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Chapter 2: Installation
2-11
Fan Headers
The CPU, thermal control and
chassis fan headers are desig-
nated CPU Fan1, CPU Fan2, Over-
heat Fan, Chassis Fan1, Chassis
Fan2 and Chassis Fan3, respec-
tively. See the table on the right
for pin definitions.
Fan Header
Pin Definitions
Pin
Number
1
2
3
Definition
Ground (black)
+12V (red)
Tachometer
Caution: These fan headers use
DC power
Chassis Intrusion
The Chassis Intrusion header is
located at JL1. See the board lay-
out in Chapter 1 for its location.
Refer to the table on the right for
pin definitions.
Pin
Number
1
2
Definition
Intrusion Input
Ground
Chassis Intrusion
Pin Definitions (JL1)