Asus P5B User Manual

Page 55

ASUS P5B

• For a fully configured system, we recommend that you use a power supply

unit (PSU) that complies with ATX 12 V Specification 2.0 (or later version)

and provides a minimum power of 00 W.

• Do not forget to connect the -pin EATX2V 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.

• The ATX 12 V Specification 2.0‑compliant (400W) PSU has been tested

to support the motherboard power requirements with the following

configuration:

CPU: Intel

Pentium

Extreme .7GHz

Memory: 52 MB DDR2 (x)

Graphics card: ASUS EAX900XT

Parallel ATA device: IDE hard disk drive

Serial ATA device: SATA hard disk drive (x2)

Optical drive: DVD-RW

12. ATX power connectors (24-pin EATXPWR, 4-pin EATX12V)

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.

P5B

P5B ATX Power Connector

EATXPWR

EATX2V

+ Volts

Ground

+5 Volts

Ground

Power OK

+5V Standby

+2 Volts

-5 Volts

+5 Volts

+ Volts

-2 Volts

Ground

PSON#

Ground

+5 Volts

+2 Volts

+ Volts

+5 Volts

Ground

GND

+2V DC