Undervolting K7S41GX

Splinter · Post by **Splinter** » Sat Dec 10, 2005 12:44 pm

Unfortunally this was the only mATX Socket A board availible in my area. Everything on it works fine, but I dont think it has an undervolting option.

Ive looked around a bit for a solution, but I really cant find anything. I really need to undervolt this chip. Is there any hackish-way of forcing the voltage down?

Splinter · Post by **Splinter** » Sun Dec 11, 2005 10:38 pm

No one?

qviri · Post by **qviri** » Mon Dec 12, 2005 6:27 am

Pin-mod?

Aleksi · Post by **Aleksi** » Mon Dec 12, 2005 7:32 am

Second vote for pin modding. I did it to an Athlon 2000+ on an Asus A7V880 that didn't support undervolting. I cut some bridges on the CPU and planted a very thin jump wire in to the socket. IIRC correctly it gives me a 1,425 Vcore, but you can go lower, by cutting and connecting certain bridges on the CPU. I think that way you don't need the jump wire. Although, be sure to check how low your CPU speed can be set from BIOS. If you set the Vcore to lowest possible (~1,2V I think with the bridge mods) and then notice you can't get the thing to boot up due to too big CPU speed then you're in for a nice ride re-connecting and cutting some more.

HTH.

Splinter · Post by **Splinter** » Mon Dec 12, 2005 8:01 pm

This board has jumper control for FSB and multipliers, so I should be ok..

Splinter · Post by **Splinter** » Mon Dec 12, 2005 9:07 pm

So Ive done a bit of searching, and found some info, including that 'interactive pin mod' thing, but theres not much info on undervolting below 1.475v

Im looking at going to 1.2v or even 1.1v, anyone have a link?

Splinter · Post by **Splinter** » Sat Dec 17, 2005 3:29 pm

anyone?

Aleksi · Post by **Aleksi** » Sat Dec 17, 2005 11:58 pm

Hi Splinter,

I was going to reply to this post earlier but totally forgot, sorry about that.

The other site I was looking at when I did the mod was this one http://fab51.com/cpu/barton/athlon-e23.html, but I really don't know if everything is accurate on that page. But atleast it has info on going down to 1,1V.

Splinter · Post by **Splinter** » Sun Dec 18, 2005 8:30 pm

TY.

Ill prolly try and find a used athlon to experiment this on, they're prolly pretty cheap these days