DFI CR100-CRM, User Manual

Page: 49 / 177

49
2
Hardware Installation
Power Connectors
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 pow-
er connector that must be inserted into the 24-pin connector.
The power connector from the power supply unit are designed to fi t the 24-pin
connector in only one orientation. Make sure to fi nd the proper orientation before
plugging the connectors.
The system board requires a minimum of 300 Watt power supply to operate. Your
system con
fi guration (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:
Insuf fi cient 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.
13
1
12
24
+3.3VDC
+3.3VDC COM
+5VDC
COM +5VDC
COM
PWR_OK +5VSB +12VDC
+12VDC
+3.3VDC
+3.3VDC
-12VDC
COM
PS_ON#
COM COM COM
NC
+5VDC +5VDC +5VDC
COM