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4-14 Chapter 4: Motherboard information
9. SSI power connectors (24-pin ATXPWR1, 8-pin ATX12V1, 4-pin
ATX12V2)
These connectors are for SSI power supply plugs. The power supply
plugs are designed to fit these connectors in only one orientation.
Find the proper orientation and push down rmly until the connectors
completely t.
•
For a fully congured system, we recommend that you use an SSI
12 V-compliant power supply unit (PSU) for LGA771-socket Intel
®
Xeon Dual Core processors (Bensley platform).
•
Do not forget to connect the 24+8+4-pin power plugs; otherwise,
the system will not boot up.
•
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.
•
You must install a PSU with a higher power rating if you intend to
install additional devices.
DSBV-D
DSBV-D ATX power connectors
8-pin
GND
12V1
GND
12V1
GND
12V2
GND
12V2
24-pin Power Connector
ATXPWR1
ATX12V1
+12V DC
GND
+12V DC
GND
4-pin
ATX12V2
+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