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Chapter 2: Hardware informationChapter 2: Hardware information
Chapter 2: Hardware informationChapter 2: Hardware information
Chapter 2: Hardware information
8.8.
8.8.
8.
ATX power connectors (24-pin EATXPWR1,ATX power connectors (24-pin EATXPWR1,
ATX power connectors (24-pin EATXPWR1,ATX power connectors (24-pin EATXPWR1,
ATX power connectors (24-pin EATXPWR1,
4-pin ATX12V1, 4-pin EZ_PLUG)4-pin ATX12V1, 4-pin EZ_PLUG)
4-pin ATX12V1, 4-pin EZ_PLUG)4-pin ATX12V1, 4-pin EZ_PLUG)
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.
•
When using 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-x for details.
• Use of a 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 power supply unit (PSU) can provide at least
the minimum power required by your system. See the table below
for details.
Power supply requirementsPower supply requirements
Power supply requirementsPower supply requirements
Power supply requirements
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Components/PeripheralsComponents/Peripherals
Components/PeripheralsComponents/Peripherals
Components/Peripherals
HeavyHeavy
HeavyHeavy
Heavy
NormalNormal
NormalNormal
Normal
LightLight
LightLight
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
IEEE 1394 devices 1 0 0
USB devices 6 4 3
Required +12V current
> 25A> 25A
> 25A> 25A
> 25A
> 20A> 20A
> 20A> 20A
> 20A
> 17A> 17A
> 17A> 17A
> 17A
Required wattage
>= 500W>= 500W
>= 500W>= 500W
>= 500W
>= 400W>= 400W
>= 400W>= 400W
>= 400W
>= 350W>= 350W
>= 350W>= 350W
>= 350W
A8N-SLI PREMIUM
®
A8N-SLI PREMIUM ATX power connectors
EATXPWRATX12V
+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