Fan question

[Seabass]

I got a PIII 600 with a Golden Orb. I also have a 120 mm fan right behind it with a plastic exhaust, here is my question

Would it be better to blow air in or blow it out?? From what i've been reading getting rid off hot air is better than blowing air in.

Please help.......

 

[GauntMan]

Well, IMHO you´re best of blowing air in AND blowing it out. Use two equalf fans and thats the best way to go. I´ve got one 120mm fan in the bottom of the case and one on the top. The fan in the psu is boarded up and shut down.

However if I have to choose only one fan I would go for one pulling air out. Be sure to place it as high up as possible ot you´ll have a pocket of hot air in the top of your case. Not good for the cd-roms.

/GM

 

[stool]

GauntMan (Feb 15, 2001 12:58 p.m.):
Well, IMHO you´re best of blowing air in AND blowing it out. Use two equalf fans and thats the best way to go. I´ve got one 120mm fan in the bottom of the case and one on the top. The fan in the psu is boarded up and shut down./GM

If I was you, I'd seriously reconsider having the PSU fan shut down and closed off. The PSU generates heat by itself, warranting cooling, and having the extra fan exhausting heat does no harm at all. Seems as if you are shortening the life of your PSU.

 

[Mr_Goat]

Ya stool is right about that...think cpus get hot? try touch the transistors in the PSU...

Think of it this way...if the PSU didn't need some cooling then why would companies spend money on making them and sticking in there...

Just some food for thought

 

[GauntMan]

Thank you for worrying about me. It´s no problem because the top fan is placed in the top back of the case. This makes it pull the air through the PSU (it´s got holes inte top to) since it is seated almost at the top.
Ohh, be sure I know the frying capacity of those circuits, they really are hot.

Again thanks for the concern.

/GM

 

[tweak]

Bottom front fan should blow, rear top should suck.
and yes have the psu fan on also.

 

[Slake]

GauntMan (Feb 16, 2001 09:07 a.m.):
Thank you for worrying about me. It´s no problem because the top fan is placed in the top back of the case. This makes it pull the air through the PSU (it´s got holes inte top to) since it is seated almost at the top.
Ohh, be sure I know the frying capacity of those circuits, they really are hot.

Again thanks for the concern.

/GM

Still sounds like a disaster in the making to me. How is air circulating through the psu ? How long has it been running like this ? Maybe a blow-hole over the PSU would be a good idea. I'm not criticizing you, cuz I don't know spit. Just trying to learn .

 

[JaY_III]

Got software monitoring? odds are you do so....
Try both ways and tell us what worked better for you. Changing the airflow of a fan is very easy. So that shouldn't take you long at all.

So if you could please tell us what worked best for you.
For me, sucking the hot air of the back of my slotkit work better than blowing air on it. just something i have learnt from a simple test

 

[GauntMan]

Just making things clearer. There are holes in the bottom of the psu. So much holes it´s more hole then bottom. For some reason there are an equal amount of holes in the the top. You colud almost say it´s a grill on both sides. The space between the top of the case (and the fan) and the psu is about 15 mm. Since I´ve filled up the 5,1/4" bays with CD-roms/burners/dvd there is almost only one way for the air to go and that´s through the psu. I started with the psu-fan on but the 120mm at the top is so powerful the air actually got sucked in through the psu-fan, not to mention the noise.

I say that in my case there is more air going through the psu now than with just the psu-fan. Also the mobo has an extra tempprobe that I mounted in the psu and the temp actually is lower now than before (44C -> 36C).

But if the psu were seated lower I would probably be going for mounting the 120mm on the back of the case over the psu-fan, removing the psu-fan. As you previously posted gotta be careful.

And how long had it been running like this, well about two years now. I still got the case, but almost everything has been changed.

/GM