Turbo boost stops when CPU reaches 76°C

Gandalf the Golden · Jun 1, 2014

For some reason, that's happening. Intel says this i7-4500U can reach 100°C, so why won't turbo boost keep on?
Is there any way to force the processor to stay in turbo boost or to prevent the loss of frequency?

damric · Jun 1, 2014

Yeah, cool it.

Gandalf the Golden · Jun 1, 2014

Any other idea?

k1114 · Jun 1, 2014

There is no other idea. It's getting to hot so it slows down. Being above 80c is not recommended hence it turns off turbo to not get that hot. 100c is when it turns off to protect itself but it'll throttle down to 800mhz ~90c to try to cool down so it doesn't have to shut off.

Gandalf the Golden · Jun 1, 2014

A simple thermal paste should solve it, then?

damric · Jun 1, 2014

Gandalf the Golden :

If it was a bad mount, it could help. If it was pasted and mounted correctly already then it's not going to help really maybe 3-5'C tops.

I will say that it is worth inspecting, since it is such a simple fix.

Gandalf the Golden · Jun 1, 2014

I don't think it was a bad mount, as I didn't do it myself - I bought from Dell (and sorry, forgot to say, it's a laptop).

damric · Jun 1, 2014

Send it back to Dell.

k1114 · Jun 1, 2014

If it's a dell inspiron like google is coming up with, sending it to dell makes no difference. It's a known issue, it gets hot and throttles, many poorly designed laptops do. You could try better tim, you can try a cooling pad, turn up the ac, whatever it takes to cool it down.

damric · Jun 1, 2014

Cooling pads do make a huge difference, even the passive ones.

Gandalf the Golden · Jun 2, 2014

Hmmm... This may be a idiot question, but when we talk about thermal past and cooling pad aren't we talking about the same thing? I mean, that rectangle equipped (generally) with one or two fans...

k1114 · Jun 2, 2014

Completely unrelated besides dealing with cooling. Thermal paste is what is between your heatsink and cpu. http://www.newegg.com/Product/Product.aspx?Item=9SIA4DA1GN6641 A cooling pad is what you put your laptop on top of. http://www.newegg.com/Laptop-Cooling/SubCategory/ID-319

Gandalf the Golden · Jun 3, 2014

I thought they were the same thing... I meant the cooling pad from the beginning. I did a translation mistake...
A information that I'd like to share: Yesterday, the thermometers reached 15°C (59°F)... talking about Brazil, that's quite cold, we have normally 20-33°C! And I noticed that the processor wouldn't reach 75°C even without capping my FPS, as I usually do.
Therefore, I think that's what I need... around 15°C. Do you think a simple cooling pad will do the job?

damric · Jun 3, 2014

Gandalf the Golden :

Yes, any aluminum piece of 5mm sheet metal will be fine.

Gandalf the Golden · Jun 3, 2014

So a simple one will be fine or not? I can't figure out how ironical you were (lol!).

damric · Jun 3, 2014

Gandalf the Golden :

True statement.

Gandalf the Golden · Jun 3, 2014

So I'm getting a $20 pad... it should help.
Thank you guys a lot.

Turbo boost stops when CPU reaches 76°C

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