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34 ASUS ME-99 User’s Manual
Connectors
3. H/W SETUP
3. HARDWARE SETUP
13) IDE Activity LED (2-pin IDE)
This connector supplies power to the cabinet’s IDE activity LED. Read and
write activity by devices connected to the Primary and/or Secondary IDE con-
nectors will cause the LED to light up.
ME-99 IDE Activity LED
TIP: If the case-mounted LED does not
light, try reversing the 2-pin plug.
IDELED
010101
®
ME-99
14) Chassis, CPU , & Power Supply Fan Connectors (3-pin CHA_, CPU_, PWR_FAN)
These connectors support cooling fans of 500mA (6 Watts) or less. Orientate the
fans so that the heat sink fins allow airflow to go across the onboard heat sink(s)
instead of the expansion slots. Depending on the fan manufacturer, the wiring
and plug may be different. The red wire should be positive, while the black
should be ground. Connect the fan’s plug to the board taking into consideration
the polarity of the connector. NOTE: The “Rotation” signal is to be used only
by a specially designed fan with rotation signal.
WARNING! The CPU and/or motherboard will overheat if there is no airflow
across the CPU and onboard heatsinks. Damage may occur to the motherboard
and/or the CPU fan if these pins are incorrectly used. These are not jumpers,
do not place jumper caps over these pins.
ME-99 12-Volt Cooling Fan Power
Chassis Fan Power
GND
Rotation
+12V
Power Supply Fan
CPU Fan Power
GND
Rotation
+12V
GND
Rotation
+12V
010101
®
ME-99