






 
 
Universal Serial Bus (USB)
There are seven USB 2.0 (Universal Serial Bus) ports/headers on the motherboard. Two of them are Back Panel USB ports (USB 
Back Panel USB
(J15)
Pin# Defi nitions
1+5V
2PO-
3PO+
4Ground
5 N/A
Front Panel & Front Accessible USB
Pin Defi nitions (J44, J45, J47)
| USB 2, USB 4, USB 6 | USB 3, USB 5 | 
| Pin # Defi nition | Pin # Defi nition | 
Chassis Intrusion
A Chassis Intrusion header is located at JL1 on the motherboard. Attach an
1+5V
2PO-
3PO+
4Ground
5No connec- tion
1+5V
2PO-
3PO+
4Ground
5 Key
appropriate cable from the chassis to inform you of a chassis intrusion when it is opened.
A
Chassis Intrusion
Pin Defi nitions (JL1)
Pin# Defi nition
1Intrusion Input
2 Ground
A.Backpanel USB 
B.Front Accessible USB 
C.Front Accessible USB 
D.Front Panel USB 6
E.Chassis Intrusion
 E
 E
C
 B
B




D