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Voltage modding with ATI Tray Tools

G

GregP24

[H]ard|Gawd
Joined
Jul 21, 2004
Messages
1,860
I'm trying to adjust the voltage on my 5870. If I raise the voltage, ATT won't allow me to change clock speeds. I've got my card running at 950/1250 now and I'd like to get it up to 1000/1250.

What I'm doing is in the overclocking section I'm adding 1.2vddc and then selecting it. After I do that I change the clock speed to 1000mhz, then I hit apply and ATT resets the speed to 850mhz. If I select the default 1.175v I can change the clock speeds to my hearts content. What am I doing wrong?
 
Is this on a reference pcb 5870? If not then that could be the problem.

Otherwise you may want to try MSI's Afterburner utility.
 
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