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Cannot overclock above stock settings (850/1200) - XFX 5870

post #1 of 15
Thread Starter 
Anyone know why I can't overclock above the stock settings. This is a water cooled card too, so heat isn't the issue...thanks.
post #2 of 15
have you tried bumping the voltate up a bit, we need more information here
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post #3 of 15
Thread Starter 
I needed to know what you needed to know, sorry...i have tried everything.

Afterburner and EVGA do not allow the overclock of the voltage. Was going to try flashing the asus firmware next...didnt know the risks so i havent yet.

also have read that this chip should work at even 900mhz with no issues?
Edited by ThomasA - 5/1/12 at 1:24pm
post #4 of 15
is it a reference 5870 or the non-reference one?

All i can say is, I had a non-reference XFX 5870. they dont OC well. XFX skimped on the VRM and it doesnt have any voltage control.
post #5 of 15
Thread Starter 
i do have a XFX...so its possible it doesnt have an adjustable vram...
post #6 of 15
Is the fan in the center of the card or on the end of the card?

Edit:
Does it look like this:
xfx5870znfc.jpg

or like this:
Radeon-XFX5870_405.jpg
Edited by Nemesis158 - 5/1/12 at 1:34pm
post #7 of 15
Thread Starter 
first one.
post #8 of 15
I had a XFX 4850 i overclocked the core of 3mhz boom artifacts crash, had to put it in a friend pc for resetting, my 560ti did the same, i'm just not lucky with overclocking graphics card... Also i don't think it's necessary for 10-15fps more, i mean in old time lagging was not 25fps in a game, it was 1-2 fps you could NOT play the game, but nowadays it's not necessary, it's just fun to do it.
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post #9 of 15

I had this problem too but the latest version of Sapphire Trixx solved it for me. Think it had something to do with the newer catalyst drivers.

    
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post #10 of 15
Quote:
Originally Posted by ThomasA View Post

first one.

the first picture is the Non-reference card. I could never get mine stable above 900/1220. i will never buy another XFX product again because of this. they skimped on the VRM and the memory chips to get more profit out of them.
Quote:
Originally Posted by cyberdyne 101 View Post

I had this problem too but the latest version of Sapphire Trixx solved it for me. Think it had something to do with the newer catalyst drivers.

im not sure how, Trixx was able to do so at one time for me but it depends on the drivers really. Nobody is even sure how it is possible. according to all the facts, the VRM chip that XFX used on the non-reference 5870 isn't capable of altering the voltages.
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