User`s manual

VIA 693/693A Twin Processor Mainboard INTRODUCTION
1-2
1.2 MAINBOARD LAYOUT
CN15
Power Connector
CN12
IR Port
USB 1
USB 2
PS/2 Mouse
PS/2 K/B
1 2 3 4
1 2 3 4
PWR-LED
SPK
CN13
CPU Fan
JP8
Sound Enable/Disable
Short = Sou nd Enabled
Open = Sou nd Disabl ed
“G” = Ground
1
G G G G
1 1 1
RS
(Reset Button)
HL (HDD LED)
SL (Sleep LE D)
PW
(Power SW)
P
W
S
L
H
L
R
S
JP9 Clear CMOS
1. CMOS Data Clear
2. K/B Password Clear
SW ( optional)
Select CPU clock ratio.
CN17
Chas sis Fan
CN16 WOL
1. SPK Out
2. Line In
3. M ic. In
4. Game
CN22 CD-IN
CN21 CD-IN
D
I
M
M
3
S
L
O
T
1
C
P
U
A
G
P
S
L
O
T
B
I
O
S
Socket 370
CPU
C
N
1
0
I
D
E
2
C
N
9
I
D
E
1
D
I
M
M
2
D
I
M
M
1
BAT1
+
123
C
N
8
F
D
C
4
CN4 CN3
CN5
JP9
CN17
JP2
CN16 WOL
SW
JP11
JP100
5
5
Parallel Port
U1
W83783S
JP2: (o ptio nal)
Se nse Temp From
Open = Socket 370
Sh ort = Slot 1
JP12
COM 2 COM 1
IMPORTANT NOTICE:
1. There are two CPU sockets on the mainboard - the Slot 1 for
Pentium II/!!! and slot type Celeron Processor. The Socket 370 is
designed for socket type Celeron Processor. However,You can
install only one CPU on this mainboard.
2. The standby voltage is always active even when system power is off.
Whenever you want to install or remove any component from the
mainboard, please make sure to remove the power cable from the PC
system. Otherwise, it may cause serious damage to the PC system.
3. If W83783S is installed on U1 as shown above, please make sure the
jumper setting on JP2 is correct so that the thermal resistor will
detect the CPU temperature properly. (Note: JP2 is optional, if there
is no JP2 on the board, then the mainboard will detect the CPU and
choose the thermal resistor automatically.)