Front Cooling Fans - Asus AR1000 Hardware Reference Manual

II. System Components
• 2-8. Front Cooling Fans
The front cooling fan module consists of a control board, a hard disk drive
LED status board, and two cooling fans. The message LED board mounted
in the front of the cooling fan module consists of five sets of LEDs to repre-
sent the status of up to five hard disk drives. Each set has three LEDs which
can show the power, activity, and status of each hard disk drive.
The front cooling fans' main purpose is to cool the hard disk drives. There
are two individual 2 1/4 inch (6 cm) fans secured by four screws on each
fan. These fans can be removed by using a small screwdriver to push the
eject mechanism in the fan module. (See page 21.)
Lower Fan
IMPORTANT
Usually, the rotation of the fan sends air toward the
manufacturer's label on the center of the fan. If replacing the
fans, be sure that the fans are orientated as shown.
22 AR1000 RAID Subsystem Hardware Reference Guide
Front Cooling Fan Control Board
(mounted with the component side
facedown)
ß‚§‚
Hard Disk Drive Message Board (LEDs)
Upper Fan