Athlon xp 2000+

at least one fan blowing air in at the bottom/front and one fan sucking
air
out at the top/rear. You can see if case ventilation is a problem by
running
with the side off, if this drops your temp you need better ventilation

and what if the temp is rising? i mean when i remove side panel, system temp
is rising :-) when panels are on temp drops.
diffirence is beetwen 34C (panel on) and 39C (panel off)
(this was very hot day when i checked this)

i have only one rear fan blowing out :-)

Tomek