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Power I2C
The JPI2C header is for power I
may be used to monitor the status of the pow-
er supply, fan and system temperature. See
the table on the right for pin defi nitions.
Overheat LED
Connect an LED to the JOH1 header to pro-
vide warning of chassis overheating. See the
table on the right for pin defi nitions.
Power LED/Speaker
On the JD1 header, pins 1~3 are used for
power LED indication, and pins 4-7 are for
the speaker. See the tables on the right for
pin defi nitions. If you wish to use the onboard
speaker, you should close pins 6~7 with a
jumper. Connect a cable to pins 4~7 of JD1
to use an external speaker.
ATX PS/2 Keyboard and PS/2 Mouse
Ports
The ATX PS/2 keyboard and PS/2 mouse are
located next to the Back Panel USB Ports
0~3 on the motherboard. See the table at
right for pin defi nitions.
Chapter 5: Advanced Serverboard Setup
2
C, which
Pin# Defi nition
1
2
3
4
Pin# Defi nition
1
2
PWR LED Connector
Pin Setting
Pin 1
Pin2
Pin3
Speaker Connector
Pin Setting
Pins 4~7
Pins 6~7
PS/2 Keyboard/Mouse Pin
PS2 Keyboard
Pin# Defi nition
1
KB Data
2
No
Connection
3
Ground
4
Mouse/KB
VCC (+5V)
5
KB Clock
6
No Connec-
tion
VCC: with 1.5A PTC (current limit)
5-23
Power I
2
C
Pin Defi nitions
(JPI2C)
Data
Ground
Clock
NC
Overheat LED
Pin Defi nitions
(JOH1)
3.3V
OH Active
Pin Defi nitions
Defi nition
Anode (+)
Cathode (-)
NA
Pin Defi nitions
Defi nition
External Speaker
Internal Speaker
Defi nitions
PS2 Mouse
Pin# Defi nition
1
Mouse Data
2
No
Connection
3
Ground
4
Mouse/KB
VCC (+5V)
5
Mouse Clock
6
No Connec-
tion
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