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I fixed my GTX 460!!!

post #1 of 5
Thread Starter 
I have a EVGA Superclocked edition GTX 460 (gave it to my cousin a couple of days ago since I have a good card in both my desktops) and I had damaged the internal heat spreader (IHS) when trying to upgrade to the GELID Icy Vision Rev 2 cooler. After applying the new heatsink, my temps would reach 90C when running OCCT in less than 5 seconds and would have continued to climb until the card practically fried. I used the sticky guide provided on this forum to re-seat the IHS. Now the temperature only hits 79-80 C after a 15 minute run of OCCT. After the TIM between the IHS and chip, as well as the layer between the base of the GELID cooler finally breaks in, I will theoretically drop an additional 6C.

Here are the photos of the process:

Picture of the bone-dry TIM on the chip. Probably part of the reason that it wasn't cooling right.



The IHS before being cleaned and having the edges honed down and polished



The chip surface after being cleaned of the old TIM



The IHS after having it's edges honed down with 400 grit sandpaper and polished with super-fine steel wool.



I must give a HUGE shout-out to Cakewalk_S for his amazing guide on this process. thumb.gif
post #2 of 5
Pull up the IHS from the die again, check the spread pattern of the new thermal paste. If you've got plenty of paste that is... If its still thick, you need to keep sanding the IHS edges. I kinda expect a little higher temp drop than that... when I originally did, I believe it was ~10C drop....

But good job man! Now just get an Antec 620 and run it right on the die, then you'll really see low temps!
post #3 of 5
Thread Starter 
Do you think that lapping both the inside of the IHS and the outside as well would help with heat transfer? Maybe by 2-3 C?
Edited by oldsk00l90 - 9/26/12 at 8:53am
post #4 of 5
Quote:
Originally Posted by oldsk00l90 View Post

Do you think that lapping both the inside of the IHS and the outside as well would help with heat transfer? Maybe by 2-3 C?

yes, but if you lapp the inside you should do it with like any sandpaper higher than 1000grit and use your finger since you cant get a flat surface in there. I can upload a pic of my 580 heatspreader lapped on the inside of it. Lapping the outside will probably get ya a few degrees drop.
post #5 of 5
Nice results from that process. Think I may give it a go on my older-of-the-two 470, as that sucker runs silly hot while folding frown.gif +10 on the other card, at 950mV. frown.gif

It's not the TIM, that card card has always been that hot (changed TIM multiple times as well). Could be an IHS flaw I think biggrin.gif
    
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CPUMotherboardGraphicsGraphics
Intel Core i7-4790K ASRock Fatal1ty Z97X NVIDIA GeForce GTX 780 NVIDIA GeForce GTX 780 
RAMHard DriveHard DriveHard Drive
32GB ADATA XPG DDR3-2400 1x 256GB Plextor M6e M.2-PCIe 2x 256GB Samsung SSD 830 2x 2TB Western Digital Black 
OSMonitorKeyboardPower
Microsoft Windows 6.4.9841 CTP Qnix QX2710LED Logitech G710 EVGA Supernova 1000 G2 
CaseMouseAudio
Corsair Carbide 500R Logitech G3 Creative Zx, Sennheiser HD598 
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