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The 55nm GTX 260 216 Overclock Thread - Page 95

post #941 of 984
Quote:
Originally Posted by Dom_sufc View Post
As a result of instability?

You could force the clocks to constant 3D in Rivatuner. I can link to a guide if you like.

Yes, instability. I was trying to stay away from RivaTuner as support seems to be dropping for it. Was hoping to use Precision or afterburn, but I guess I'll give RivaTuner a try. I've got links to guides, th man
    
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post #942 of 984
Quote:
Originally Posted by PizzaMan View Post
Yes, instability. I was trying to stay away from RivaTuner as support seems to be dropping for it. Was hoping to use Precision or afterburn, but I guess I'll give RivaTuner a try. I've got links to guides, th man
No problems. I am actually going to put that link in my sig now, you are at least the 15th person I have advised to use it
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post #943 of 984
RivaTuner isn't fixing it either. It must be OCP tripping. Time to work some V'mod on it I guess.
    
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post #944 of 984
Quote:
Originally Posted by PizzaMan View Post
RivaTuner isn't fixing it either. It must be OCP tripping. Time to work some V'mod on it I guess.
Let me know how that goes. I also avoided the RivaTuner workaround as you need to use such old drivers to get that to work (like 186's or something).

One of my 260's does something similar (my BFG). I've considered flashing to a different bios. My XFX never downclocks from instability, while my BFG does it more often then I'd like. I'm not sure that a different bios would work, but eventually I'm going to try it.

Edit: Maybe we are experiencing the exact same thing. When the card is power-saving the core clock will drop to [301Mhz Core | 602Mhz Shader | 100Mhz Memory]. When I stress the card to where I would expect artifacting I instead see a core clock of 400Mhz. Then I either have to restart, or disable and then renable SLI and that finally recovers the card.
Edited by W4LNUT5 - 5/26/10 at 8:14pm
    
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post #945 of 984
hey guys, ive updated my speeds, ive altered it abit from
879/1800/1080 to 891/1782/1080
http://www.techpowerup.com/gpuz/a82u4/
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post #946 of 984
New to overclock.net and new to overclocking as well.. but i think i got a pritty stable clock

http://www.techpowerup.com/gpuz/2b26w/

Core: 749
Shader: 1615
Mem: 1250
Edited by wapozzi - 5/28/10 at 9:04pm
post #947 of 984
Solved my problem. It was OCP. I could OC either my core or shader, but not both or it would trigger OCP and perma drop to 2D/3D clocks. Did an OCP mod to the card. I can actually gets ATItool to artifact now.
    
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post #948 of 984
eVGA GTX260 216 55m SC = 756/1630/1210.
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post #949 of 984
Gyes in order to achive a 100% stable overclock ,you firstly have to go to rivatuner and prevent your card from downclocking.Read a guide on this forum.without preventing downclocking my gpu used to be always on 400MHz core (2d clocks) despite what gpu-z showed (880MHz) .Do this before you post you clocks.

Keep oveclocking!!!
post #950 of 984
Quote:
Originally Posted by johnko1 View Post
Gyes in order to achive a 100% stable overclock ,you firstly have to go to rivatuner and prevent your card from downclocking.Read a guide on this forum.without preventing downclocking my gpu used to be always on 400MHz core (2d clocks) despite what gpu-z showed (880MHz) .Do this before you post you clocks.

Keep oveclocking!!!
That guide is in my sig
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