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ASUS A8N-SLI SE 2-25
7. ATX power connectors (24-pin EATXPWR1, 4-pin ATX12V1,
4-pin EZ_PLUG)
These connectors are for an ATX power supply plugs. The power
supply plugs are designed to fit these connectors in only one
orientation. Find the proper orientation and push down firmly until the
connectors completely fit.
•
Do not forget to connect the 4-pin ATX +12 V power plug;
otherwise, the system will not boot.
•
If your power connector is 20-pin when you use two graphics cards,
do not forget to connect the 4-pin ATX +12 V power plug to the
EZ Plug™; otherwise, the system will be unstable. See page 6-5 for
details.
• Use of a Power Supply Unit (PSU) with a higher power output
is recommended when configuring a system with more power-
consuming devices. The system may become unstable or may not
boot up if the power is inadequate.
• Make sure that your PSU can provide at least the minimum power
required by your system. See the table below for details.
Power supply requirements
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Components/Peripherals Heavy Normal Light
AMD
®
K8 939-pin CPU type Athlon 64 FX-55 Athlon 64 3800+ Athlon 64 3400+
PCIe™ x16 graphics cards 6800 Ultra x2 6800GT x2 6600GT x2
DDR DIMMs 4 2 2
HDD 4 2 2
Optical drive (DVD/CD-RW) 2 2 1
PCIe™ x 1 card 1 0 0
PCI cards 3 2 1
USB devices 6 4 3
Required +12V current > 25A > 20A > 17A
Required wattage >= 500W >= 400W >= 350W
A8N-SLI SE
®
A8N-SLI SE ATX Power Connectors
EATXPWR
ATX12V
+12V DC
GND
+12V DC
GND
+3 Volts
+3 Volts
Ground
+5 Volts
+5 Volts
Ground
Ground
Power OK
+5V Standby
+12 Volts
-5 Volts
+5 Volts
+3 Volts
-12 Volts
Ground
Ground
Ground
PSON#
Ground
+5 Volts
+12 Volts
+3 Volts
+5 Volts
Ground
EZ_PLUG
+5V
EZ_DET
GND
+12V