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Overclocking eVga 460gtx

post #1 of 5
Thread Starter 
Hi,

I'm quite familiar with overclocking CPU's but never thought about overclocking the GPU.

I have a eVga 1GB GTX460 card and was wondering whats the best way to go about overclocking it? is it a case of just upping the mem/shader until artifacts then start upping the voltage?

Does anyone have the same card with some mem/shaders clocks running at what voltage they could share? also what increase did you notice?

Thanks
tEh
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tEh
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post #2 of 5
It's best to up the core clock in small intervals first and get that stable. Then do the memory.
Taijin Kyofusho
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Taijin Kyofusho
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post #3 of 5
Pretty much what you said, download MSI After Burner, in the settings enable voltage control - I feel that MSI AB is a better program than eVGA's, but of course its your choice on what you use

AB when voltage control is unlocked already has where you can go to the max allowed by the manufacture, so as you hit instability just bump the voltage up a notch until stability is achieved. Make sure to only go in 10mhz increments, once you get to the max voltage and hit instability, bump it down 20mhz - work on the memory clocks afterwards.

I'm sure that you can find some reviews with clocks, but just like CPU's clock dramatically differently so do GPU's - since Nvidia cards typically o/c well, you should see at least a 100mhz increase I would imagine over stock, most likely more as 460's typically o/c very well. My 470 does 200mhz over stock easily which is good for a 33% increase in performance on the core
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post #4 of 5
Thread Starter 
What is the max voltage? also when over clocking the GPU what extra volts does it draw from the PSU?
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post #5 of 5
uhm max voltage on a card of yours? this depends a LOT ON COOLING.

stock voltage on your card is @ 0.987v / 0.975v ish.

If you're runing stock cooling, I guess it could handle 1volt-1.1volt somewhere, but it would probably reach up to the heat limit on 104 C degrees.

if you manage to keep your card between 20 C - 60 C, the resistance in the circuits in the card would be lower, therefore improve better on low voltages.
the reason for this is simple: when resistance gets higher, some of the energy will switch over in another energy form, exacly, that is HEAT. therefore there wouldn't be enough energy left to power ur card up to the clock you have set it to, and therefore you would need to imrpove the voltage more, but that would probably roast your card.

best you can do is watercool that ****.

altrough, those 460 cards are ******* awesome in the propper case, even with stock cooling.
They are very quiet.
my self, I got the GLH version, witch runs on 800mhz core clock, and the fan on this card never bypass 2k rpm, so I barely hear it. still, it reaches 70-80 C on max load, but hey, thats why Im gona install watercooling when it arives 2morrow!
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