Asus A55M-A/USB3 - Manual (Page 35)

7. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are for USB
2.0/1.1 devices.
8. USB 3.0 ports 11 and 12 (A55M-A/USB3 only). These two 4-pin Universal Serial Bus
(USB) ports are for connecting USB 3.0 devices.
USB 2.0 ports 11 and 12 (A55M-A only). These two 4-pin Universal Serial Bus (USB)
ports are for USB 2.0/1.1 devices.
9. DVI-D port. This port is for any DVI-D compatible device. DVI-D can’t be converted to
output RGB signal to CRT and isn’t compatible with DVI-I
10. HDMI port. This port is for a High-Definition Multimedia Interface (HDMI) connector,
and is HDCP compliant allowing playback of HD DVD, Blu-ray, and other protected
content.
11. PS/2 Keyboard port (purple). This port is for a PS/2 keyboard.
1.8.2 Internal connectors
1. CPU and chassis fan connectors (4-pin CPU_FAN, and 3-pin CHA_FAN)
Connect the fan cables to the fan connectors on the motherboard, ensuring that the
black wire of each cable matches the ground pin of the connector.
• The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power.
• Only the CPU_FAN connector support the ASUS Fan Xpert feature.
DO NOT forget to connect the fan cables to the fan connectors. Insufficient air flow inside
the system may damage the motherboard components. These are not jumpers! DO NOT
place jumper caps on the fan connectors.
CPU_FAN
CPU F
AN PWM
CPU F
AN IN
CPU F
AN PWR
GND
A55M-A/USB3
A55M-A/USB3 CPU fan connector
CHA_FAN
Rotation
+12V GND
ASUS A55M-A Series 1-23