
11
Installing the Motherboard
CPUFAN1/CASFAN1/NBFAN1: FAN Power Connectors
1
GND
System Ground
2
+12V
Power +12V
3
Sense
Sensor
ACPI LED function
SJ1: Single-color LED header
ATX12V: ATX 12V Power Connector
ATX1: ATX 24-pin Power Connector
1
+3.3V
13
+3.3V
2
+3.3V
14
-12V
3
Ground
15
COM
4
+5V
16
PS_ON
5
Ground
17
COM
6
+5V
18
COM
7
Ground
19
COM
8
PWRGD
20
-5V
9
+5VSB
21
+5V
10
+12V
22
+5V
11
+12V
23
+5V
12
+3.3V
24
COM
4
+12V
3
+12V
2
Ground
1
Ground
Pin
Signal Name
1
ACPI LED
2
ACPI LED
3
5VSB
Light Blinking Blinking Dark
S0 S1 S3 S4/S5
Pin Signal Name Pin Signal Name
Pin Signal Name Pin
Pin Signal Name
Pin Signal Name
Summary of Contents for NFORCE4-A939
Page 1: ...iii...
Page 2: ...iv...
Page 10: ...4 IntroducingtheMotherboard Motherboard Components...
Page 12: ...6 IntroducingtheMotherboard Memo...
Page 48: ...42 Using BIOS Memo...