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Overclocking 7970

post #1 of 3
Thread Starter 
Okay well I want to overclock my recently picked up Sapphire 7970 OC (dual x ,vapor X technology) I ran Heaven 11 and at load it's 61 degrees, and idle 30 degrees, I read somewhere that you dont want it over 70 degrees load ? (not sure if true) So if thats only giving me 9 degrees or so room to overclock, is it worth it ?

or can i go further than 70 degrees ? Current clocks are 1000 / 1450 MHz

Using TriXX to overclock and both TriXX and GPU-Z to watch temps.

not because I need it, just because im bored wink.gif

Playing battlefield 3 aswell

1920x1080 resolution (Samsung S27A950D)

Thanks in advance.
post #2 of 3
Quote:
Originally Posted by Shadey1337 View Post

Okay well I want to overclock my recently picked up Sapphire 7970 OC (dual x ,vapor X technology) I ran Heaven 11 and at load it's 61 degrees, and idle 30 degrees, I read somewhere that you dont want it over 70 degrees load ? (not sure if true) So if thats only giving me 9 degrees or so room to overclock, is it worth it ?
or can i go further than 70 degrees ? Current clocks are 1000 / 1450 MHz
Using TriXX to overclock and both TriXX and GPU-Z to watch temps.
not because I need it, just because im bored wink.gif
Playing battlefield 3 aswell
1920x1080 resolution (Samsung S27A950D)
Thanks in advance.

First of all see how far you can go on stock voltage. normally 1150 Mhz is quite easy to achieve. if you don't increase voltage the power and heat increase won't be as rapid as when you increase voltage. You could easily keep temps below 70c even with auto fan. Then you could also build a custom fan profile which ramps fan speeds and keeps temps below 70c. Ideally its better if temps are below 70c. So work with a custom fan profile in trixx . you could go for voltage tweaking and try and hit 1200 Mhz on core clocks. its quite possible. good luck thumb.gif
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Intel Core i5 2400 DH67BL AMD Radeon HD 6900 Series XFX HD 6950 2GB 
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Corsair Corsair DDR3 1333 Mhz 2 GB Corsair DDR3 1333 Mhz 2 GB Western Digital Caviar Green SONY DVD-RW AD-7260S 
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post #3 of 3
Thread Starter 
Quote:
Originally Posted by raghu78 View Post

First of all see how far you can go on stock voltage. normally 1150 Mhz is quite easy to achieve. if you don't increase voltage the power and heat increase won't be as rapid as when you increase voltage. You could easily keep temps below 70c even with auto fan. Then you could also build a custom fan profile which ramps fan speeds and keeps temps below 70c. Ideally its better if temps are below 70c. So work with a custom fan profile in trixx . you could go for voltage tweaking and try and hit 1200 Mhz on core clocks. its quite possible. good luck thumb.gif

Cheers mate smile.gif

is it increase by 20 each time and do a 30 minute Heaven 11 run and look for artifacts?

I shall look what other peoples custom fan profiles are and steal them ! wink.gif

We'll see how the performance is first and then maybe voltage tweaking !
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