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7.
ATX power connectors
(24-pin EATXPWR and 4-pin ATX12V)
These connectors are for 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.
•
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.
•
If you intent to use a PSU with 20-pin and 4-pin power plugs, make
sure that the 20-pin power plug can provide at least 15A on +12V
and that the PSU has a minimum power rating of 350 W. The
system may become unstable or may not boot up if the power is
inadequate.
•
The ATX 12 V Specification 2.0-compliant PSU passed the
motherboard power requirement test with the following
configuration:
CPU
Memory
Graphics card
Parallel ATA devices :
Serial ATA device
Optical drive
SCSI devices
•
You must install a PSU with a higher power rating if you intend to
install additional devices.
M2A-VM
R
ATX Power Connector
ASUS V-Series M2A690G
:
Intel
Pentium
®
®
:
512 MB DDR (x 4)
:
PCI Express x16 Nvidia EN5900
IDE hard disk drive (x 2)
:
SATA hard disk drive
:
CD-ROM (x2)
:
SCSI card and SCSI hard disk drive
ATX12V
GND
GND
+12V DC
+12V DC
4 3.6 GHz
EATXPWR
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
Ground
+5 Volts
Ground
+5 Volts
Ground
+3 Volts
+3 Volts
Ground
+5 Volts
+5 Volts
+5 Volts
-5 Volts
Ground
Ground
Ground
PSON#
Ground
-12 Volts
+3 Volts
4-9
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