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7950 Vapor X Voltage Locked? - Page 89

post #881 of 1056
Quote:
Originally Posted by glina View Post

So guys,

I exchanged the thermal pad under the main VRM heatsink on my 7950 Vapor-X and the VRM temps went down by up to 14C (!!!). With my daily O/C to 1100MHz i was getting up to 96C in Furmark and 81C gaming. With Fujipoly Extreme under the heatsink, it now only goes up to 82C in Furmark and max 72C in Farcry3.

I wish there was a place in Finland where you could get that stuff :l
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post #882 of 1056
I got mine from FrozenCpu.
They ship worldwide. I ordered Friday and got it today in the mail.
post #883 of 1056
Dont forget coupon code "xtreme" for 5.1% off.

Thanks for letting us know glina. I keep contemplating whether or not its worth the money to me, and while its probably not... I have the itch to get the temps lower. Since 80c isnt quite killer if 110c is the max "safe" VRM temp... eh...

However, replacing the thermal paste with some higher quality stuff might reduce core temps enough to increase core clocks, and the same for the memory. But apparently pads cant be reused once opening coolers, so its either lower all the temps or none of them tongue.gif
post #884 of 1056
Sure it is biggrin.gif

You need one sheet of 60x50mm 1mm thick, which is $7.5. Then you cut it with scissors to get the required shapes.

The original pad on the VRMs is 2mm thick, so you need to put two layers of the new one. I was afraid it wouldn't work as well, but apparently no problems :-)

The stock memory thermal pads can be reused no problem - they are the very soft putty type.

Get some Liquid Pro / Liquid Ultra on the core as well. This gave me 5C less core under load.

Overall more OC with the same temps, or same temps with lower fan speeds. Win-win.
Edited by glina - 2/20/13 at 11:35pm
post #885 of 1056
Yes, I'd love to be able to run 1250/1900 without 100% fan...

>.>.. but its 25 for those pads? I suppose thats not too bad. I'd get the Fujipoly Extreme 100x150x1.0[?] and that would hopefully be enough for everything.
post #886 of 1056
You need only one 60x50mm pad (less then half of it actually) for the VRMs. If you also want to do the memory, you need 2 pieces (so $15 total).
I'm not fully sure about the memory though as I haven't changed these pads yet. The original pads on the memory are 1mm thick, but they are also MUCH softer than the Fujipoly stuff and are about ~0.5mm after compression. Perhaps it would be better to use 0.5mm.

I also got one sheet of these so I'll try putting it on during the weekend
post #887 of 1056
i use .5mm fujipoly extreme and double up where needed.
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post #888 of 1056
Dang it, I was gonna get the 100x150x1 Extreme pad but now I'm not sure tongue.gif.

Apparently the Premium pads are softer [according to the ebay seller] and according to him, he gets no performance difference between Extreme and Premium. Although if I read his auctions right.. its 17x10x1mm of pad for $5.50.. which is a god awful price.

So maybe the Ultra Extreme is a waste, but who knows...

I guess I'll have to open my baby up and see for myself what to do. Maybe one 100x15x1.5 Extreme for the VRM and one 60x50x1.0 Ultra Extreme for the memory?
post #889 of 1056
Quote:
Originally Posted by Derpinheimer View Post

Dang it, I was gonna get the 100x150x1 Extreme pad but now I'm not sure tongue.gif.

Apparently the Premium pads are softer [according to the ebay seller] and according to him, he gets no performance difference between Extreme and Premium. Although if I read his auctions right.. its 17x10x1mm of pad for $5.50.. which is a god awful price.

So maybe the Ultra Extreme is a waste, but who knows...

I guess I'll have to open my baby up and see for myself what to do. Maybe one 100x15x1.5 Extreme for the VRM and one 60x50x1.0 Ultra Extreme for the memory?



It's better to go thin with this stuff if possible. The .5mm sheets are the cheapest and if you get a large enough sheet you can double/triple it up where needed to fit and you get the benefits of running as thin as possible and saving money on the costs. (my logic)....
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post #890 of 1056
1.5mm will not be thick enough for the stock VRM heatsink on Vapor-X, unless you modify it somehow.

2 layers of 1.5mm will have more thermal resistance than 2 layers of 1mm.
4 layers of 0.5mm will have even more resistance.
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