Asus Pentium 4 1U Rackmount Server AP160R-S - Manual (Page 34)

34 Chapter 3: Powering Up
3.1 Cooling System
There are eleven (11) 40 x 40 x 28mm fans in the chassis to maintain the
optimal temperatures of the CPU, PCI cards, and power supply unit.
3.1.1 Fan locations
3.1.2 Fan connectors
The following figure shows the fan connector locations on the motherboard.
Some of the fan connectors are not accessible unless you remove some
system components. Refer to the previous sections for instructions on
removing system components.
One 40x40x28mm
PCI fan (underneath) Two fan modules
(each module has four
40x40x28mm fans) One 40x40x28mm
system fan for
power supply
One 40x40x28mm
rear panel fan
Two internal power
supply fans
SYSFAN1
SYSFAN2
FAN3
FAN2 FAN4