
2
42
Hardware Installation
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
SB-LED
(ATX 5VSB Standby LED)
HD-LED
(Primary/Secondary IDE LED)
G-LED
(Green LED)
ATX-SW
(ATX power switch)
G-SW
(Green switch)
RESET
(Reset switch)
SPEAKER
(Speaker connector)
PWR-LED
(Power/Standby LED)
Pin Assignment
ATX Power
Ground
N. C.
HDD LED Power
HDD
N. C.
Green LED Power
Green
N. C.
PWRBT
Ground
N. C.
SMI
Ground
N. C.
H/W Reset
Ground
N. C.
Speaker Data
N. C.
Ground
Speaker Power
N. C.
LED Power (+)
N. C.
LED Power (-) or Standby Signal
N. C.
Ground
Use pins 24-26 for the Power/
Standby LED.
PWR-LED: Power/Standby LED
Use pins 24 to 26 to connect to the Power/Standby LED. When the
systems power is on, this LED will light. When the system is in the
S1 (POS - Power On Suspend) state, it will blink every second.
When the system is in the S3 (STR - Suspend To RAM) state, it will
blink every 4 seconds.
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.