High Temps for Water Cooling?

UF8FF

Reputable
Mar 8, 2015
4
0
4,510
Greetings All,

I know this is probably a question that gets asked a lot, but I figured I'd ask anyway.

I just finished a build on my MSI Krait Z97S with a 4790k and I'm running an EK CPU / GPU block setup with two radiators. At idle, as I type this (I have a D5 pump running at 4 right now) I'm hovering around 27-30 degrees. I did a stress test and I'm seeing about 75 degrees at 100% (4.0-4.4 with Turbo). I turned on OC genie to play a bit and hit 4.5 in the intel extreme tuning utility benchmark and got up to 89 degrees. I feel like that's quite high for 4.5 GHz and water cooling. Any recommendations? I'm planning on using Prime95 next time for the benchmark -- I take it the intel one sucks?

Here's a picture of the build, if anyone is interested :)

c7kayFt.jpg



Edit:

Here's a recent screenshot from my last stress test in Prime95 with just the OC genie on.

XIHN3G7.png
 
Solution
first of all, sweet build. really love the hard tubes.

ok, now for the answer.
every CPU is different, so it might just be that you got one of those CPU's that just doesn't want to overclock, even tho you are watercooling it.

also, it might just be a faulty sensor. you never know.

davidarad02

Admirable
first of all, sweet build. really love the hard tubes.

ok, now for the answer.
every CPU is different, so it might just be that you got one of those CPU's that just doesn't want to overclock, even tho you are watercooling it.

also, it might just be a faulty sensor. you never know.
 
Solution

rubix_1011

Contributing Writer
Moderator
Using GUI overclocking tools usually means you end up with more voltage being used than is needed, resulting in higher temps. If you really want to OC, check into some research and get acquainted with your BIOS settings...this is where OC should be done...and I don't mean in the 5%, 10%, 15%, 25% menu. :)
 
I don't see anything unusual regarding your stock temperatures as the 4790K is after all overclocked to 4ghz out of the Intel factory door, so some of your overclocking headroom regarding load temperature is already used up.

As rubix_1011 told you using any type of auto overclocking such as OC Genie can spike high CPU voltage to remain operating system stable, you'll be much better off taking full manual control over your overclock through the BIOS so you can better manage the applied voltage to the CPU.

Additionally you mention 2 radiators but not their sizes, if you don't have enough radiator cooling field to handle the overclock load, you get high load temperatures, even though 75c stock load is no big deal to a 4790K, the 4.5ghz took you to 89c, next steps up to 4.6ghz ~ 4.7ghz or 4.8ghz will be seriously high load temperatures.

You can only overclock as high as your cooling system will control your load temperatures with any CPU.

Many feel that custom water cooling is the cure all for high overclocks, and it very well can be if there is enough radiator cooling field to do the job, but if that is not the case it can be a seriously disappointing cooling investment, that most just end up being satisfied with because you have no other choice but to be satisfied, because the cooling can only handle so much load.

That doesn't take away the gut punch feeling of an investment that falls short of expected cooling goals, and that's usually from a lack of research of expected goals versus the cooling capabilities of the hardware bought to do the job, and trying to cram it all into one case always limits what could have been used to custom water cool in the first place.

Your build looks good, that's some great work with the hard acrylic tubing, but cooling wise it is what it is.

http://www.overclockers.com/guide-deltat-water-cooling/

 

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