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Can sapphire hd7970 dual x flash to Ghz edition bios - Page 2

post #11 of 32
Thread Starter 
default is set at 1000, what should i set to?
     
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post #12 of 32
Thread Starter 
default is 1075 soz
     
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post #13 of 32
if default is 1075mv push it to 1125 mv . see if you can run stable at 1100 mhz core clocks. test with heaven, 3d mark. if it runs stable then push higher to 1150 mhz, 1200 mhz. if you come across artifacts, freezes, crashes bump up the voltage to 1175mv, 1225 mv and so on. also while increasing voltage monitor GPU core and GPU VRM temps using gpu-z or hwinfo32 under load. after you have found a stable overclock test with games like bf3, farcry 3. sometimes you might have to lower the clocks a bit to run stable in all games 24/7.
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post #14 of 32
Thread Starter 
so is it stable/safe to run 1225mv 24/7? like for a long term using and how about the memory clock ?thanks mate u helped me alot thumb.gif
     
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post #15 of 32
Quote:
Originally Posted by Raf Leung View Post

so is it stable/safe to run 1225mv 24/7? like for a long term using and how about the memory clock ?thanks mate u helped me alot thumb.gif

its perfectly fine as long as core temps are below 75c and VRM temps below 95c. also normally the sweetspot for tahiti chip (HD 7970 / HD 7950) is 1200 mhz. beyond that clocks performance / clock speed gains come at a disproportionately high power/heat cost. thumb.gif
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post #16 of 32
Thread Starter 
just tried running 1100mhz but still crush when i set the voltage up to 1175mv, i think i got a bad card doh.gif
     
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post #17 of 32
Quote:
Originally Posted by Raf Leung View Post

just tried running 1100mhz but still crush when i set the voltage up to 1175mv, i think i got a bad card doh.gif

where did you buy the card from ? how much did it cost you ? are you within the return period ?
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post #18 of 32
Thread Starter 
Quote:
Originally Posted by raghu78 View Post

where did you buy the card from ? how much did it cost you ? are you within the return period ?
i bought it yesterday at umart lol i dont think they will let me return it sad
     
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post #19 of 32
Thread Starter 
It only cost 399aud but ofcause its cheaper in usa
     
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post #20 of 32
Quote:
Originally Posted by Raf Leung View Post

It only cost 399aud but ofcause its cheaper in usa

what you can do is test the card at stock thoroughly in benchmarks and games. if you find any instability definitely ask for replacement. i think a refund might be a problem but a direct replacement might be easier.
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