Thermal compound for near max temp laptop CPU

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thanatos2k

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May 10, 2016
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I've got a Dell Latitude E7250 laptop with a i7-5600U CPU. The thing runs near 85-100c most of the time (under load) so I'm wanting to replace the thermal pad with something better.

Given that high of a temp, is that more like a video card workload than a CPU load? In analyzing the various thermal paste reviews here they appear to perform somewhat differently depending on what workload simulating.

Basically just looking for whatever will make it the coolest temp-wise, don't care about warranty, difficulty, value, etc. Just want the thing as cool as possible.
 
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ihog


What do you mean "under load?" 100%? You should use a monitoring program to check. I use HWiNFO.



It's hard to tell. You have to monitor GPU/CPU load. But that high of a temp is just not good.



If you're looking for actual paste and not a pad, then I recommend this...
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ihog

ihog

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May 22, 2012
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What do you mean "under load?" 100%? You should use a monitoring program to check. I use HWiNFO.



It's hard to tell. You have to monitor GPU/CPU load. But that high of a temp is just not good.



If you're looking for actual paste and not a pad, then I recommend this: http://www.newegg.com/Product/Product.aspx?Item=N82E16835186038

Have you cleaned out dust? Do you use it on your lap? Is the fan working properly, if there is one? I'm trying to figure out why the temp is so high. Ineffectively applied thermal paste usually isn't the reason in laptops.
 
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thanatos2k

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May 10, 2016
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Those temps are reported by Dell's pre-boot system assessment diagnostics as it tests the CPU load. There's no OS or drives in it ATM, just trying to get it stable enough to start to use. Before I replaced the Dell thermal pad thing it was tripping as it hit 105 during the diagnostics. It would hard-trip like that inside windows or osx also when it was under load, though I wasn't monitoring temps at the time it's pretty obvious when the machine cuts power when the fan is at max.



Currently I don't have an OS on it, and it is sitting flat on a glass desktop till I get it stable. Definitely clean of dust and all that. I think it's just that the CPU is hot and the laptop is a tiny 12" ultrabook and they didn't properly engineer it. Dell has replaced the motherboard once and I've put in another heatsink (the 1 heatpipe on the original was slightly folded, which I assume reduced flow) and since then it's not tripping, but it's still super close so I'd like a bit more headroom. I don't mind it running hot, I just don't want to have to under-clock the thing just to get it not to power off.
 
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thanatos2k

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May 10, 2016
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I picked up a 20g tube of that and it has not broken 75c in the same Dell diagnostic program after a 30 min test of 16gb memory using both cores. 80c was the starting point before, and it went up from there, so great success!

Love the holes on the side of the MX-4 tube too.
 
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Aghanem

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Dec 8, 2016
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Sorry for bringing this up again, but I'm facing the same issue with same laptop and similar CPU. Dell replaced the motherboard twice now and the issue persist. Are you saying that the original thermal paste from dell is not efficient as this ? How is it running at the moment ? is it silent ? When you mentioned that it didn't hit the 75 c in dell self test, was the turbo boost enabled in BIOS ?

Thanks a lot.
 
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