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powersupply extra cooling

W

werver

n00b
Joined
Jan 27, 2004
Messages
1
I have an Aopen HQ45 case with a 300 W powersupply.
When the computer is used for games the temperature of the CPU rises to 59C and the fan (Papst 80mm) of the powersupply (PSU) rotates very fast and loud.
The fan of the PSU is blowing the hot air (40C) out of the back of the computer. At the bottom of the PSU are small grooves through which the cooling air can enter it.
Next week I'm going to build in a watercooling system for the CPU en GPU. I wonder if it will be helpfull to cool down the PSU to mount the CPU fan (also Papst 80 mm) which of course isn't needed anymore, on the grooves of the PSU to blow in air and to assist the standard fan.
Or to make a hole at the top of the PSU (hottest place) and the computercase and mount the fan out there to such hot air out of the PSU.
Have anybody have experience with such a solution and which of the two will give the best cooling results.
 
How many fans u got..... Are there an even amount blowing in and taking out? cause if u dont have a rapid flow of cool air coming in and going out youll find minnor probs. Watercooling should do the trick though. But even with watercooling think about doing something with fans as well to keep the other stuff cool to.:) Hope that helps
 
Most of the people who cut an extra fan-hole in the PSU casing, put the hole so that it faces towards the ground when the PSU is mounted in the case.

That way it draws air from the CPU/voltage regulator/northbridge section of the motherboard, through the PSU (increasing flow of air over the components within) and out the back.
 
also the top is usually where the pcb is located. cooling that probably won't help much.

I'd think your best bet to keep it quiet would be to cut a hole where the slits are and just put a fan grill over it. That way there is no extra noise of an extra fan, and at the same time the existing fan will be able to have better flow at slower speeds, which will reduce the temp for the same fan speed. And in the end less noise when the pc is working hard.
 
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