Overclock help (laptop i7-7820HK)

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infam0us1999

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Dec 21, 2014
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Hello, I'm in the market for a new gaming laptop (cannot get a desktop due to work, trust me I would much rather have one but I can't) and was wondering which gaming laptop has good cooling that has an I7-7820HK and GTX 1070. Looking to overclock from 2.9GHz to 4.2GHz I was considering the Alienware 15 R3 and the Sager Np8157 and clevo p650rs. I really like the Alienware as it's thin but I need to know about temps. Help? Maybe MSI / Asus? Any input is welcome.
 
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faalin
I don't not recommend overclocking any laptop as they already heat issues. Alienware are just rebranded dells, haven't played with one since dell bought them out but would guess that the bios is locked and wont let you OC.

I have an older MSI GT60-2od running a i7-4800MQ 2.7Ghz boost to 3.7Ghz with a 780m, while I can OC this I have yet to need to. If your wanting something for gaming the thinner you go the worse the cooling solution you will have.
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faalin

faalin

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Feb 22, 2012
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I don't not recommend overclocking any laptop as they already heat issues. Alienware are just rebranded dells, haven't played with one since dell bought them out but would guess that the bios is locked and wont let you OC.

I have an older MSI GT60-2od running a i7-4800MQ 2.7Ghz boost to 3.7Ghz with a 780m, while I can OC this I have yet to need to. If your wanting something for gaming the thinner you go the worse the cooling solution you will have.
 
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Aditya657

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Apr 11, 2015
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No don't OC laptops. I own a HP with i5200u ( 2.2ghz to 2.7ghz ) with Nvidia 950m and believe me standard cooling is sometimes lacking if I am not sitting below a fan or in the AC. The best would be in which the standard clocks would do for you.
 
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captaincharisma

captaincharisma

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Oct 13, 2004
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just because they put an unlocked CPU in a laptop doesn't really mean they will let you. Dell has alien ware computers with unlocked intel CPU's but they still lock the BIOS down.



 
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homoki.roland

Mar 2, 2018
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I can't believe all the answers. Of course you can OC it.
I usualy OC slightly, and undervolt nicely.
The resulta are: better performance, lower temps, and better battery life.

I had a 17 R3, now I got a 17 R4. I don't know the R4 well yet, but I know my old R3's CPU and GPU fans' resonance speeds, stable undervolts, etc. It worths playing with ;)
 
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sabata4754

Nov 30, 2018
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I'm posting this purely to set the record straight. If anyone doing research on their next laptop finds this article as I did I want to clarify a few things. Any one who says "you cannot OC a laptop CPU" is misinformed. In previous generations this was true. But laptops are good now. Pascal gives you desktop performance graphics cards in laptops, and Intel's latest CPUs provide a similar experience. I previously owned a gt73 laptop from msi with the GTX 1070 (mobile) and i7-6820hk. I kept the 6820hk at 4.3ghz on all four cores and the 1070 at 1950mhz. Both temps stayed at 65-70°C with a custom fan curve. This was my absolute first OC attempt on that cpu specifically, and I probably could've pushed it further I just didn't find it necessary. Granted this was a big hefty laptop with excellent cooling. But then I upgraded to an Alienware 17r4 with the i7-7820hk and GTX 1080 and received a similar result. I think the temps were marginally higher due to a slightly better OC and stronger graphics card 4.4ghz and 1080. Please please spread the word. I'm so sick of people saying laptops can't be OC'ed.
 
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