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Help me Overclock GTX 460 768mb

post #1 of 16
Thread Starter 
I want to overclock this card MSI 460GTX
I've been having issues with what I have come to know as (2d Idle Speed)
On windows xp 32bit I was stuck on 405mhz core clock while idle AND while I was gaming. I monitored this via GPUZ and MSI Afterburner. Was using Nvidia Latest Drivers.

I am now installing updates on windows vista 32bit, I installed the drivers that came on the disk with the card and installed the MSI afterburner that came with the card aswell. If all goes well I would love to do some overclocking.

The card comes with the following specs.
Core: 725Mhz
Shader: 1450Mhz
Effective Memory Clock: 3600Mhz

My case has great cooling and efficient airflow.

I would like to push the GPU to the highest stable OC Possible but I am unaware of the cards MAX clock speeds. If you have this card or know anything about it and have OC'ed it enough to be certain it is stable with stock cooling I would love to have your advice on how I can get started. I would like to use MSI Afterburner. I have found out in my research that as this is a Fermi card I CANNOT unlink the Core from the Memory.

What would be the proper Voltage adjustment and other speeds to set this too. I am not a novice to this, but I would like to find out a stable OC so I can flash a custom BIOS to the card itself and uninstall afterburner. I have done this successfully with my old 8800gt and would like to try it with the 460 aswell.

Thanks for taking the time to read and help me out.

-ViR-tUaL
post #2 of 16
what exactly is so Complicated? MSI afterburner, Download install it, when in it go to setting and enable voltage control, Play with sliders and get max OC, use Furmark to stress test, if it crashes lower overclock....
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Bertha
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post #3 of 16
Every card is going to be a little different...I would recommend going up about 25mhz at a time...Each time running some sort of benchmark to check for artifacts...
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post #4 of 16
Thread Starter 
Quote:
Originally Posted by Havokr505 View Post
what exactly is so Complicated? MSI afterburner, Download install it, when in it go to setting and enable voltage control, Play with sliders and get max OC, use Furmark to stress test, if it crashes lower overclock....
The voltage is complicated to me. I stepped my 8800gt to 1.1 Volts. I just don't wanna blow up the card. What would a good voltage be for the GTX 460 or(at what clock/mem/shader should I increase the voltage)
post #5 of 16
I used that card for a freinds build couldn't be easier to overclock using afterburner. The card is easily stable at 900mhz and 1.100 volts the memory is good to 3800 or maybe higher havent tried it.
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post #6 of 16
Thread Starter 
Quote:
Originally Posted by Strider_2001 View Post
Every card is going to be a little different...I would recommend going up about 25mhz at a time...Each time running some sort of benchmark to check for artifacts...
Thank you I will try that shortly with furmark when I'm updated.
I'm not used to these 2d speeds(IDLE) is that normal for the card to drop to 50mhz? On XP the clock would go back and forth between IDLE and 3d speed while gaming. I just want to understand that a little more before I think it's hardware related and I have to return it.
post #7 of 16
DON'T install the drivers that came on the supplied disk. Those are almost always several versions old. Instead, download them from the Nvidia website.
http://www.nvidia.com/page/drivers.html

You should be able to hit 850/1700/2000 easily enough. These are the clocks of the factory overclocked EVGA 460 FTW. With a voltage bump you may be able to hit 900.
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post #8 of 16
Thread Starter 
Quote:
Originally Posted by kz26 View Post
DON'T install the drivers that came on the supplied disk. Those are almost always several versions old. Instead, download them from the Nvidia website.
http://www.nvidia.com/page/drivers.html

You should be able to hit 850/1700/2000 easily enough. These are the clocks of the factory overclocked EVGA 460 FTW. With a voltage bump you may be able to hit 900.
Thanks I will be sure to get the latest drivers for vista, The reason for using the ones supplied with the card was when I researched peoples GPU clock dropping significantly they suggested rolling back to the drivers supplied by the manufacture. So that's why I installed the old ones.
post #9 of 16
set voltage to 1.087 , core clock to 900 MHz, memory clock to 2100 MHz. start stress testing. if unstable, slowly reduce core clock. experiment with memory clock for best performance. do not leave memory at stock as it will slightly bottleneck ur overclock.

^that's what i did and ended up with a satisfying 1.087v 900/1800/2200 MHz in afterburner. (actual mem clock is 1100
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post #10 of 16
Thread Starter 
Thank you all for the help. I ran a few benchmarks in Furmark with James8's suggestions and it worked beautifully! Here are the Benchmark results.
+rep to you james!
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