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Several questions about aftermarket vrm cooling for 7950, and thermal compound.

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Edited by alig23 - 12/3/12 at 11:48pm
post #2 of 2
I think you could apply TIM directly to the VRMs as long as it's non-conductive and not capacitive. If you did that though, you would need a way to keep the heatsink from just falling off. That's where thermal tape comes in. When you mention metal, I assume you mean the heatsinks which wouldn't be touching the PCB since they'd have a layer of thermal paste/thermal tape between them and the components.

If you have a reference PCB, then you could probably use 1 of these. Otherwise, what you linked should do fine. You might be able to find the heatsinks from Arctic Cooling Accelero coolers on Ebay or somewhere too.

You could cut it or leave it although if it's longer than the VRMs then I'd cut it where the VRMs end just so it doesn't get in the way.

What's in the red box on the left of the picture may not need cooling but don't quote me on that. It certainly couldn't hurt to throw some heatsinks on 'em though.
Those black boxes are called chokes/inductors and no they don't need heatsinks on them. Nor do the capacitors.
I've also never heard anyone say it was fine to leave VRAM naked especially when they're not being actively cooled. I would definitely recommend cooling them.

Personally, I use the dot in the center for both my CPU and GPU but take a look at this article on HardwareSecrets. thumb.gif
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Ladder 3
(18 items)
 
First Responders
(14 items)
 
 
CPUMotherboardGraphicsRAM
I5 2500k Asus P8P67 PowerColor Vortex II 7970 Samsung 2x4GB 
Hard DriveHard DriveOptical DriveCooling
WD20EARX Mushkin Enhanced Chronos Deluxe 240GB Samsung CD/DVD Burner Noctua NH-D14 
CoolingOSMonitorPower
8 x AP14s Windows 8 64 bit Dell U2312HM Seasonic X650 
CaseMouseMouse PadAudio
NZXT Switch 810 CM Storm Spawn Puretrak Stealth Asus Xonar DG 
Audio
Beyerdynamic DT 770 Pro 
CPUMotherboardGraphicsRAM
AMD Athlon II X4 620 MSI 770-G45 Asus HD 4870 4GB G.Skill 
Hard DriveOptical DriveCoolingOS
Western Digital Blue 500GB Sony Optiarc Arctic Cooling Freezer 7 Pro Windows 7 
MonitorPowerCaseMouse
Hanns.G HW191A Antec Neo Eco 520 HAF 912 Razer Deathadder Black Edition 
Mouse PadAudio
Steelseries Qck JVC HA-RX 700 
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Overclock.net › Forums › Graphics Cards › AMD/ATI › ATI Cooling › Several questions about aftermarket vrm cooling for 7950, and thermal compound.