The 845E-ANT MAINBOARD
Page 16
2.4.4. ATX Power Supply Connectors
Connector: CN15-A/CN15-B/CN15-D
Type: 2x10/2x2/1x4
The mainboard comes with three onboard
power supply connectors labeled CN15-A,
CN15-B and CN15-D. CN15-A and CN15-
B are regular ATX power supply connec-
tors. The auxiliary power supply connec-
tor (CN15-D) is for a +12V and +5V
power supply. These increased power
supplies are necessary to provide extra
power for the slot. The ATX 12V power
supplies are all downward compatible
with standard ATX power supplies.
Plug
in CN15-D as long as you find out your
power supply without ATX12 (CN15-B)
connection. Otherwise it is no neces-
sary to use CN15-D (AUX12V).
2.4.3. CPU Fan, Power Supply Fan and Chassis Fan Connectors
Connector: CN13 (FAN1)/CN17 (FAN2)/CN27 (FAN3)
Type: 3 pin
The cooling fans must be connected to their respective power connectors. If
you have installed the hardware-monitoring feature you will be able to monitor
the rotating speed of the CPU cooling fan in your Windows operating system.
Hardware Installation
Fan Signal
+12V DC
Ground
1 Ground
2 +12V DC
3 Fan Signal
Top View of a Fan Connector
Front View of a Fan Connector
Pin 1 Pin 11
+3.3VDC
+3.3VDC
COM
+5VDC
COM
+5VDC
COM
PWR_OK
+5VSB
+12VDC
+3.3VDC
-12VDC
COM
PS_ON#
COM
COM
COM
-5VDC
+5VDC
+5VDC
ATX Power Supply Connector
Pin 1 Pin 3
COM
COM
+12VDC
+12VDC
ATX12V Power Supply Connector
Auxiliary Power Supply Connector
Pin 4
Pin 3
Pin 2
Pin 1
+5VDC
COM
COM
+12VDC
