1-20
Chapter 1 Motherboard 4S648/4S648N
SiS
963L
W83
697
8100BL
RTL
SiS
648
mPGA478B
Socket 478
1.7.8 USB Pin Header: USB3
USB3
USB3 2x5 Pin Headers for support of external USB ports. Each
USB pin header requires a USB cable for expansion of two USB
ports. This optional USB cable is available from your motherboard
dealer or vendor.
Vcc5
USB5-
USB4+
GND
GND
Vcc5
USB4-
N C
USB5+
1
2
9
1 0
1
9
2
1 0