Good air-cooler good enough for overclocked i7-5820K

RienS · 2014-11-17, 20:48

Hi,

I am building a pc that I want to use it for Prime95 24/7. It will be built with an overclocked intel i7-5820K (from 3,5 to 4,2-4,5 GHz) with a Cooler Master Hyper 412S aircooler (one of the best aircoolers atm i heard.) Is this cooler suitable or must it be upgraded to a liquid cooler (Corsair Hydro H80i)?

Thank you

paulunderwood · 2014-11-17, 21:06

You will probable be best off by running at stock. Why overclock by 20% when you will most likely get errors on long runs, while searching for the next Mersenne prime?

Prime95 · 2014-11-17, 21:17

Quote:

Originally Posted by RienS

Hi,

I am building a pc that I want to use it for Prime95 24/7. It will be built with an overclocked intel i7-5820K (from 3,5 to 4,2-4,5 GHz) with a Cooler Master Hyper 412S aircooler (one of the best aircoolers atm i heard.) Is this cooler suitable or must it be upgraded to a liquid cooler (Corsair Hydro H80i)?

Thank you

Overclocking the CPU is not nearly as important as buying fast RAM. Buy at least DDR3-2400.

Mark Rose · 2014-11-17, 21:33

Quote:

Originally Posted by RienS

Hi,

I am building a pc that I want to use it for Prime95 24/7. It will be built with an overclocked intel i7-5820K (from 3,5 to 4,2-4,5 GHz) with a Cooler Master Hyper 412S aircooler (one of the best aircoolers atm i heard.) Is this cooler suitable or must it be upgraded to a liquid cooler (Corsair Hydro H80i)?

Thank you

The best anyone has overclocked that CPU so far is about 4.3 GHz, and it's not stable for long.

paulunderwood · 2014-11-17, 21:37

Quote:

Originally Posted by Prime95

Overclocking the CPU is not nearly as important as buying fast RAM. Buy at least DDR3-2400.

I have my 2400MHz RAM running at 1800MHz now as I was experiencing NMI errors and had a much unwanted reboot

pinhodecarlos · 2014-11-17, 21:59

i7-5820K uses DDR4, not DDR3.

RienS · 2014-11-17, 22:02

thanks for the fast reply all. I go for a non-overclocked i7 4790K then and a 8 GB DDR3. Also a Corsair Hydro Series H60 cooler just to be sure my cpu won't overheat

Prime95 · 2014-11-17, 22:06

Quote:

Originally Posted by paulunderwood

I have my 2400MHz RAM running at 1800MHz now as I was experiencing NMI errors and had a much unwanted reboot

I feel your pain. One of my Haswells isn't quite stable at 2400. I downclocked to 2133 and have had no issues since. BTW, G.SKILL was the manufacturer of the memory that I cannot make run as fast as the manufacturer claims it should.

Quote:

Originally Posted by pinhodecarlos

i7-5820K uses DDR4, not DDR3.

Good catch.

RienS · 2014-11-17, 23:03

Quote:

Originally Posted by Prime95

I feel your pain. One of my Haswells isn't quite stable at 2400. I downclocked to 2133 and have had no issues since. BTW, G.SKILL was the manufacturer of the memory that I cannot make run as fast as the manufacturer claims it should.

Good catch.

hmm, maybe a 16GB DDR3 2400Mhz 2x 8GB (Corsair Dominator Platinum - High end) is a better option then. It is way more expensive but it has a better cooling function.

kracker · 2014-11-17, 23:55

Quote:

Originally Posted by RienS

hmm, maybe a 16GB DDR3 2400Mhz 2x 8GB (Corsair Dominator Platinum - High end) is a better option then. It is way more expensive but it has a better cooling function.

You need DDR4, not DDR3. It won't work.

paulunderwood · 2014-11-18, 00:01

DDR3 is apt for the http://ark.intel.com/products/80807/...up-to-4_40-GHz (see post #7)

2014-11-17, 20:48	#1
RienS Nov 2014 2³ Posts	Good air-cooler good enough for overclocked i7-5820K Hi, I am building a pc that I want to use it for Prime95 24/7. It will be built with an overclocked intel i7-5820K (from 3,5 to 4,2-4,5 GHz) with a Cooler Master Hyper 412S aircooler (one of the best aircoolers atm i heard.) Is this cooler suitable or must it be upgraded to a liquid cooler (Corsair Hydro H80i)? Thank you

2014-11-18, 00:01	#11
paulunderwood Sep 2002 Database er0rr 7×23×29 Posts	DDR3 is apt for the http://ark.intel.com/products/80807/...up-to-4_40-GHz (see post #7) Last fiddled with by paulunderwood on 2014-11-18 at 00:17

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2014-11-17, 21:06	#2
paulunderwood Sep 2002 Database er0rr 7·23·29 Posts	You will probable be best off by running at stock. Why overclock by 20% when you will most likely get errors on long runs, while searching for the next Mersenne prime?

2014-11-17, 21:59	#6
pinhodecarlos "Carlos Pinho" Oct 2011 Milton Keynes, UK 3·1,721 Posts	i7-5820K uses DDR4, not DDR3.

2014-11-17, 22:02	#7
RienS Nov 2014 2³ Posts	thanks for the fast reply all. I go for a non-overclocked i7 4790K then and a 8 GB DDR3. Also a Corsair Hydro Series H60 cooler just to be sure my cpu won't overheat