Stupidly High CPU Temps

almighty15 said:
Lack of air flow is you're biggest problem, not the CPU or the block, those Noctua fans are **** poor for water cooling.
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I read that article and completely agree with the subjective opinion on the P12s. There is a definite whiney noise at around 900rpm. I got this pair a long time ago in an impulse buy.
But I also got a P12 PWM with my noctua NH-D14 and it is a lot lot lot quieter and lacks the whine, whilst running at higher speeds.

Will look into Noiseblockers etc.

I do actually have an Arctic Cooling F12 from years ago. Might grab a couple and see how they do. I can also get 4 for less than the price of 1 noiseblocker.
 
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I stuck my arctic cooling F12 on the top rad and balls me was it good. Very quiet and pushes a lot of air. Ordered 4 more ;)
 
So by moving some fans around and upping speeds without affecting noise too much I have reduced water temps to a max of 45C in BF3 after about 90 minutes.

Is this still too high?

I haven't received my order of Arctic P12s yet.
 
Disco_P said:
So by moving some fans around and upping speeds without affecting noise too much I have reduced water temps to a max of 45C in BF3 after about 90 minutes.

Is this still too high?

I haven't received my order of Arctic P12s yet.
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Well how has that 5c drop in water temps affected the CPU temps?

And aim to get it down even more... I remember the fluid in my old system used to hit 35-38c when doing hours of heavy gaming.
 
CPU temps now peak at 70C with the GPU in full use too. I am not too bothered about CPU temps, or even GPU as long as the water isn't so hot to the point of causing problems.
 
Most of the cooling is done to the GPU, 50C under full load compared to 80C and it is now running at 0.25v higher. The original plan was to not cool the CPU and use my existing nh-d14 but for the cost of a CPU block it wasn't worth the hassle.
 
It is but I assume that it mostly due to the fact that the GPU is dumping heat so efficiently into the water. Also the case restricting so much airflow causes temps to rise about 10C.

The rule of thumb is that GPU delta is 5C and CPU is 25C. Has anyone else measured CPU deltas?
 
Mounted the pump using plumping O-rings between the metal of the case and the pump itself. This has allowed me to us the pump speed to max without it being audible so I am going to do more science with max pump speed.
 
NoNameNoNumber said:
I found pump speed to have very little effect... What do you mean by CPU delta? Change in what? CPU temp with/without water?
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Yeah, pump speed change resulted in identical temps.

By CPU delta I meant difference between measured CPU temperature and the measured water temperature.
 
It's air flow you need matey.. How thick are your radiators?

EDIT: Never mind, being 30mm thick killing performance too, you need 60mm thick rads.

Thermal dissipation at the low RPM's you're running is very low.

http://martinsliquidlab.org/2012/05/01/alphacool-nexxxos-st30-360-radiator/4/

With your 2 radiators I bet you have ~350w or less of radiator cooling power at the fan speeds you're using which isn't a lot for the hardware you're running tbh.
 
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Get some decent fans, and control them with something. Light use can be silent, while gaming can up the noise since you're making noise anyway.
 
almighty15 said:
It's air flow you need matey.. How thick are your radiators?

EDIT: Never mind, being 30mm thick killing performance too, you need 60mm thick rads.

Thermal dissipation at the low RPM's you're running is very low.

http://martinsliquidlab.org/2012/05/01/alphacool-nexxxos-st30-360-radiator/4/

With your 2 radiators I bet you have ~350w or less of radiator cooling power at the fan speeds you're using which isn't a lot for the hardware you're running tbh.
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Unfortunately I cannot physically fit thicker rads in the case. I will be getting a bunch of new fans that martinsliquidlab likes that I can run at 1000rpm without them being too loud.

Ch3m1c4L said:
Get some decent fans, and control them with something. Light use can be silent, while gaming can up the noise since you're making noise anyway.
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Fans are on the way. I haven't found a solution to control them with, apart from messing around in speedfan.
 
as I said in the other thread, can you not use msi command center, or is that only on the "gaming" series of their boards and not mpower? Might be worth getting a fan controller?
 
almighty15 said:
http://www.overclockers.co.uk/showproduct.php?prodid=WC-011-AQ&groupid=962&catid=2138

You can plug some temperature probes into that and program it to ramp up fan speed when water temp reaches a certain level.
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That is a lot of money and seems like it would take up quite a bit of space.

Ch3m1c4L said:
as I said in the other thread, can you not use msi command center, or is that only on the "gaming" series of their boards and not mpower? Might be worth getting a fan controller?
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I will have a look into using command centre again, but last time I used it there was no way for it to automatically load your fan profile. You had to manually load it up and load the fan profile and hit apply every time you boot.
 
So the Arctic Cooling F12s arrived. Installed them (twice cause I forgot how to cable manage) and set them to about 1000rpm. Just as quiet as my old fans but holy bawls have the temps dropped. So last night I was getting around 47C water temps and now it is 38C.

Is this now low enough? GPU is just stupid cool at 42C and CPU temps are maxing on the hottest core at 62C.
 
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