.

I just read that it is possible to flash the K7S5A with a BIOS from the
K7S5A2 (AWARD instead of AMI). This BIOS is accompanied by several
errors (for the K7S5A of course) but also brings the possibility to
change the CPU-voltage!!
That would mean a great power-saving advantage without a IMHO tricky
vcore-MOD. Those several errors are unaceptable to me but it shows what
great functions of the K7S5A can be revealed that are obviously
available on this board!

So,
first: Can someone who flashed his K7S5A tell me which voltages become
available with the K7S5A2's AWARD BIOS?

second: Did someone get the goal to lower (or raise) the CPU-voltage
permanent by setting a value in the AWARD BIOS, flashing then back to
AMI BIOS and keep the new voltage?

Thanks a lot!
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Guest
PostPosted: Thu Mar 30, 2006 1:33 pm    Post subject: Re: K7S5A: BIOS-Crossflash instead of Vcore-MOD?? Reply with quote
Oliver Arndt <post@oliverarndt.de> wrote in news:e01pf0$gp8$1@online.de:

Quote:
Hi,

I would like to lower the CPU-voltage (and the FSB but it always freezes
when changing it on-the-fly) to save energy. Neither the latest official
BIOS nor the OC-BIOS (CheepoBios CHB0327.ROM from 08-20-2003) give
access to the voltages.


WHY would anyone want to do this? If it saves even 10 WATTS (which it will
NOT) for an entire year at 12 cents per kilowatt, it would save a maximum
of $10.50 for an entire year. That's enough to light up one small Christmas
tree bulb for a year.

It is always prudent to evaluate ones motives before undergoing a big
project which may be hazardous to your computer.
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