45
2
Hardware Installation
Pin
3
5
14
16
8
10
18
20
7
9
13
15
17
19
2
4
6
HD-LED
(Primary/Secondary IDE LED)
Reserved
ATX-SW
(ATX power switch)
Reserved
RESET
(Reset switch)
SPEAKER
(Speaker connector)
PWR-LED
(Power/Standby LED)
Pin Assignment
HDD LED Power
HDD
N. C.
N. C.
PWRBT+
PWRBT-
N. C.
N. C.
Ground
H/W Reset
Speaker Data
N. C.
Ground
Speaker Power
LED Power (+)
LED Power (+)
LED Power (-) or Standby Signal
PWR-LED: Power/Standby LED
When the system’s power is on, this LED will light. When the
system is in the S1 (POS - Power On Suspend) or S3 (STR -
Suspend To RAM) state, it will blink every second.
Note:
If a system did not boot-up and the Power/Standby LED did
not light after it was powered-on, it may indicate that the CPU
or memory module was not installed properly. Please make sure
they are properly inserted into their corresponding socket.
