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GT 240 overclocking

post #1 of 17
Thread Starter 
I overclocked my GT 240 but the core clock/shader clock and memory aren't showing what I have them overclocked to thinking.gif
GT240OC.png
The clocks aren't even running at stock, is this a glitch in MSI AB? GPU-z reads my clocks fine.

Edit: I ran OCCT again with GPU-z running and even that read my clocks at 405 >_> I'm trying to upload the screenshot I took.

GPUZGT240.png
Edited by Kratthew D. Kraids - 3/4/11 at 4:58pm
    
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post #2 of 17
try reinstalling the drivers. Also, did the already installed driver do a crash and recover during the overclocking? If it did, then you will have to reboot to properly re-initialize the driver and have it work right.
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post #3 of 17
Thread Starter 
The drivers are current, sometimes when I got to watch a you tube video the drivers will crash and recover. It likes to do that a lot when I'm watching flash based videos online, it did artifact during Painkiller thinking.gif
    
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post #4 of 17
if its doing that then your overclock is WAY too high.

Heres how to do it right:

Open up furmark and get it cooking. Make sure GPU clocks are at stock.
SLOWLY increase core and shader clock (unlink them, but keep them close with the shaders having priority). Increase the clocks until you get artfacting/driver reset. Mark the clock speed which triggered the reset, and then cycle power and set the clocks JUST BELOW that speed. Do the same with memory. Once done, use the Folding@home GPU client and run it for 48 hours. Folding@home is very picky about stability, and will cut the units short when the overclock is unstable, and thus is more or less the best way to long-term stability test a GPU/CPU overclock.
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post #5 of 17
Thread Starter 
Quote:
Originally Posted by Cyrious;12614705 
if its doing that then your overclock is WAY too high.

Heres how to do it right:

Open up furmark and get it cooking. Make sure GPU clocks are at stock.
SLOWLY increase core and shader clock (unlink them, but keep them close with the shaders having priority). Increase the clocks until you get artfacting/driver reset. Mark the clock speed which triggered the reset, and then cycle power and set the clocks JUST BELOW that speed. Do the same with memory. Once done, use the Folding@home GPU client and run it for 48 hours. Folding@home is very picky about stability, and will cut the units short when the overclock is unstable, and thus is more or less the best way to long-term stability test a GPU/CPU overclock.

I forgot to mention this but it did all this driver crashing and a little bit of artifacting when I first got it and they were at stock clocks.
    
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post #6 of 17
2D clocks...
    
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post #7 of 17
Thread Starter 
Quote:
Originally Posted by MR KROGOTH;12615544 
2D clocks...

Like it's staying at 2D clocks? even in 3D mode?
    
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post #8 of 17
They are Low Level 3D Clocks, my GTX460 use to do the exact same thing. In Nvidia Control panel there is a setting called "Power Management Mode", setting it to "Prefer Max Performance" Will stop it completely.
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post #9 of 17
Quote:
Originally Posted by Kratthew D. Kraids;12615525 
I forgot to mention this but it did all this driver crashing and a little bit of artifacting when I first got it and they were at stock clocks.
it was crashing and artifacting at stock? RMA it. Rip XFX a new one while you are at it, and if you must get another GT240, go with EVGA. mine, despite the fact the chokes squeal a little bit, works great.
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post #10 of 17
Thread Starter 
Quote:
Originally Posted by Jesse^_^;12615586 
They are Low Level 3D Clocks, my GTX460 use to do the exact same thing. In Nvidia Control panel there is a setting called "Power Management Mode", setting it to "Prefer Max Performance" Will stop it completely.

I'll try this and see if it helps
Quote:
Originally Posted by Cyrious;12615588 
it was crashing and artifacting at stock? RMA it. Rip XFX a new one while you are at it, and if you must get another GT240, go with EVGA. mine, despite the fact the chokes squeal a little bit, works great.

If the above option doesn't I'll do that after I get my 6950 smile.gif
    
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