- 11 -
Before removing or installing any of these devices including CPU, DIMMs, Add-On
Cards, Cables, please make sure to unplug the onboard power connector.
This section outlines how to install and configure your mainboard. Refer to the following
mainboard layout to help you to identify various jumpers, connectors, slots, and ports.
Then follow these steps designed to guide you through a quick and correct installation of
your system.
3.1 Step-by-Step Installation
3 HARDWARE INSTALLATION
Accessories Of MS50/MS50N
UK
N
2
0L
-0
22
0127
9502
0
2C
F
K B _ M S
U S B
C O M 1
V GA PR T
A U D IO
1
1
1
1
1
1
1
IT8 712F -A
994 4-DXS
MA 4500
FA N 3
FA
N
1
FA N 2
1
1
1
1
1
1
CN4
CN7
CN5
JP19
J3
JP18
1
1
1
1
GL ED /PLED
HLED
+
+
-
+
-
+
-
-
EPMI
RST
SPEAKER
PWON
PLED
I D E 1
I D E 2
D I M M 2
D I M M 1
1
1
1
1
F DD
FD C
AT
X
P
W
R
CN6
JP16
JP
20
AT X 1 2 V
AT P W 4
U S B 3 & 4
A U X _ I N
TA D _ I O
C D _ IN
C O M 2
JP2
JP1
JP
3
JL P1
JP4
JP7
I R
Fr o n t A u d io
P C I 1
A G P 1
P C I 2
P C I 3
R
T
L81
00
B
180
34
T
3
00
9B
T
A
IW
A
N
4
MC
C
9 6 1
S I S '0 0
E L D 2 6 9 1
0 1 3 8 E A
5 E5
C
6 5 0
SIS '0 1
P L D 48 9 2
0 1 4 5 EA
5E5
Three PCI Slots
One AGP 4x Slot
SOCKET 478
FAN3
FAN2
USB & LAN (MS50N only)
Connectors
Extended USB 1.1 Headers -
JP4
Front-Panel Connector -
JP18
Parallel Connector
Serial Port
Connector (COM1)
VGA Port Connector
Front-Panel Audio Connector -
JP19
Onboard LAN enable/
disable -
JLP1
(MS50N only)
RTL8100B LAN Controller
(MS50N only)
Onboard Audio CODEC
Line-Out/Line-In/Mic-In/
Game/MIDI Connectors
Onboard Audio
Connectors -
CN4/CN7/
CN5
PS/2 Keyboard and
PS/2 Mouse Connectors
I/O
C
on
tro
ller
Two DIMM Slots
FAN1
A
TX
Powe
r C
onne
ct
or
-
CN
6
P4 ATX 12V Power Connector -
JP16
P3 ATX 12V Power
Connector -
JP20
IR
C
onne
ct
or
-
JP
7
BI
O
S
W
rit
e
Prot
ect
ion
-
JP
3
USB Powe-On Setting -
JP2
COM2 Connector -
J3
Clear CMOS -
JP1
Clock Generator
Programmable Flash EEPROM (FWH)
Si
S
961
C
hi
ps
et
Fl
oppy
C
on
ne
ct
or
Two
E-
ID
E
C
onne
ct
or
s
SiS 650 Chipset
