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Thermal compound on GPU VRAM.

post #1 of 12
Thread Starter 
Hello.
Quick question, il be using MX-2 for my next water block install, it states that its non conductive.
My question: Is it better to use thermal paste on the memory and VRMs or thermal pads on both memory and VRMs?
Thanks.
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post #2 of 12
The problem with that is that usually, the memory and VRMs have a larger gap between them and the heatsink. I don't think it'd work very well.
    
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post #3 of 12
What waterblock is it? If the waterblock's instructions say to use thermal pads then use thermal pads. If it allows you to use either thermal pads or paste, go with paste.
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post #4 of 12
Thread Starter 
Quote:
Originally Posted by dM@n View Post
What waterblock is it? If the waterblock's instructions say to use thermal pads then use thermal pads. If it allows you to use either thermal pads or paste, go with paste.
Its the XSPC Razor 6970.
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post #5 of 12
Quote:
Originally Posted by aroc91 View Post
The problem with that is that usually, the memory and VRMs have a larger gap between them and the heatsink. I don't think it'd work very well.
This. There is usually a larger gap between the ram and the heatsink. If you use paste it probably will not have any contact between the RAM and the heatsink. The pads are thick and squishy by design. They fill up the gap between the RAM and heatsink.

Paste will conduct more heat and be a better choice only if you actually have contact...
    
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post #6 of 12
Depends on the distance between block and cards mem modules.

Some blocks require that you use paste,some require that you use pads,if you put paste on where there should be pads then its likely the mem wont make contact with the block at all.

Try and find a pdf file for your block on net and see if its tells you the reccomended thickness of thermal pads,that may help you a little.

PDF file
Edited by superj1977 - 4/4/11 at 7:11pm
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post #7 of 12
Thread Starter 
Also, should i spread the thermal compound on the GPU die itself or just make a pea shaped drop and let the block do the work?
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post #8 of 12
Myself i have used a small pea size on ATI/AMD cards as the die is small,i think its nvidia where you usually spread the compund.

Try it first without any thermal pads on and test how much compound you need to use,trial run.

Good luck.
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post #9 of 12
Well, according to the instructions, it says to use thermal pads on the vRAM, so use the supplied thermal pads. This is to prevent possible contact issues.

For the GPU, I'd do a drop about the size of two peas (might differ for you since that's what the IC Diamond guy advised to me and you're planning on using MX-2 rather than IC Diamond).
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CPUMotherboardGraphicsRAM
Core i5-2500K ASUS P8P67 Pro PNY GeForce GTX 470 G.SKILL Ripjaws X 4GB DDR3-1600 
Hard DriveHard DriveCoolingCooling
Samsung 840 Series Western Digital Caviar Green 1TB (Advanced Format) Swiftech Apogee XT Swiftech MCW80 
CoolingCoolingCoolingOS
XSPC D5 Dual Reservoir Magicool Extreme Dual 120mm Radiator Phobya Xtreme 200mm Radiator Microsoft Windows 8 Pro 
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Dell G2410 Logitech K520 OCZ ModXStream Pro 600w Corsair 600T SE 
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post #10 of 12
Thread Starter 
Gentlemen, thank you for your time.
Great help.
What
(12 items)
 
  
CPUMotherboardGraphicsRAM
i7-6950X X99 Deluxe ASUS GTX Titan Black 32GB @ 3200 
Hard DriveOSMonitorKeyboard
Samsung 960 Pro Windows 10 Pro x64 Dell UltraSharp U3014 Microsoft SideWinder X4 
PowerCaseMouseAudio
Corsair AX860 NZXT Switch 810 Mionix Castor Asus Xonar STX + 2x LME49860NA OPs + HD650s 
  hide details  
Reply
What
(12 items)
 
  
CPUMotherboardGraphicsRAM
i7-6950X X99 Deluxe ASUS GTX Titan Black 32GB @ 3200 
Hard DriveOSMonitorKeyboard
Samsung 960 Pro Windows 10 Pro x64 Dell UltraSharp U3014 Microsoft SideWinder X4 
PowerCaseMouseAudio
Corsair AX860 NZXT Switch 810 Mionix Castor Asus Xonar STX + 2x LME49860NA OPs + HD650s 
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Reply
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