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Is curing thermal compound necessary?


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15 replies to this topic

#1 sjvirchow

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Posted 20 June 2011 - 03:59 PM

I've heard that after replacing or installing a CPU with thermal compound, either the stock it comes with, or something like Arctic Silver, that you need to run Prime95 or some other stress testing application to "cure" the thermal compound. I've NEVER done this. The claim is that it will make your temperatures a little lower.

Can I call B.S.?
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#2 Andrew

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Posted 20 June 2011 - 04:30 PM

Call away!

#3 killerx525

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Posted 20 June 2011 - 04:53 PM

The thermal compound helps to transfer heat without the CPU would easily overheat in matter of a few seconds.

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
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#4 DJBPace07

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Posted 20 June 2011 - 05:28 PM

I've never heard of "curing" the thermal compound. I do run Prime95 after I install the cooling, to make sure it works and to test for stability of new parts.

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#5 killerx525

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Posted 20 June 2011 - 05:31 PM

I've never heard of "curing" the thermal compound. I do run Prime95 after I install the cooling, to make sure it works and to test for stability of new parts.

And your skills in applying thermal compound properly :P

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
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#6 sjvirchow

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Posted 20 June 2011 - 10:57 PM

This bumbling idiot (I mean "qualified professional") says to "cure" it. Yeah, it couldn't hurt, but it's probably not the reason I'd run Prime95 after replacing my CPU. I'd do it, like you said to make sure I didn't screw anything up.

Edited by sjvirchow, 20 June 2011 - 10:58 PM.

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#7 the_patriot11

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Posted 20 June 2011 - 11:38 PM

"curing it" is something some computer geeks suggest to do to make themselves seem smarter I guess. With some of your manufactured computers with your lower grade paste might have to be cured at the factory I don't know, I cant say for certain, but with custom jobs if you use a good paste like arctic silver 5 and OCZ freeze, there is no need to "cure it" running prime95 or other torture tests is a good idea, to check for system stability and heating issues, but chances are them saying to cure it is just someone taking a good idea, adding a different explanation for it, just to make themselves seem smart. Running prime95 on a freshly installed CPU is a good idea (note, on a fresh build, do not leave it running un checked for hours on end. You dont have to sit there, but at least check on it periodically to make sure its not overheating) but not for the reasons listed in that video.

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#8 Andrew

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Posted 21 June 2011 - 12:33 AM

Similar to the myth that polishing the heatsink/CPU mating surfaces (called "lapping" for some reason) improves heat transmission. It certainly sounds like it might work but it's just so much snake oil.

Edited by Andrew, 21 June 2011 - 12:34 AM.


#9 killerx525

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Posted 21 June 2011 - 12:43 AM

Usually you would have to clean the old thermal compound before you apply the new compound, out there is some special liquid where you the old compund then you would use another liquid to purify the surface which i believe it works.

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
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#10 hamluis

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Posted 21 June 2011 - 03:37 PM

FWIW: "Curing" is a term normally applied to some substance requiring time to harden, solidify, etc...in order to become more effective at what that substance is supposed to do.

Thermal paste/grease, whatever you choose to call it...doesn't fall into that category, methinks :).

Louis

#11 killerx525

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Posted 21 June 2011 - 04:21 PM

Well that clears up the mystery.

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
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#12 dpunisher

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Posted 21 June 2011 - 04:31 PM

I'll play devil's advocate.

Sometimes you get better temps after the thermal compound has been through a few heat-cold cycles. This is especially true with factory "TIM" (Thermal Interface Materials) pads, not so much so with liquids/pastes. Whether or not you call this "curing" is up to you.

Lapping works. Not a big difference, but if you are going to spend the time to lap a CPU and heatsink, then more power to you. Too much effort for too little return for my taste. Anything you do to reduce surface variations between CPU/heatsink helps. Figure also lapping a CPU usually voids warranty. In the past CPU cooler quality was worse (warped/rough finish on bases) and the CPU caps were often warped. Time has improved both.

Acetone....acetone....acetone. Besides sounding like a really cool piece of exercise equipment you see on late night ads, it works the best out of everything I have tried so far to clean thermal compound. Works great, no residue left.

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#13 the_patriot11

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Posted 21 June 2011 - 07:37 PM

Dont need any fancy chemical to clean old stuff off, a damp paper towel will effectively remove any tim on the die and heatsink.

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#14 killerx525

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Posted 21 June 2011 - 08:50 PM

You want to be a purify before you apply the new thermal paste.

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
Games: APB: Reloaded, Hours played: 3100+  System2: Late 2011 Macbook Pro 15inch   OFw63FY.png


#15 the_patriot11

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Posted 22 June 2011 - 10:36 PM

If its off its off, Ive never used anything but a damp paper towel to remove old TIM, and have never had a problem, it gets it all off with no problem.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

If I don't reply within 24 hours of your reply, feel free to send me a pm.





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