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 firmly until the connectors completely fit.

•For a fully configured 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.

ATXPWR1

24-PIN Power Connector

DSBV-D

DSBV-D ATX power connectors

oltsV+3

oltsV+3

Ground oltsV+5 Ground oltsV+5

Ground PowerOK

Standby+5V

oltsV+12

oltsV+12

oltsV+3

ATX12V1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8-PIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

GND

GND

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+3 Volts

-12 Volts

Ground PSON# Ground Ground

Ground -5 Volts

+5 Volts

+5 Volts

+5 Volts

Ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12V1

12V1

12V2

12V2

ATX12V2

4-PIN

GND GND

+12V DC +12V DC

2-38

Chapter 2: Hardware information