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Power LED/Speaker
On the JD1 header, pins 1-3 are for
a power LED and pins 4-7 are for an
external speaker. See the table on the
right for speaker pin defi nitions.
Note: The speaker connector pins are
for use with an external speaker. If you
wish to use the onboard speaker, you
should close pins 6-7 with a jumper.
ATX PS/2 Keyboard and PS/2
Mouse Ports
The ATX PS/2 keyboard and the PS/2
mouse ports are located beside the
USB ports. See the table on the right
for pin defi nitions.
Overheat LED
Connect an LED to the JOH1 header to
provide warning of a chassis overheat-
ing condition. See the table on the right
for pin defi nitions.
SGPIO
The two headers labeled T-SGPIO-1
and T-SGPIO-2 are for SGPIO (Se-
rial General Purpose Input/Output).
SGPIO supports serial link interfaces
for onboard SATA and SAS ports. Con-
nect the appropriate cables from the
backplane to the SGPIO1 and SGPIO2
headers to utilize SATA/SAS manage-
ment functions on your system.
Chapter 5: Advanced Serverboard Setup
Speaker Connector
Pin Defi nitions
Pin # Function
4
+
5
Key
6
7
PS/2 Keyboard and
Mouse Ports
Pin Defi nitions
Pin#
Defi nition
1
Data
2
NC
3
Ground
4
VCC
5
Clock
6
NC
Overheat LED
Pin Defi nitions
Pin#
Defi nition
1
+5V
2
OH Active
SGPIO Pin Defi nitions
Pin#
Defi nition
1
NC
3
Ground
5
Load
7
NC
Note: NC indicates no connection.
5-19
Defi nition
Speaker data (red wire)
No connection
Key
Speaker data
Pin #
Defi nition
2
NC
4
Data
6
Ground
8
NC
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