DFI CA331-NR - Manual (Page 54)

54
2
Hardware Installation
Power Connector
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 board’s 24-pin power connector.
The power connector from the power supply unit is designed to fit the 24-pin
connector in only one orientation. Make sure to find the proper orientation before
plugging the connector.
The system board requires a minimum of 300 Watt power supply to operate. Your
system configuration (CPU power, amount of memory, add-in cards, peripherals,
etc.) may exceed the minimum power requirement. To ensure that adequate
power is provided, we strongly recommend that you use a minimum of 400 Watt
(or greater) power supply.
Important:
Insufficient power supplied to the system may result in instability or
the add-in boards and peripherals not functioning properly. Calculating
the system’s approximate power usage is important to ensure that the
power supply meets the system’s consumption requirements.
12 24
1
COM
+5VDC
+5VDC
NC
COM
COM
COM
PS_ON#
COM
+3.3VDC
+3.3VDC
+12VDC
+12VDC
+5VSB
PWR-OK
COM
+5VDC
COM
+5VDC
COM
+3.3VDC
+3.3VDC -12VDC
+5VDC
13