
1-14
Chapter 1: Motherboard Information
6.
USB headers (10-1 pin USB2)
The USB1 panel is connected to the USB2 connector in the UAEX
extension module on the front panel for two additional USB 2.0 ports.
P4BGL-ED
USB P4-
USB P4+
USB Power
GND
1
USB P3-
USB P3+
USB Power
GND
NC
2
9
10
P4BGL-ED USB Headers
USB1
5.
CPU and Chassis Fan Connectors
(3-pin CPU_FAN1, CHA_FAN1)
The two fan connectors support cooling fans of 350mA (4.2 Watts) or
a total of 1A (12W) at +12V. Orient the fans so that the heat sink fins
allow air flow to go across the onboard heat sinks instead of the
expansion slots. The fan wiring and plug may vary depending on the
fan manufacturer. Connect the fan cable to the connector matching
the black wire to the ground pin.
P4BGL-ED
P4BGL-ED 12-Volt Cooling Fan Power
CPU_FAN1
CHA_FAN1
GND
Rotation
+12V
GND
Rotation
+12V
Do not forget to connect the fan cables to the fan connectors. Lack of
sufficient air flow within the system may damage the motherboard
components. These are not jumpers! DO NOT place jumper caps on
the fan connectors!