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Question about VRM heatsink

post #1 of 6
Thread Starter 
A few days ago I put a new cooler on my cpu,and I accidentally touched VRM heatsink,he returned to the place because springs hold it.
But now I probably will have to replace thermal paste on it. Can I put Artic Silver 5 on the VRM heatsink, or I need a special paste for it?
Tnx.496
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Phenom II X4 955 Black Edition Asrock 870 Extreme 3 XFX HD 6870 dual fan Corsair Vengeance 8gb  
Hard DriveOSMonitorKeyboard
Wester Digital Green Coolermaster HYPER 612S AOC 22' Razer Lycosa 
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Seasonic 430W Thermaltake V4 R.A.T. 7 steelseries Q++ 
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post #2 of 6
If you dislodged the heatsink properly, I'd recommend you replace the thermal paste. But if it just tilted a little bit, I can't imagine the heat produced by VRM's is really that intense, some boards don't even have heatsinks.. As the connection is surely still there, I woul be surprised if the heat produced by the VRM's wouldn't be sufficiently transferred by slightly under-par thermal paste.

I wouldn't use AS5 as it conducts electricity, and that might be an issue with the VRM's.
post #3 of 6
Do they even use thermal paste on VRM sinks? I'd expect thermal pads, and if so, no action is required.
 
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post #4 of 6
Quote:
Originally Posted by HothBase View Post

Do they even use thermal paste on VRM sinks?

Typically, no.... but some cheaper MB makers may use paste instead of pads, or nothing at all and hope for the best
Quote:
Originally Posted by HothBase View Post

I'd expect thermal pads, and if so, no action is required.

Correct. Even if you completely remove HS, you do not need to replace the pad unless it is damaged (or really, really old).
post #5 of 6

You knocked it loose?
I did that while installing my D14when I first got my 990XA! biggrin.gif

Thermal pads, so I just put them back on and pushed firmly.  The heatsink cools well today.

post #6 of 6
XD, i had a question about putting heatsinks on VRMs, for say a motherboard with 4+1 phase VRMs that tend to overheat and blow, would a heatsink extend that life a bit more or not at all?
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Boinzy
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TOSHIBA X300 HDWE160XZSTA 6TB 7200 RPM Samsung 850 Evo 250GB Asus DRW-24B1ST Cooler Master 212+ 
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Windows 10 Pro 64 bit Acer GN246HL Nixeus Moda Pro Mechanical Keyboard Cherry MX B... Antec Earthwatts 650W 
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