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SY-P4VDA Quick Start Guide
10
Hardware
Installation
B. ATX Power Supply
This M/B can support ATX Power supply version 2.03 (with 12V power connector) and older ATX power
supply.
The ATX12V power supply includes a 20-pin ATX connector that complies with the ATX specification,
Version 2.03 for M/B specification, a new 4-pin receptacle/header combination--the +12V power
connector--has been defined. The presence of the +12V power connector indicates that a power supply is
ATX12V; the absence of the +12V power connector indicates that a supply is ATX. To allow for greater than
+3.3V current, the Aux power connector is recommended for ATX and ATX12V power supplies with
+3.3V current >18A.
If the user uses an old ATX power supply, please connect the main power connector and the peripherals
connector to the M/B.
If the user uses an ATX power supply version 2.03, please connect the main power connector and
12Vconnector to the M/B.
Wa rnin g: Follow these precautions to preserve your Motherboard from any remnant currents
when connecting to ATX power supply:
Turn off the power supply and unplug the power cord of the ATX power supply before
connecting to ATX PW connector.
The Motherboard requires a power supply with at least 250 Watts and a "power good" signal. Make sure the
ATX power supply can take at 1.5 A max current * load on the 5V Standby lead (5VSB) to meet the
standard ATX specification.
Note:
ATX 12V power supply is different from the normal ATX power supply.
If you use the Wake-On-LAN (WOL) function, make sure the ATX power supply can support at
least 720 mA on the 5V Standby lead (5VSB).
Standard
ATX Power Supply
P2
ATX 12V Power Supply
P1