[ComradeNF]

Just OC'd my 5770 to 925 GPU Clock, 1300 Memory Clock, and it won't work on stock voltage. Keeps crashing games after 10 minutes because display drivers stops working.

What program should I use to increase the voltage, and how much should I increase it by?

I have MSI afterburner and CCC installed.

 

[hellfire72]

Quote:

Originally Posted by ComradeNF;12992824
Just OC'd my 5770 to 925 GPU Clock, 1300 Memory Clock, and it won't work on stock voltage. Keeps crashing games after 10 minutes because display drivers stops working.

What program should I use to increase the voltage, and how much should I increase it by?

I have MSI afterburner and CCC installed.

That's strange... what drivers are you using? I'm using driver version 8.821 and catalyst version 11.2 and can run 925gpu and 1400 memory easily on stock voltage with no crash issues.

 

[ComradeNF]

Quote:

Originally Posted by hellfire72;12993218
That's strange... what drivers are you using? I'm using driver version 8.821 and catalyst version 11.2 and can run 925gpu and 1400 memory easily on stock voltage with no crash issues.

Just updated drivers via Steam AMD Driver Update this morning.

 

[hellfire72]

Idk what to tell you. Mines runs games at 925/1400 fan 85 just fine...

 

[hellfire72]

I think the card is getting too hot that's why it's crashing. Either that, or try reloading the drivers.

 

[andypc]

Try lowering memory, it isnt worth the trouble, core gives you the most return.

 

[ComradeNF]

Quote:

Originally Posted by hellfire72;12993433
I think the card is getting too hot that's why it's crashing. Either that, or try reloading the drivers.

It goes up to about 75 degrees, but that's it.

 

[Coolio831]

Not all cards are the same, But if you can with some voltage tweaks, you can take the core up to 1000 and memory to atleast 1350. I forgot what voltage i used. Try setting a custom fan profile in afterburner.

 

[CHez]

I have been able to run on stock voltage up to 950x1335, stays solid for hours in Furmark... but crashes in 5 min of folding. now at 930x1325 and folding for days!

 

[animal0307]

http://www.overclock.net/ati/633816-how-overclock-your-ati-gpu.html

Follow this guide to the "T". I got my XFX 5770 ZNFC model to 1000/1375 on 1.2v and I run 65% fan while I game, and never get over 65C. Also I'm using CCC 10.10e hotfix drivers on Win 7 64bit if that helps any.

 

[xsever]

Quote:

Originally Posted by animal0307;13000194
http://www.overclock.net/ati/633816-how-overclock-your-ati-gpu.html

Follow this guide to the "T". I got my XFX 5770 ZNFC model to 1000/1375 on 1.2v and I run 65% fan while I game, and never get over 65C. Also I'm using CCC 10.10e hotfix drivers on Win 7 64bit if that helps any.

Any idea which version of the ZNFC your card is?

 

[animal0307]

Model number is HD-577A-ZNFC. It's a reference design which means it has voltage tweaking but it's not a reference model so it doesn't have 2 CF fingers.

It's this one.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150447

 

[xsever]

I have the egg shaped ZNFC which Newegg sells and mine does not have voltage control so far. The voltage regulator on the card is not supported yet by any software except for RBE which can undervolt the card, but that's pretty much it.

Thanks for taking the time. +1 Rep!

 

[rsfkevski]

Sapphire Trixx will allow voltage tweaking and control on 95% of the HD5770's out there

Link To Trixx Below:
http://www.sapphiretech.com/ssc/TriXX/

 

[xsever]

Quote:

Originally Posted by rsfkevski;13001607
Sapphire Trixx will allow voltage tweaking and control on 95% of the HD5770's out there

Link To Trixx Below:
http://www.sapphiretech.com/ssc/TriXX/

I tried it and sadly enough, it did not enable voltage control.

 

[rsfkevski]

Quote:

Originally Posted by xsever;13001638
I tried it and sadly enough, it did not enable voltage control.

Aw man...that sux major A$$...thought for sure that would do the trick for ya

 

[animal0307]

Hey whats the model number for your card?

 

[xsever]

Quote:

Originally Posted by rsfkevski;13001711
Aw man...that sux major A$$...thought for sure that would do the trick for ya

Thanks anyway.
Quote:

Originally Posted by animal0307;13001759
Hey whats the model number for your card?

Mine is the 577X-ZNFC VE.2 and the voltage regulator is the APW7088.

Other people running the ZNFC VC.3 variant of the card were able to unlock voltage control. Check my thread here: http://www.overclock.net/ati-drivers-overclocking-software/935275-xfx-5770-non-ref-locked-voltage.html

 

[animal0307]

Dang that sucks man. You could always try a hard volt mod.

 

[xsever]

Quote:

Originally Posted by animal0307;13002883
Dang that sucks man. You could always try a hard volt mod.

I do not like to hard volt mod it. I am getting 970/1350 at 1.1V so I am really happy and my FPS are very satisfactory.

Maybe the voltage regulator will be supported in the future.