24
85ERV2 / 85ERV2-L
DIMM 3
DIMM 1
DIMM 2
PCI 1
PCI 2
PCI 3
PCI 4
PCI 5
PCI 6
FLASH BIOS
Li
Battery
Peripheral Power
Connector
+12 P
ower
Connector
4
1
Main P
ower
Connector
VIA
P4x400A
VIA
VT8235
1
mPGA478B
IDE2
IDE1
FDC1
1 3
F
AN2
F
AN1
1
FAN3
1
1
F
AN4
IT8705F
LPC I/O
LPT1
COM1
MIC
GAME/MIDI POR
T
LINE OUT
LINE IN
PS/2 K/B¤
(underside)
PS/2 Mouse
(on top)
USB1 (underside)
USB0 (middle)
Rj 45
(on top)
AC'97
Codec
JUSB2
1
10
JUSB1
1
10
SCR1
1
14
Audio 1
1
14
AGP 4X/8X
WOL1
1
RT1
RT2
1
JP1
1
JBAT1
1
JP2
S
APK
RST
PLED
SLED
HDD/LED
IR
PWR
S
MI
++
--
+
-
1
30
VIA VT6103
PHY (LAN Controller)
CD1
1
3
2
COM2
Audio Codec
DDR 266/333/(400 is subject to v
alidation)
2-7 ATX V 2.03 Power Supply Installation
ATX V2.03 power supply is strongly recommended for mainboard run-
ning with 2GMHz or higher CPU.
To set up Power Supply on this series:
1. Connect the on-board Main Power Connector (20-pin) to the Main
Power Connector (20-pin) of an ATX Power Supply which can be
either of the latest version 2.03 or of earlier ATX format.
2. If you use an ATX Power Supply Version 2.03 or later, you can now
connect the on-board square-12V Connector to the square-
12V Connector of your ATX Power Supply. In this case, it is
not necessary for you to connect the on-board 4-pin Peripheral Power
Connector to your Power Supply.
3. If you use an ATX power Supply of an older version than V2.03, you
cannot find a square-12V Connector with your Power Supply;
you must then connect the on-board 4-pin Peripheral Power
Connector to the 4-pin Peripheral Power Connector of your Power
Supply.
+12V Power Connector
Peripheral
Power Connector
1
2
3
4
+12V
GND
GND
+12V
Pin 1
Pin 4
GND
GND
+5V
+12V
Main Power Connector
(20-pin)
-12V
5SB
PWR OK
GND
GND
GND
GND
GND
GND
+5V
+5V
-5V
+5V
+5V
+3.3V
+3.3V
+3.3V
PS ON#
Pin1
Pin11
-12V
GND