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Twin Frozr Artifacts....

post #1 of 8
Thread Starter 
I am trying to OC my twin Frozr CF. I set voltage to 1.200 and core clock to 850 and it get massive amount of artifacts. If i lower the voltage the artifacts go away. Does this mean I have a crap chip for OC? using a 6950 Twin Frozr II. Dang, non stable unlock and no oc headroom,. Should i RMA it?
Edit: I tried putting voltage at 1.300 and the system just hangs. interesting
Edited by donkru - 7/25/11 at 11:12am
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post #2 of 8
1.3 is alot for a 6950. I'd be bump it to 1.175. Also what temp. is your card running at w/ the OC?
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by WizrdSleevz View Post
1.3 is alot for a 6950. I'd be bump it to 1.175. Also what temp. is your card running at w/ the OC?
during Kombustor i reach 55 c max, while folding its like 73c. i have tried a new approach, I have left the voltage at 1.112 and set my clock to 910, it seems stable enough to make it through a kombustor run. I have no idea why more voltage would make it get artifacts. This is my first amd card since the radeon 7800 (i think its 7800) and i have been used to nvidia for a while, Maybe i have to feel these cards out.
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post #4 of 8
Do you have powertune enabled? Go to CCC and check the overdrive settings. Might want to disable the power saving features since it's known to limit the performance of the card.
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post #5 of 8
"high backward leakage current"

check this thread: http://www.overclock.net/amd-ati/107...win-frozr.html
post #6 of 8
Thread Starter 
Quote:
Originally Posted by vermitsu View Post
"high backward leakage current"

check this thread: http://www.overclock.net/amd-ati/107...win-frozr.html
sounds like an interesting idea. I guess that does mean, whatever I can get at 1.15v is all i will get. nice.... RMA time
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post #7 of 8
Quote:
Originally Posted by donkru View Post
sounds like an interesting idea. I guess that does mean, whatever I can get at 1.15v is all i will get. nice.... RMA time
Im sure you know more then me since im new to all of this and I dont mean to be rude but have you increased your core clock as you increase your voltage?

Just the way you wrote your msg it seems like you left it at stock 850 mhz and up the voltage to 1.2v and exp artifacts. Have you tried upping it to say 880-920ish at 1.2v?

-----
post #8 of 8
Thread Starter 
hello, I have been very unclear recently. Its been a while since I decribed problems on here. I have tried every combination of core clock and voltage and if i go to 1.3v it artifacts, be it 800 on the vore or 900 or 950.the highst vcore i can go is 1.181 and 900 mhz. nothing more.
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