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His Radeon HD 5770 Overclocking

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June 6, 2013 9:30:31 AM

I have 2 HIS H577FK1GD radeon hd 5770 in crossfire and I am having trouble getting a stable overclock. Has anybody successfully oc'd these cards?

any help would be great
a b K Overclocking
June 6, 2013 9:36:49 AM

I have and it holds almost no value, don't spend to much time, even at 1Ghz the advantages were negligible
June 6, 2013 9:58:46 AM

spentshells said:
I have and it holds almost no value, don't spend to much time, even at 1Ghz the advantages were negligible


what are the speeds of your overclock? Core, and memory speeds and the utility that you used.

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a b K Overclocking
June 6, 2013 4:15:34 PM

I can't find the tool I used it was an older ati tool, it seems the ati page I was looking for is gone (no more ati)


Core I simply ran at 960Mhz with catalyst and mem 1350Mhz

The memory overclock can go much higher 1450 i've seen as almost normal,

remember the best oc you can get is the highest from the worst of the two cards,

If I find the tool later I will come back and update but let me tell you it does not support crossfire so it's really of no use BUT it does allow you to alter voltage on voltage locked cards
a b K Overclocking
June 9, 2013 8:03:23 AM

spentshells said:
BUT it does allow you to alter voltage on voltage locked cards
Unless it's hardware locked. I'm bumping this incase you find that tool, because I want to increase my voltage a bit, and it's locked.

June 10, 2013 9:28:26 PM

icraft said:
spentshells said:
BUT it does allow you to alter voltage on voltage locked cards
Unless it's hardware locked. I'm bumping this incase you find that tool, because I want to increase my voltage a bit, and it's locked.



Have you tried msi afturburner?

a b K Overclocking
June 16, 2013 3:26:43 PM

lol, went on a week trip, sorry. But yes, I have, no change. It shows 1212mv but there is no change past the 1.2 stock. I'm thinking it's hard locked.
!