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 MS21 mainboard. Please refer to
following mainboard layout to help you identifying 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
Accessories Of MS21
3 HARDWARE INSTALLATION
Dual USB Ports Header- USB2
2Mb Flash ROM
BIOS Write Protect- JP3
IR Header -SIR1
Dual USB Ports Header- USB3
PS2 Keyboard /
PS/2 Mouse Connectors
CPU Fan- CPUFAN1
USB1/USB2 Connectors
Socket 462
Serial Port
Connector (COM1)
VGA Connector
Parallel Connector
Line_out/Line_In/Microphone
MIDI/GAME Port Connectors
Audio_in Connector- CD_1
Audio_in Connector- CD_2
AMR 1 Slot
Clear CMOS Setting- JP1
SiS 730s Chip
AGP 2x/4x Slot
Extra MIC/Line-Out Header- J1
ATX Power Connector
AC97 Audio CODEC
Lan Header - J2
Two PCI Slots
CNR1 Slot
SiS 950 Super I/O
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Red 3VSB LED for SDRAM- LED1
Two DIMM Sockets
K B M P S 1
U SB 1
C OM 1
V G A P R IN T
A U D I O
J4
1
1
IDE1
1
IDE2
SO
C
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6
2
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CA S FA N 1
CP
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1
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S A A 0 2 1 3
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Si
S
R T L 8 1 3 9 C
0 2 1 7 5 T 1
0 0 9 B TA IW A N
R
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CNR 1
P CI1
P CI2
A GP 1
J2
1
J1
1
CD1
CD2
A M R1
JP 1
1
U
SB2
AT
X
1
S IR1
D
IMM1
D
IMM2
JP 3
1
W OM 1
W OL1
PWR
SW
SMI
RS T
HDD
LED
GRN
LED
SP
EA
K
E
R
KE Y
LOCK
PW
R
L
E
D
PA
N
E
L
1
US B 3
1
1
MS 21 V 1. 0
On Board Lan
RTL8139C
(Optional)
