Datasheet

Chapter 6: Advanced Chassis Setup

6-3

6-3 System Fans

Four 5-cm fans provide the cooling for the 1020P-T(R)/1020P-8(R). Each fan

unit is actually made up of two fans joined back-to-back, which rotate in opposite

directions. This counter-rotating action generates exceptional airﬂ ow and helps

dampen vibration levels. These fans can adjust their speed according to the heat

level sensed in the system, which results in more efﬁ cient and quieter fan opera-

tion. Fan speed is controlled by a setting in BIOS (see Chapter 7). Each fan in a

set has its own separate tachometer.

It is very important that the chassis top cover is properly installed for the airﬂ ow to

circulate properly through the chassis and cool the components.

System Fan Failure

If a fan fails, the remaining fans will ramp up to full speed and the overheat/fan

fail LED on the control panel will turn on. Replace any failed fan at your earliest

convenience with the same type and model (the system can continue to run with

a failed fan). Remove the top chassis cover (see instructions on p. 2-8) while the

system is still running to determine which of the ﬁ ve fan units has failed. Then

power down the system before replacing a fan. Removing the power cord(s) is

also recommended as a safety precaution.

Replacing System Cooling Fans

1. Removing a fan

After turning off the power to the system, ﬁ rst remove the chassis cover (refer to

page 6-7) and unplug all the fan cables from the motherboard. Grasp the rectan-

gular housing that holds all the fan units and lift it out of the chassis (see Figure

6-2). Push the failed fan out through the bottom of the fan housing.

2. Installing a new fan

Replace the failed fan with an identical 5-cm, 12 volt fan (available from the manu-

facturer: p/n FAN-0085). Push the new fan into the vacant space in the housing

while making sure the arrows on the top of the fan (indicating air direction) point

in the same direction as the arrows on the other fans. Reposition the fan housing

back over the two mounting posts in the chassis, then reconnect the fan wires to

the same chassis fan headers you removed them from. Power up the system and

check that the fan is working properly and that the LED on the control panel has

turned off. Finish by replacing the chassis cover.