what size fans usually fit on the case? like in the front and back?

newbie69 · Post by **newbie69** » Tue Oct 02, 2001 9:46 pm

im planning to buy 2 powerful fans that fit in my case without any mods, just by leaving the case exactly how it is...what size fans usually fit in the case? any links or referrals of a case fan? 1 is going to take the hot air out, the other is going to take fresh air in...thanks in advance

A_old · Post by **A_old** » Tue Oct 02, 2001 9:58 pm

Brent · Post by **Brent** » Tue Oct 02, 2001 10:11 pm

80mm which is 10cm

newbie69 · Post by **newbie69** » Tue Oct 02, 2001 10:25 pm

so any kind of 80mm fans? because theres like 80x25mm and
80x38mm

RoundEye · Post by **RoundEye** » Tue Oct 02, 2001 10:29 pm

Originally posted by newbie69
so any kind of 80mm fans? because theres like 80x25mm and
80x38mm

80mm is from screw hole to screw hole.

25mm and 38mm is the height of the fan.

cybotron r_9 · Post by **cybotron r_9** » Tue Oct 02, 2001 10:37 pm

Originally posted by RoundEye

80mm is from screw hole to screw hole.

25mm and 38mm is the height of the fan.

I read somewhere that the 38mm height is better for airflow

"The thicker the fan, IE 80x32mm versus 80x25mm, the better they handle static pressure, up to a point."

link

what do u guys think?

A_old · Post by **A_old** » Tue Oct 02, 2001 10:41 pm

yea cause they're usually more powerful.

poptom · Post by **poptom** » Tue Oct 02, 2001 11:32 pm

First thing to do is measure the openings on your case. The front fan is usually 80mm diameter with mounting holes at 100mm diam. Rear exhaust is probably the same but could have one or more 60mm openings instead. The thicker fan is likely to be more efficient if you've got the space.