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M7S-Hi System Board Manual
Chapter 2: Configuring the M7S-Hi
16
Connector
Function
Notes
J18
Serial Port (COM 2)
Can be disabled at the CMOS
configuration screen
J19
Serial Port (COM1)
Can be disabled at the CMOS
configuration screen
J25
Secondary IDE
J26
Power Connector
ATX standard
J27
Primary IDE
J28
Floppy Connector
U13-U16
PCI Bus Expansion Slots
U17-U19;
U21
DRAM (72-pin SIMM
sockets)
U50
Infrared Connector
6 - +5V DC; 8- Receive Data;
9 - Ground; 10 - Transmit Data;
7, 11 - NC
"
System Power On/Off
1 - Power; 2 - Ground
"
Reset
23 - Reset; 22 - Ground
"
Hard Disk LED
13 or 16 - Positive;15 - Negative
"
Power LED
20 - Power; 22 - Ground
"
Speaker
Note: When using the
onboard buzzer, close
pins 26 & 27
27 - Speaker; 24 - +5V DC
"
Green Power
(power management)
3 - Green; 4 - +5V
W3
Case Fan
W9
CPU Fan
Table 2-7B: Case & Peripheral Connections