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85DR / 85DRB
2-9.11 USB Ports and USB Header (Header USB 1)
• This series of mainboards provides two USB ports USB0 and USB1 on
board supporting various USB devices. In addition, 1 USB header is
added on board to provide two additional USB ports by using one addi-
tional USB Cable. This additional USB cable is available from your main-
board dealer or vender.
• When plugging the USB cable into Header USB 3, user must make sure
the red wire is connected to Pin 1.
USB Ports USB 0 & 1
PS/2Mouse
(on top)
(underside)
PS/2 K/B
mPGA478B
USB0
(on top)
(underside)
USB1
SW1
On
RT2
ON
DIP
1
23 45
FAN 2
4
3
AGP 4X
2
1
+12V Power
PCI 1
PCI 2
（85DR)
PCI 3
AC'97
Audio
AC'97
Audio
PCI 4
（85DRB)
PCI 5
PCI 6
Jp9
1
CNR
2-9.12 PS/2 Mouse And PS/2 Keyboard
PIN 6 : Void
PIN 5 : Mouse Clock
PIN 4 : Vcc
PIN 3 : GND
PIN 2 : Void
PIN 1 : Mouse Data
PS/2 MOUSE
FAN 1
92
Jp2
1
Jp3
1
1
Jp4
1
1
i82845
Intel RG82845
Intel
1
JBAT1
1
Intel
82801BA
BIOS
1
Jp15
WOL1
MEM1
SCR1
FAN3
USB1 Header
HDD/LED
IR
SMI
- -
+
+
30
15
1
-
1
+
SPK S3/LED KEYLOCK
SUS/LED
USB Cable (Optional)
USB Port
Red wire
1
10
10
1
Header USB 1
PIN 6 : Void
PIN 5 : Keyboard Clock
PIN 4 : Vcc
PIN 3 : GND
PIN 2 : Void
PIN 1 : Keyboard Data
PS/2 KEYBOARD
38
USB1
USB
P4D -
GND
USB
P4D +
+5V
N/C
10
1
USB
+5V
Void
P2D +
USB
GND
P2D -
USB1 Header
Pin Assignment
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