Corsair H100i Unusual Temperatures

[bokbchoy]

Hi all
Got my H100i set up and working a couple days ago.
I decided to use the cooler for my 3570k and so I went ahead to overclock my CPU to around 4.2ghz at 1.2v. Everything seemed fine until i ran prime95 which ended up giving me 100C results for each core. I was utterly shocked at this result and I am still confused on why this is occuring. I see other fellow overclockers have 4.5ghz or 4.7ghz getting only mid 70Cs or somewhere around there. Could someone enlighten me on how I could match those results and or solve this problem?

 

[Tripp]

what tim did you use?or may you have forgot to put some on?if not maybe its a faulty pump in the h100i

 

[bokbchoy]

i am currently using the one that came stock on the cooler itself.
i did wipe off the old paste from the stock cooler i was previously using before i put on the h100i.
should i be using higher quality tim? such as an ic diamond?

 

[Tripp]

i would suggest not using the stock tim yes, but that still that dont mean your temps should be that high.do you have corsair link running?if so what does it say the pump speed it an what is your fan speed?

 

[bokbchoy]

yes. according to link, both fans (which are stock as well) are running at a fixed 600 rpm.
couldnt find out the pump speed from link but according to speedfan the pump is running at around 2280 rpm (im assuming the pump is the same as the cpu fan)

 

[Tripp]

Yeah pump sounds ok your fans are going a bit slow though for that fin density on the rad

 

[bokbchoy]

what would you suggest me do first?
change out the tim?
i did raise the speed on the fans to performance and not much temp change (~1-3C).

 

[Tripp]

Changing tim will help a bit yes

 

[NeverBackDown]

Tim won't do much good. The stock paste isn't that bad. Try running the fans at 1500rpm for example and see how it helps. Try OC'ing properly and don't just set it at 1.2v start with stock speed and find the lowest volts possible and work your way in small increments from there.

 

[Vlada011]

Normal temps for 3570K on H100-H100i is around 70-80C on 4.2GHz.
I mean normal is and 72 and 78C depend of sample.
100C is more temp for some 4.7-4.8GHz and 1.300V

 

[Grey_beard]

bokbchoy - What is your idle temp @ 4.2? TIM that we used on any of our coolers are one of the best one in the market, thus, changing TIM will not be big of a help, unless of course when you re seat the pump, then you need to re apply an after market TIM.

You said that you've ran the fans in performance mode, what rpm were they running at? Your pump's rpm is where would expect it, so next thing I'd check is the contact between your coldplate and CPU, make sure it's properly seated with good contact.

 

[tinytomlogan]

Need to make sure the back plate is the correct way round too.......

 

[lomez]

Also don't forget to remove the plastic off the copper heat sink the amount of people who do is pretty mad

 

[tinytomlogan]

Also don't forget to remove the plastic off the copper heat sink the amount of people who do is pretty mad

Its massive on the H100i not just a thin piece like on a water block or other heatsink. You actually cant mount it with it on.

 

[Vlada011]

Yes you can't install cooler with that. But I keep that part to cover block from scratch and dust when change paste and clean with Artic Cleaner. That is very useful than.

 

[Bartozy]

I have similar problem... Not sure if i should make another topic on it.
4.3GHz on ~1.25V and 100*C

AX850, MSI Z77A-GD55, 2x4GB 2000Mhz RAM i5 3750k, HD7950

Just i can add that i had similar temps with simple £15 air cooler (Xigmatek Thors Hammer) and it was quieter than this and 5 times cheaper.

Bracket fitted correct side, tried to change thermal compound to MX-2, pump RPM normal (2200-2300) not really sure what else i can do about it... Maybe it is faulty?

Any suggestions?

 

[Grey_beard]

Your pump rpm is where it should be at, but do you know if its actually working? meaning, is there a slight vibration on the pump? just an indication that it's actually pumping water.

What is your ambient and idle temp btw?

 

[Bartozy]

I can't really tell if the is any vibration - I do not feel anything (might be just me).

Ambient temp is 20-21*C and idle between 25-35*C

Just want to point out that sometimes using chrome temp spikes to ~ 50*C. I'm not sure if that's something normal or not...

 

[Grey_beard]

I can't really tell if the is any vibration - I do not feel anything (might be just me).

Ambient temp is 20-21*C and idle between 25-35*C

Just want to point out that sometimes using chrome temp spikes to ~ 50*C. I'm not sure if that's something normal or not...

Idle looks good, I'm pretty sure pump is working and functioning within spec with those temps. I don't think the cooler is faulty - just your load temps on the high side and maybe because of your CPU being overclocked.

 

[Bartozy]

Idle looks good, I'm pretty sure pump is working and functioning within spec with those temps. I don't think the cooler is faulty - just your load temps on the high side and maybe because of your CPU being overclocked.

I found the reason for all those temps. It was the CPU itself. Swapped to other one and everything is OK now.

4.7 GHz with 1.36V idles at ~40*C, ~90*C under prime and ~70*C while gaming.

Fans are set from ~550(lowest possible) to 1800 RPM max. Ambient 21*C.

Thank you for the support.