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Hardware Installation
15
2.1 Mainboard Layout
Chapter 2 - Hardware Installation
PM12-EC
KB
Mouse
J11
USB 1
USB 2
CN1
COM 1 (J3)
Parallel (J9)
VGA
(VGA1)
COM 2 (J4)
2
1
9
+12V power
(ATXP1)
1
2
3
4
PS/2 power select
(JP2)
Socket 478
AUX-in (J18)
CD-in (J19)
2
1
9
10
Front
audio (J21)
I/O
chip
IrDA (J8)
PCI Standby Power LED
AC’97
BIOS
Game/MIDI
Line
out
Line
in
Mic
in
AGP Slot
PCI Slot 1
PCI Slot 2
PCI Slot 3
VIA
P4M266
VIA
VT8235CD
Wake-On-
LAN (J5)
Wake-On-Ring (J7)
FDD (J6)
USB 3/4 (J13)
1
5
11
15
RESET
SPEAKER
HD-LED
PWR-LED
G-SW
ATX-SW
G-LED
J10
Battery
Clear CMOS
(JP1)
Chassis fan
(J14)
IDE 1
(J1)
IDE 2
(J2)
DIMM Standby
Power LED
DDR 1
DDR 2
1
10
11
20
ATX power
(J17)
CPU fan (J15)
Square denotes pin 1