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Small Heatsink mating surface equals too much thermal paste?

post #1 of 7
Thread Starter 
Hi all,

I have had this site bookmarked for a while. Glad to finally join up.

I am building my 3rd plus machine, and have a few questions. I put the AMD 965 cpu into the Gigabyte MA785GMT-UD2H that I bought a year ago for this project and broke out the new Arctic Cooling MX-2 (non-electrically conducive) and applied what I think was a fairly thin even layer to the cpu, (I only have ever done it myself once before) and when I fastened on the Zalman CNPS5X I noticed it didn't fully cover the cpu. There is 3 mm or so exposed top and bottom. Will this be alright? I am concerned about the thermal paste that is also therefore exposed. Not being sandwiched between two surfaces will it cause a problem? Melt, run? Should I try to scrape it off? Or will it just sit there for years of happy gaming?

The CNPS5X fits great on this mobo with plenty of room for the RAM and also fits very well in the micro atx IN WIN Dragon Slayer case fyi. That was a concern of mine to be honest.

Thanks for any experienced feedback,

Sierra
post #2 of 7
Yeah it should be fine. Heat is mostly only in the middle of the cpu. build the comp and run prime 95 to see your temps if they get to 70c then you should be worried.

Edit: Welcome to OCN!!!
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post #3 of 7
I suggest a reseat. take it off clean both surfaces and then apply a very small dot of thermal paste to the center, about the size of an uncooked grain of rice.
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post #4 of 7
Quote:
Originally Posted by eclipseaudio4 View Post
I suggest a reseat. take it off clean both surfaces and then apply a very small dot of thermal paste to the center, about the size of an uncooked grain of rice.
He'll be fine I covered my e7500 with thermal paste and the stock Intel heatsink comes no where close to covering the whole processor and it's fine with good temps.
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post #5 of 7
Thread Starter 
Thanks nbmjhk6 and eclipseaudio4!

I really appreciate the welcome and the advice. Let me ask a question from another point of view. Let us say I had covered (or just about) the heatsink mating surface and then attached it to the mobo and cpu, naturally some of the cpu would be exposed but without the extra thermal paste. Would this be ok? Or just not ideal?

post #6 of 7
Quote:
Originally Posted by Sierra View Post
Thanks nbmjhk6 and eclipseaudio4!

I really appreciate the welcome and the advice. Let me ask a question from another point of view. Let us say I had covered (or just about) the heatsink mating surface and then attached it to the mobo and cpu, naturally some of the cpu would be exposed but without the extra thermal paste. Would this be ok? Or just not ideal?

Actually I think this would be worse as none of the heat on the outside of the heatsink would get dissipated.
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post #7 of 7
Thread Starter 
Ok, Thanks a lot! I will report back when I have it running and tested.

*salute*
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