Water cooling - Temp going up

[The Borg]

Hi all,

Some help please. I have an AMD X2 4800+ with a Thermaltake Bigwater water cooling system installed. I used AS5 on the chip, and lapped it a bit.

Over the last week or so, I have been noticing that my CPU temperatures are creeping up slightly. I have actually had to reduce the overclock slightly to prevent the machine hanging. Funny thing is that Winter is on its way here, and the ambient temperatures are dropping, yet I am still having the high CPU temperature problems.

The water cooling system comes default with 3 fans on the radiators (1 single and 1 double). I added another 3 fans to this. I also used antifeeze to make up for what was needed with the original antifreeze that came with the kit.

The pump has been replaced as the original one failed after a few months.

Any ideas on where to look for a problem? Pump not pumping properly, antifreeze need thining out?

Any help will be appreciated.

 

[MDE]

Have you blown the dust out of the radiator? The only other thing I could think of is an obstruction in your water flow (blockage in a line or waterblock) or a failing pump, but you'd probably hear the pump if it was on its way out.

 

[The Borg]

Thanks. Just done that before I posted. Not much dust anyway. The temps dropped by maybe 2°C.

I cannot think of a blockage, unless the fluid is getting thinker. No noise from the pump, and if it had failed, the temps would rocket I suppose.

 

[MDE]

Sometimes when dissimilar metals (usually aluminum and copper) are mixed the the loop they corrode into the fluid and get caught in the blocks or wherever, it's not at all uncommon.

 

[aigomorla]

Originally posted by: MDE
Sometimes when dissimilar metals (usually aluminum and copper) are mixed the the loop they corrode into the fluid and get caught in the blocks or wherever, it's not at all uncommon.

SO TRUE!!

thermaltake aqua bays sometimes use ALu.

Also, im guessing its your flow. Your pump maybe on the fritz again. The bigwater isnt a very great kit. You'll probably see the same temps on a tuniq tower.

Dont compare your kit with per say a kit like mine. The price difference between thermaltake and the standard h2o cooling kit is about half. Meaning you need to buy 2 thermaltakes to = a medium quality waterkit.


So that should tell you a lot about thermaltake. My recomendation, use it until your pump dies again, or you hit another temp wall. Then swap it out for a tuniq tower, ifx-14, or pm me for a completely new watercooling idea.

However... the last option be prepared to spend ~ 220 - 260. in h2o parts.