Closed Loop cooling and CPU Temps

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Joined
30 Jun 2010
Posts
24
Hi guys,

So I have a Corsair closed loop liquid cooling system (I think its the H80i, it has a button on it and three white lights to around the button so show what level you have it on), its been on from build by OcUK a couple of years or so ago. I think it may now however be on its way out.

I booted my rig up the other day and one of the fans on the radiator (which is plugged into the main corsair cooling unit) was constantly revving up and down. I opened up the case and saw there was a massive build up of dust and stuff on the rad on both sides so I cleaned it all up and reattached.

Now I get the situation where either the fans spin constantly at a high RPM or one of the fans doesn't spin at all and the other spins at a high RPM (When I say high I mean about 2800 rpm, maybe higher, In any case its noisey).

It never used to do this, when I used to first turn the rig on it would spin up the fans high then when I hit windows it would lower them back down to a sensible level and to be honest I'd never really hear them even during long gaming sessions. Now they are constantly audible.

So my first question, has anyone had this before / does it sound like somethings going wrong?


I also now seem to have a temps issue with my CPU, when gaming (running BF on ultra) most of the four cores of my i5-2500k hit 80 or 81 degrees according to HWMonitor. Have discussed this with mates and they think this is too hot?
The annoying thing is I never looked at this stuff before these fan issues so I have no benchmark.

I've reseated the CPU, got some new, top of the line diamond thermal paste and applied that, cleaned the dust out of everything, the works, and nothing seems better

So my second question is, is this too hot? Does this maybe point again to the cooling unit being defective?


Finally, assuming that the cooling unit is defective, could you recommend a good replacement please? :)
 
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