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 Disabled
“G” = Ground
1
G G G G
1
1 1
RS
(Reset Button)
HL
(HDD LED)
SL
(
Sleep LED
)
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
Chassis Fan
CN16
WOL
1. SPK Ou t
2. Line In
3. Mic. In
4. Game
CN22
CD-IN
CN21
CD-IN
DIMM3
SLOT1 CPU
A
G
P
SL
O
T
BIOS
Socket 370
CPU
CN10 IDE 2
CN9 IDE 1
DIMM2
DIMM1
BAT 1
+
1
2
3
CN8 FDC
4
CN4 CN3
CN5
JP9
CN17
JP2
CN
16
W
O
L
SW
JP11
JP100
5
5
Parallel Port
U1
W83783 S
JP2
: (optional)
Sense Temp From
Open
= Socket 370
Short
= 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.)
