Dust netting for PCs?

[capsulecorpjx]

My power supply fan blows air into my case.
It is adjacent to my CPU's mini fan, that blows air out of the CPU/Heat sink.

Anyway, the force of the air coming in is overwhelming the air coming out of the CPU Fan.

In effect my CPU fan got clogged with dust, overheating the CPU causing my computer to emergency shut several times.


Is there some thing dust netting I can apply over the pores throughout my computer? Especially over the vent where the air goes into the Powersupply/Computer Case.

If there isn't, then I'd have to open up my computer every couple of months to swab out the dust that accumaltes.

[dglienna]

That would just get clogged faster. The only thing that you can do is to blow out the dust with a can of air periodocally

[RobDog888]

I just did mine last week and it was full of dust like a blanket! Every 6 months should be a good interval.

[dglienna]

Depends on the situation. I can do mine every year or so, but where an app is installed in a material yard, they have to do it every six weeks, or the PC overheats! They fried a few before they started letting the cpu shut down the machine when it overheats.

[RobDog888]

Yes, if your system is not in your house then it would vary like dglienna posted. After checking the dust progress after a few
weeks or months you will be able to gauge the interval thats appropriate for your location.

[DaveBo]

FWIW a Micron case I had had 3 fans on the back all blowing air out, which meant the air was being sucked in (with dust) from every crack and seam on the box, even the holes in the LPT port were clogged with dust.
I reversed all 3 fans to change from a negative to positive pressure in the case and laid some filter material over them to capture incomming dust, works well, though I'm not sure if it's really the best cooling or not.
I suspect that a positive internal pressure also means the air inside is slightly more dense and maybe capable of carrying away more heat???

On an HP system, I reversed one of the 2 fans (the smaller one blowing out) so there'd be more of a flow and slight positive pressure, and again laid some 1/4" thick filter material (not sure what it's called) over the in-blowing fan.
It hasn't gone up in smoke yet!

Have fun, DaveBo

[RobDog888]

What you can do is create an air flow passage in your case. At one end of the case have the fan blowing in, then on the other
side you have the fan blowing out. This will create forced air into the case and forced air out of the case. Usually you may want to have
the exhaust fan near the top of the fan since hot air raises and you wouldnt want hot air being blown through your case.

[StevenHickerson]

I've had my system set up for about a year now and have very little dust netting and I've never cleaned it out. I have 4 fans running in the case though (5 if you count the cpu fan, 6 if you count the psu fan).

I've got a 120mm fan in the front pulling air in, a 80mm on the side window pulling air out, two 80s in the back, the lower one pulling air out the upper one pulling air in. This creates a sort of cylone wind tunnel inside my case and does a terrific job of not only keeping the cpu cool, but hardly any dust netting.

Oh and just to mention my cpu fan is an oversized 100mm fan... Thermaltake.. love that heatsink and fan.