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Pushing GTX580 to the limits(how to increase voltage higher?)

post #1 of 6
Thread Starter 
Okay, so today I've been pushing my GTX 580 to its limits_

I want to push at least 1000+mhz core clock

So far I've reach 960mhz stable with 1150mV with MSi Afterburner_

Can't increase voltages past 1150mV_ Now the question is, what other software is there that'll allow me to push voltages higher?

My temps are all good_ Never exceeding 55C (Artic Accelero Extreme Plus) I've taken all the necessary steps to increase the cooling on the Videocards mosfets effectively and I have all the fans running at Max_

I know I can push it further perhaps even into 1100mhz (For benchmarking reasons) I just need it to run a few rounds of benchmarking =]

Is there a way to modify Afterburner to allow me to push the voltages higher?

Any advice?
Edited by httuner - 5/1/11 at 12:08am
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post #2 of 6
You will need to change the bios to a custome one (not possible in every card). You can try and ask someone who had already done it.
You will also need an open volt AB.

Also if your card can do 960 at 1.15v, it doesn't mean it can do 1ghz or 1.1ghz without going to crazy volts, which in turn will require adding an extra power source, and a much better cooler (the cooler you have doesn't have a very good VRM cooling, you can fry out trying to go too far).
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by Defoler View Post
You will need to change the bios to a custome one (not possible in every card). You can try and ask someone who had already done it.
You will also need an open volt AB.

Also if your card can do 960 at 1.15v, it doesn't mean it can do 1ghz or 1.1ghz without going to crazy volts, which in turn will require adding an extra power source, and a much better cooler (the cooler you have doesn't have a very good VRM cooling, you can fry out trying to go too far).
A custom bios huh, never knew about that route_ I'll surely google it up,

Yeah I figure I might have to push voltages past 1.2volts but thats just for a short period of time, although that does run the risk of burning the card out during the benchmark process_ I suppose I'll have to cross my fingers and hope it survives the benchmark lol

Thank you =]
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post #4 of 6
Asus reference cards can go up to 1.213v
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post #5 of 6
Use Fermi Bios Editor to unlock the voltage control on your 580 gtx.
I tried it myself and can say that it works 100%.You can unlock voltage up to 1.213 and unlock the fan speed to 100% instead of 85%

Check out this thread

http://www.overclock.net/nvidia/nvid...r-1-5-5-a.html

Good guide here aswell

http://forums.guru3d.com/showthread.php?p=3842188

Have fun overcloking your 580 gtx further but be careful.You dont want to push too hard and harm your card
Hope this has helped
Edited by pm1109 - 5/1/11 at 1:34am
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post #6 of 6
You don't really need fermi bios editor for that.
You can just get the asus bios and flash your GPU to that.

Just don't forget to always save a backup, and have another GPU in hand, just in case, and a DOK for dos startup, so you can re-flash the card to the original bios if there is any issue.
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