User`s manual

Chapter 2: Installation
2-15
X7SB4
Universal Serial Bus (USB)
There are seven USB 2.0 (Universal
Serial Bus) ports/headers on the mother-
board. Two of them are Back Panel USB
ports-USB 0/1 (J15). FP USB 6 (J47) is
a front panel USB connector. Another
two USB Headers-USB 2/3 (J44) and
USB4/5 (J45) can provide front USB ac-
cess. See the tables on the right for pin
denitions.
Note: BP USB 7/8 are for OEM only.
Chassis Intrusion
A Chassis Intrusion header is located
at JL1 on the motherboard. Attach an
appropriate cable from the chassis to
inform you of a chassis intrusion when
the chassis is opened.
Chassis Intrusion
Pin Denitions (JL1)
Pin#Denition
1 Intrusion Input
2 Ground
A
B
C
A. Backpanel USB 0/1
B. Front Accessible USB 2/3
C. Front Accessible USB 4/5
D. Front Panel USB 6
E. Chassis Intrusion
Back Panel USB
(J15)
Pin#Denitions
1 +5V
2 PO-
3 PO+
4 Ground
5 N/A
E
D
Front Panel & Front Accessible USB
Pin Denitions (J44, J45, J47)
USB2, USB4, USB6
Pin#Denition
USB3, USB5
Pin#Denition
1 +5V 1 +5V
2 PO- 2 PO-
3 PO+ 3 PO+
4 Ground 4 Ground
5 No connec-
tion
5 Key