11
Hardware Installation
24-pin ATX Power Connector-PW1
PW1
is the main power supply connector. Make sure that the power supply cable and pins are
properly aligned with the connector on the motherboard. Firmly plug the power supply cable into
the connector and make sure it is secure.
PW1-Pin Definition
Pin
Signal
Pin Signal
1
+3.3V
13 +3.3V
2
+3.3V
14
-12V
3
GND
15 GND
4
+5V
16 PS_ON
5
GND
17 GND
6
+5V
18 GND
7
GND
19 GND
8
PWROK 20
-5V
9 +5V_AUX 21
+5V
10
+12V
22
+5V
11
+12V
23
+5V
12
+3.3V
24 GND
4-pin ATX_12V Power
Connector-PWR2
PWR2
, the 4-pin ATX 12V power
connector, is used to provide
power to the CPU. Align the pins
to the connector and press firmly
until seated.
PWR2-Pin Definition
Pin
Signal
1
GND
2
GND
3
+12V
4
+12V
LPT Header-CN9
1 STROBE
2 ALF*
3 PD0
4 ERR*
5 PD1
6 INIT*
7 PD2
8 SCLTIN*
9 PD3
10 GND
11 PD4
12 GND
13 PD5
14 GND
15 PD6
16 GND
17 PD7
18 GND
19 ACK*
20 GND
21 BUSY
22 GND
23 PE
24 GND
25 SLCT
26 NC
LPT
- Pin Definition
+
120
240
121
120
240
121
1.5V
1.5V
1
PWR2
PW1
1
12
13
24
CN9
1
