Higher vCore on Abit SA6R?

[Katabatik]

Does anybody know how to get higher voltage out of a SA6R. I am willing to do any mods to the mobo or whatever. Any help would be great.

 

[batboy]

Some of the Abit BX boards had a BIOS voltage trick, but I don't know if that will work on the SA6R (see signature). Depending on the default voltage of your CPU, you can also do the "wire trick" to the CPU VID pins.

 

[marty]

I agree with Batboy once again. You need to wire pins together to get a higher default voltage. Once done you may need to lower the voltage from the default.

 

[outhouse]

Let us know if you have any luck vidpinning if you need a link with dirrections to vidpinning just ask. I'm working on a MB mod with the IC chip but first i have to find the FB connector pin [1 out ofg 12] and so far i have not found it but with some luck i'll figure it out once i get it down and how to find the rite pin on the IC chip i'll post and let everyone know.

 

[Katabatik]

Yeah, if anybody has any links or walk-throughs on how to do this I think I'd give it a try.

 

[batboy]

http://www.hardocp.com/articles/intel_stuff/bumpvoltage.html

The article is about cB0 Celerons, but any coppermine CPU will work doing this, you just have to know what your default voltage is, that's the key.

 

[outhouse]

batboy (May 10, 2001 07:07 a.m.):

http://www.hardocp.com/articles/intel_stuff/bumpvoltage.html

The article is about cB0 Celerons, but any coppermine CPU will work doing this, you just have to know what your default voltage is, that's the key.

I tried vidpinning my p31g@1225 vh6-2MB but had no luck and i'm wondering if it has something to do with the way I did it, I was unaware that knowing your Defalt voltage was the key could you explain this for us maybe we can get better results. thanks

 

[batboy]

Outhouse, all of the P-III 1 gig chips have a default voltage of 1.7v except the brand new cD0 stepping, which I'm sure you don't have. So, if you look at the chart VID3 pin is internally connected to VSS pin for 1.7v. Now, if you wire VID0 to VSS, this will give you 1.75v "default". If you wire VID1 to VSS, this will give you 1.8v. If you wire VID2 to VSS, this will give you 1.9v. Those people with CPU that are 1.65v default have the least amount of voltage choices.

 

[outhouse]

Thanks Batboy i understand now what you ment I did try for 2.cv and 2.5cv but no go [maybe its just my MB wont play ball in the vidpinning field] do you think maybe I was trying to up it to far and I went beyond my power management IC's capabilities? I have no problem going to water or a refrigeration unit if i'm succesful
thanks oh im running abit vh6-2 and in bios it lets me go up to 1.9 for CV should i just set it to default when vidpinning?

 

[batboy]

It's easiest just to wire VID2 to VSS for a default of 1.9v in your case. You'll be able to adjust the voltage even higher if you want in the BIOS, probably up to 2.05v.

 

[outhouse]

Thanks i'll give it a try #3 maybe this times a charm

if it matters in bios i can go from 1.6 to 1.9 as it sits.

 

[batboy]

Yes, the Soft Menu BIOS will always allow a little extra voltage above the CPU's "default" signal. That's what this wire trick does, it fools the BIOS into thinking the chip has a higher default voltage then it really does. If you wire the CPU so that you get a 1.9v signal, then you should additionally have new voltage settings in the BIOS of at least up to 2.05v. Be careful with those high voltages, you need lots of cooling for that.

 

[outhouse]

Thanks Batboy Ive been busy with mothers day and all, i'll give it another shot and let everyone know how i did Ive done everything possible for cooling [using air] except a copper HSF if it need water i'm game for that, my brother works for a place that makes refrigeration units for rocket fuel and other stuff simular and ive got him working on a unit for a PC might be to exspencive but if its under 300. i'll have him make me one.