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Chapter 4: Motherboard information4-12
4. Hard disk activity LED connector (4-pin HDLED1)
This connector supplies power to the hard disk activity LED. The read or
write activities of any device connected to the SCSI connectors or the SATA
connectors cause this LED to light up.
5. USB connector (10-1 pin USB34)
This connector is for USB 2.0 ports. Connect the USB module cable to
this connector, then install the module to a slot opening at the back of the
system chassis. This USB connector complies with USB 2.0 specification that
supports up to 480 Mbps connection speed.
LAN2
®
P5MT Series SCSI/SATA card activity LED connector
HDLED1
1
ADD_IN_CARD_ACT#
NC
ADD_IN_CARD_ACT#
NC
LAN2
®
USB+5V
USB_P3-
USB_P3+
GND
NC
P5MT Series USB 2.0 connector
USB34
USB+5V
USB_P2-
USB_P2+
GND
The USB port module is purchased separately.