Cooling Fan Connectors; Power Connectors - DFI DT122-SD User Manual

Cooling Fan Connectors

Ground 1
12V
PRM
CPU Fan
CTRL 4
1
System Fan 2
ystem Fan 1
S
FAN IN
12V
1 Ground
The fan connectors are used to connect cooling fans. The cooling fans will provide adequate
airflow throughout the chassis to prevent overheating the CPU and system board components.
BIOS Setting
The Advanced menu ("SIO NUVOTON6106D" submenu) of the BIOS will display the current
speed of the cooling fans. Refer to Chapter 7 - BIOS for more information.
Chapter 5 Ports and Connectors
Chapter 5

Power Connectors

+12V Power
Ground
Ground
Use a power supply that complies with the ATX12V Power Supply Design Guide Version 1.1.
An ATX12V power supply unit has a standard 24-pin ATX main power connector that must be
inserted into the 24-pin connector. The 4-pin +12V power connector enables the delivery of
more +12VDC current to the processor's Voltage Regulator Module (VRM).
The power connectors from the power supply unit are designed to fit the 24-pin and 4-pin
connectors in only one orientation. Make sure to find the proper orientation before plugging
the connectors.
26
ATX power
+3.3V
+12V
+12V
+5VSB
PWR_OK
GND
+5V
GND
+5V
GND
+3.3V
+3.3V
+12V
+12V
12 24
GND
+5V
+5V
+5V
NC
GND
GND
GND
PS_ON#
GND
-12V
+3.3V
1 13
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