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Temperature problems with my H70 closed loop watercooler

post #1 of 15
Thread Starter 
Hi, I have posted numerous times on the official Corsair forums about this however have been unable to get any satisfactory replies so hopefully this will prove more helpful.

I currently have an H70 closed loop watercooler on my i7-950 and I am finding the level of cooling it's giving underwhelming and it's basically capping the level at which I can overclock the CPU. I know I can get it to go faster, however I am not really happy with the temperatures I'm getting as it is, let alone going any faster.

I currently have it set up with 2 Artic Cooling FP12 PWM fans, though I have gone through many different fan & termal compound combinations. I have used Gentle Typhoons which gave a similar temperature to the current fans. However none of this is having a significant effect on the temperature.

I live in Australia, so we are just leaving summer at the moment so ambient room temperatures are a little higher than they will be later in the year, however this seems to have a greater effect on the CPU temperatures under load than any combinations of fans or thermal compound.

I really do like the look of the H70 through my side-window panel, however the temps I'm pulling idle (55 C) & under load (90 C) are really cramping my overclocking capability.

If anyone has any helpful advice I would gladly take anything onboard as the piles of spare 120mm fans are starting to make a 'cheap' watercooling option anything but.

Thanks in advance, krs
post #2 of 15
Those are really high temps, are you sure you're applying the TIM correctly?
post #3 of 15
Quote:
Originally Posted by E-Peen View Post
Those are really high temps, are you sure you're applying the TIM correctly?
X 2. Also make sure that the fans on the radiator are blowing in the same direction. I have an H70 on my i7 950 and only got up to 49c under load. Its not overclocked right now but your temps shouldnt be as high as they are now.
post #4 of 15
unless your overclocking that ALOT there is a problem

as someone said make sure both fans are blowing in the same direction
1 should be on each side of the rad
1 will blow air into the rad and the other one will be pulling air away from the rad so the airflow is in the same direction on both fans
if this is the case
get some good tim (at least artic silver 5) radio shack has as5 if you need it and staples has antec silver which is the same stuff
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HeatKiller
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post #5 of 15
Thread Starter 
hehe, yes, both the fans are blowing in the same direction, but I have them setup as an exhaust rather than an intake for aesthetics mainly, however the ambient temperature inside my case is within a degree of the ambient room temperature.

The high temps I'm getting are reasons why I'm posting!

With the standard TIM that was applied to the H70 initially I was getting similar temperatures, which is why I tried some Zalman ZM-STG2 which I had left over from installing the VF3000F on my GTX 470. This resulted in maybe a 1-2 degree drop in overall load temps so I bought some Artic Silver 5 which has dropped load temps by another 1-2 degrees.

But basically I'm at my witt's end and the official Corsair forums have been anything but helpful! Though assuming that the TIM is applied correctly and the fans I'm using are ok, the temperatures should not be this high, would that imply something wrong with the H70 or it's installation itself?
post #6 of 15
How many RPM is the pump turning at?
Grog
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Grog
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post #7 of 15
Quote:
Originally Posted by Caleal View Post
How many RPM is the pump turning at?
THat was what I was thinking...

Check the RPM's on the pump. Should be around 1400RPM, if its not, then something is wrong. If the water is not circulating properly that could be the cause of your high temps.
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post #8 of 15
Thread Starter 
I have the pump connected to the 'pwr fan' socket on my motherboard which from BIOS tells me it's at ~1340 RPM, should I try connecting it directly to the power supply via molex adapter?
post #9 of 15
Quote:
Originally Posted by krsboss View Post
I have the pump connected to the 'pwr fan' socket on my motherboard which from BIOS tells me it's at ~1340 RPM, should I try connecting it directly to the power supply via molex adapter?
No it wont make a difference. The RPM's sound about right. It may be poor contact with the CPU. Are you positive the cpu block is sitting flush on the CPU itself?
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post #10 of 15
What case? (Sorry...found its an 800D) Did you blow dust out of the rad?

You are using the H70 as exhaust...I'm thinking poor case airflow to begin with.

Try this:

Remove the side panel of your case and blow a house or desk fan (on high) into the case. Monitor your temps as usual performing the same benchmarks, gaming, etc.

If your temps drop, you obviously have an airflow issue. If your temps remain the same, there is an issue with the cooler, the mounting or the fans.
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