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Having issues with overclocked GTX460.

post #1 of 28
Thread Starter 
I have a Gigabyte GeForce GTX460 768MB, standard clock is 715Mhz. I've recently overclocked it to 860Mhz with Max Voltage allowed in MSI Afterburner.

Problem is that before the overclock Battlefield 3 ran fine, even on ultra with some tweaking. But after the overclock, I got some insane stuttering. Now, first thing that comes into mind is that it is not a stable overclock, but I tested it for one hour with Max shader complexity on OCCTPT without errors. How can it be that BF3 stutters?

Note that I did not overclock the memory at all. Could this also be the problem?

EDIT: It is not overheating, it barely reaches 60C.

Another EDIT: I should probably mention i play on 1080p.
Edited by Jmvars - 1/4/12 at 12:55pm
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post #2 of 28
BF3 probably uses different/more transistors on the chip than OCCTPT to do its work. Also, 60C is the chip temperature, but silicon chips can have localized "hot-spots" -- small areas on the chip that are WAY hotter than the rest of the chip.

It is likely not a stable overclock. See if backing it off a bit helps?
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post #3 of 28
Thread Starter 
Quote:
Originally Posted by aeassa View Post

BF3 probably uses different/more transistors on the chip than OCCTPT to do its work. Also, 60C is the chip temperature, but silicon chips can have localized "hot-spots" -- small areas on the chip that are WAY hotter than the rest of the chip.
It is likely not a stable overclock. See if backing it off a bit helps?

I'm sorry, but with backing off you mean downclock, right?
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post #4 of 28
Vsync on? How's the GPU usage during gameplay?
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post #5 of 28
Thread Starter 
Quote:
Originally Posted by That Guy View Post

Vsync on? How's the GPU usage during gameplay?

Vsync is off. Not sure about GPU usage, but after i close the game Afterburner tells me it has been up to 98-99%. It does use 750-760MB RAM though.
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post #6 of 28
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Quote:
Originally Posted by Jmvars View Post

Vsync is off. Not sure about GPU usage, but after i close the game Afterburner tells me it has been up to 98-99%. It does use 750-760MB RAM though.

But to be honest, it shows 98-99% on every single game I play.
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post #7 of 28
why would you even need maximum voltage?

i own two gigabyte 460's, and from what i've seen from other gigabyte users, our cards handle the voltage very well for some reason.

im on 870 clocks, on 1.025V. almost 100% stable.
post #8 of 28
Thread Starter 
Quote:
Originally Posted by Cryolite View Post

why would you even need maximum voltage?
i own two gigabyte 460's, and from what i've seen from other gigabyte users, our cards handle the voltage very well for some reason.
im on 870 clocks, on 1.025V. almost 100% stable.

If it handles the voltage very well why not max it then?
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post #9 of 28
I'm willing to bet that "stutter" you're seeing or feeling is you exceeding 60FPS, aka screen tearing.

Have you tried running with Vsync ON?

EDIT: You should play some other games and see how it goes.
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post #10 of 28
Quote:
Originally Posted by Cryolite View Post

why would you even need maximum voltage?

i own two gigabyte 460's, and from what i've seen from other gigabyte users, our cards handle the voltage very well for some reason.

im on 870 clocks, on 1.025V. almost 100% stable.

The reason Gigabyte's cards handle voltage well is because the UD technology is included in those cards. It reduces the need in voltage, and makes the card cooler. But to be honest, I just can't get my GB 460 at 850c stable at stock voltage, while most of other GB's cards reach higher clocks than this on stock voltage.

To the op, does it happen in other games that require a high GPU power?
Edited by -X3- - 1/6/12 at 10:19am
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