89
P10 Pinout
This connector allows the system board to monitor and control the fan speed for varying
ambient temperature and system load changes.
Pin
Signal
Wire Color
1
Return
Black
2
+12V
Red
3
Tach Output
White
4
Speed Control
Brown
Cooling Fans
The TDZ 2000 GT1 has three cooling fans. One is inside the power supply; the others are
mounted in the chassis. All fans are 12 VDC. The fans pressurize the chassis and force warm
air out from the vents. Hardware controls the dynamic speed of each four-wire fan.
See Chapter 5, “System Board,” for connector locations and fan cable pinouts. See also
Chapter 2, “Servicing the System,” for details on replacing the chassis fans.
The table below summarizes fan information.
Fan
Location
Size
Airflow
Devices Cooled
Chassis fan 1
Bottom front
120 mm
Front-to-back
Option cards
Chassis fan 2
Top rear
120 mm
Back-to-front
Processors, drives
CPWS152
Power supply
Power supply
92 mm
Back-to-front
Power supply
The two chassis fans (CFAN120) are field replaceable.
The power supply fan is not field replaceable. If the fan requires replacement, you must
replace the power supply.
Arrows on each fan indicate airflow direction and rotation, as in the following illustration.
