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[Official] GTX 580 Overclocking Club - Page 328

post #3271 of 3582
If you're trying to test stability, heaven is better than kombuster. However the best test is simply play a DX11 game for a couple of hrs.
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post #3272 of 3582
Quote:
Originally Posted by SeD669 View Post

Hey guys is the Kombustor Benchmark good enough for a test of the overclock?

Get your VRMs cooled first dude. Seriously, it's a bad idea to stress your card in any way with naked VRMs.
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post #3273 of 3582
Quote:
Originally Posted by juano View Post

Get your VRMs cooled first dude. Seriously, it's a bad idea to stress your card in any way with naked VRMs.

What's a good poor man's method of cooling these. I just installed a Kuhler 620 on my GTX560 with a 80mm fan blowing directly on the VRM's. Is that sufficient?
post #3274 of 3582
Quote:
Originally Posted by 4thKor View Post

What's a good poor man's method of cooling these. I just installed a Kuhler 620 on my GTX560 with a 80mm fan blowing directly on the VRM's. Is that sufficient?
Doesn't the Asus 560 come with a little VRM heatsink stock? If so and you didn't remove it then that with a fan pointed at it is more than sufficient.

As far as I know (from another thread) Sed669 has removed the stock unisink his card came with and not replaced it with any means of cooling the VRMs. Which is why I told him he needs to do something to cool them ASAP and no stressing until then, he should be able to just replace his stock unisink for an adequate if not great way of cooling his VRMs.
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post #3275 of 3582
Quote:
Originally Posted by juano View Post

Doesn't the Asus 560 come with a little VRM heatsink stock? If so and you didn't remove it then that with a fan pointed at it is more than sufficient.

As far as I know (from another thread) Sed669 has removed the stock unisink his card came with and not replaced it with any means of cooling the VRMs. Which is why I told him he needs to do something to cool them ASAP and no stressing until then, he should be able to just replace his stock unisink for an adequate if not great way of cooling his VRMs.

I don't think it has factory heatsinks. And I didn't remove anything but the stock cooler. But the original DCII cooler didn't make any kind of contact with the VRM's and actually blew hot air from the heat pipes onto the VRM's. I would think I'm in good shape. I have some blue aluminum heatsinks I could put on the card. But which part of the VRM would I put them on? After googling this it appears to me that VRM is actually a term for a "unit" of several types of components.
post #3276 of 3582
Quote:
Originally Posted by 4thKor View Post

I don't think it has factory heatsinks. And I didn't remove anything but the stock cooler. But the original DCII cooler didn't make any kind of contact with the VRM's and actually blew hot air from the heat pipes onto the VRM's. I would think I'm in good shape. I have some blue aluminum heatsinks I could put on the card. But which part of the VRM would I put them on? After googling this it appears to me that VRM is actually a term for a "unit" of several types of components.

The Asus DCII 560 top does have a VRM heatsink preinstalled. See this page for pictures of it removed, but like I said it is preinstalled and you would have had to remove it yourself.

Assuming you didn't remove it, then that with a fan giving it some airflow will be more than sufficient.
Edited by juano - 2/5/13 at 1:49pm
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post #3277 of 3582
Quote:
Originally Posted by juano View Post

The Asus DCII 560 top does have a VRM heatsink preinstalled. See this page for pictures of it removed, but like I said it is preinstalled and would have had to remove it yourself.

Assuming you didn't remove it, then that with a fan giving it some airflow will be more than sufficient.

Thanks, Juano. I guess I'm looking at the wrong thing(s) on my card. I've also discovered that in most cases VRM cooling is not nearly as important as cooling the GPU. Rep+ for your input!
post #3278 of 3582
Quote:
Originally Posted by 4thKor View Post

Thanks, Juano. I guess I'm looking at the wrong thing(s) on my card. I've also discovered that in most cases VRM cooling is not nearly as important as cooling the GPU. Rep+ for your input!

I consider VRM cooling very important, only slightly less important than core cooling IMO. If you'd like to double check to make sure your VRM cooling is still there then look for the ends of black plastic push pins coming out of the back of your card, highlighted in the picture below.



This 560 we're talking about is your TC one and entirely dedicated (no gaming), correct? What voltage do you use to run at 999MHz?
Edited by juano - 2/5/13 at 1:58pm
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post #3279 of 3582
Quote:
Originally Posted by juano View Post

I consider VRM cooling very important, only slightly less important than core cooling IMO. If you'd like to double check to make sure your VRM cooling is still there then look for the ends of black plastic push pins coming out of the back of your card, highlighted in the picture below.



This 560 we're talking about is your TC one and entirely dedicated (no gaming), correct? What voltage do you use to run at 999MHz?

I can see the pins and the cooler, so all is well.

And, yes it is my dedicated TC card. I'm running at 1.062 volts, 2000 shaders, 70 temps. I can get more out of this card, but it is factory "locked" at 1Ghz. I've flashed the BIOS for up to 1.25 volts, but no go on clocks. It won't even let me access the clock speed in whatever program(s) I was trying to use. Do you know any way to get higher clocks? I've googled and tried every method I could find to no avail. I've had a few others try to modify my BIOS and they all met with failure also.
post #3280 of 3582
Quote:
Originally Posted by 4thKor View Post

I can see the pins and the cooler, so all is well.

And, yes it is my dedicated TC card. I'm running at 1.062 volts, 2000 shaders, 70 temps. I can get more out of this card, but it is factory "locked" at 1Ghz. I've flashed the BIOS for up to 1.25 volts, but no go on clocks. It won't even let me access the clock speed in whatever program(s) I was trying to use. Do you know any way to get higher clocks? I've googled and tried every method I could find to no avail. I've had a few others try to modify my BIOS and they all met with failure also.

Mayyyyybbbee tongue.gif

Yea use 266.66 drivers they are a known stable driver set for folding and in the 200 series of drivers as opposed to the 300 series which is when Nvidia capped Fermi to 1GHz.

I'm going to assume you know how to overclock your card and test for stability without failing many WUs to get there, but if you need help then please ask me rather than fail WUs continuously. But basically with your card, your VRM cooling (with a fan pointed at it) and your core cooling you should (keyword there) be fine for continued 24/7 folding at 1.15v.

Just so we're on the same page are you using a Dwood bracket with fan to attach that 620?
Edited by juano - 2/5/13 at 2:26pm
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