Improve cooling on I7-8650U (epicly solved)

[SuperCharged148]

I'm making this short. The temperatures on this cpu is kinda high since I have a laptop with bad cooling. The temps didn't drop after replacing the thermal paste with silver mx-4 but adding more heat to this cpu. Any tips?

Here's the max temperatures in case you'll need it :

View attachment 166855

if its bothering you i think you should buy this and give it a try

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[TheTigerJunior]

if its bothering you i think you should buy this and give it a try

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KLIM Wind Laptop Kühler - Leistungsstark Wie Kein Anderer – Schneller Kühlvorgang - 4 Lüfter PC Notebook PS4 - Belüfteter Laptop Ständer, Gamer Gaming Stützhalterung - 2021 Version - Blau - Kostenloser Versand ab 29€. Jetzt bei Amazon.de bestellen!

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kinda expensive in my country. i think it may be useful around cool or cold areas

 

[SuperCharged148]

kinda expensive in my country. i think it may be useful around cool or cold areas

u can also try like putting something under the laptop like here

could not explain it lol i hope u understand

 

[TheTigerJunior]

u can also try like putting something under the laptop like here

View attachment 166881


could not explain it lol i hope u understand

luckily my sister gave a cheap cooling fan though. didn't do much but still helps

 

[AOne]

These temps are far, far from high. Absolutely no worries. I don't understand all the hustling?!? They're better from 95% of the other laptops in this class. Up to mid 90s all is safe and long lasting.

 

[TheTigerJunior]

These temps are far, far from high. Absolutely no worries. I don't understand all the hustling?!? They're better from 95% of the other laptops in this class. Up to mid 90s all is safe and long lasting.

lmao i guess you're right. i'm just worried cuz my previous laptop really heats up bad and im scared it might explode somehow. but now it's still alive even though gt750m is not good but better than intel graphics

Your temps are completely fine. My laptop runs much, much, hotter.

View attachment 166860

This is a hot CPU. Your CPU is not hot.

My CPU was pulling 80.556 watts while gaming. It will pull 95 watts in a heavy cpu-load like cinebench 20 where the GPU isn't also engaged. Laptops just can't keep CPU's cool when they use that much power, but a 17 watt ULV cpu is way easier to keep cool.

what clockspeed do you get when heavy load? mine dropped to 2.8 ghz at 17w

 

[JuanBC]

I have a laptop from the company that I work, a dell i5 8250u Latitude 5490
One thing that I notice, @SuperCharged148 showed, is that when I have the laptop sitting on the desk, it spins the fan faster, but if I use a stand, it simply does not, simply not audible. On the office, it was over wooden desks, but I don't that the material of the deskt makes to much difference. Just don't use on bed hahaha
I'm not monitoring temps on this work laptop, But as everyone is saying, these temps are just fine, if you are worried, use a stand, or something to create space on the bottom.

Or if you are like Linus, you can custom WC a Laptop hahhaa
cheers

 

[TheTigerJunior]

I have a laptop from the company that I work, a dell i5 8250u Latitude 5490
One thing that I notice, @SuperCharged148 showed, is that when I have the laptop sitting on the desk, it spins the fan faster, but if I use a stand, it simply does not, simply not audible. On the office, it was over wooden desks, but I don't that the material of the deskt makes to much difference. Just don't use on bed hahaha
I'm not monitoring temps on this work laptop, But as everyone is saying, these temps are just fine, if you are worried, use a stand, or something to create space on the bottom.

Or if you are like Linus, you can custom WC a Laptop hahhaa
cheers

Yeah, that's a good point. I guess temps don't matter until you feel something isn't right or somethin.

 

[Fizban]

what clockspeed do you get when heavy load? mine dropped to 2.8 ghz at 17w

It's usually somewhere between 3.9 and 4.1 GHz on every core when under heavy load. It's rated to do 4.3 GHz on all cores, but the thermals don't allow it to maintain that under a heavy load, even with thermal grizzly kryonaut and fujipoly thermal pads on the heatsinks.

 

[TheTigerJunior]

It's usually somewhere between 3.9 and 4.1 GHz on every core when under heavy load. It's rated to do 4.3 GHz on all cores, but the thermals don't allow it to maintain that under a heavy load, even with thermal grizzly kryonaut and fujipoly thermal pads on the heatsinks.

Damn the performances are good. You don't wanna underclock it? 3.5ghz seems good for high end I think.

 

[AOne]

I wonder what are your temps without underclocking and just undervolting. Would you do this experiment, to max everything up, undervolt, run a CB20 test and post the results. In my case the results jumped far from average and temps remained under 90C°. (Of course, had to remove the stock paste on the second week since new as it was rubbish and apply proper one).

 

[TheTigerJunior]

I wonder what are your temps without underclocking and just undervolting. Would you do this experiment, to max everything up, undervolt, run a CB20 test and post the results. In my case the results jumped far from average and temps remained under 90C°. (Of course, had to remove the stock paste on the second week since new as it was rubbish and apply proper one).

My cpu is already undervolted. The temps didn't change but there's a small improvement on the clockspeed since my cpu is power throttling. The CB20 was 604.

 

[AOne]

Ok, but what were the actual temps when undervolted and not power throttled. Could you finish a test with no yellow/red warning (completely black screen in Limit reasons) from beginning to end in CB20 and TSBench all threads long test?

 

[TheTigerJunior]

Ok, but what were the actual temps when undervolted and not power throttled. Could you finish a test with no yellow/red warning (completely black screen in Limit reasons) from beginning to end in CB20 and TSBench all threads long test?

The cpu would overheat and starts thermal throttling. I've tried that before.

 

[TheTigerJunior]

guys i think i found something, maybe it would be the VRMs heating up since the heatsinks only transfers cooling solution to the cpu and not the VRMs unlike other laptops which some of them put thermal paste or thermal pads to the VRMs / MOSFETs. i never rlly thought the VRMs and MOSFETs could heat up