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Iii. hardware setup, P5-99b at power connector, P8 p9 – Asus P5-99B User Manual

Page 35

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III. HARDWARE SETUP

ASUS P5-99B User’s Manual

35

9. ATX Power Supply Connector (ATXPWR, 20-pin block)

This connector connects to an ATX power supply. The plug from the power sup-
ply will only insert in one orientation because of the different hole sizes. Find the
proper orientation and push down firmly making sure that the pins are aligned.

IMPORTANT!

Make sure that your ATX power supply can supply at least

10mAmp on the 5-volt standby lead (+5VSB). You may experience difficulty in
powering on your system if your power supply cannot support the load. For
Wake on LAN support, your ATX power supply must supply at least 720mA.

P5-99B ATX Power Connector

+3.3Volts

-12.0Volts

Ground

Power Supply On

Ground

Ground

Ground

-5.0 Volts

+5.0 Volts

+5.0 Volts

Power Good

+12.0Volts

+3.3 Volts

+3.3 Volts

Ground

+5.0 Volts

Ground

+5.0 Volts

Ground

+5V Standby

0

1

10. AT Power Supply Connector (PS2PWR, 12-pin block)

This connector connects to a standard 5 Volt power supply. To connect the leads
from the power supply, ensure first that the power supply is not plugged. Most
power supplies provide two plugs (P8 and P9), each containing six wires, two of
which are black. Orient the connectors so that the black wires are together.

P5-99B AT Power Connector

0

1

Power Plugs from
Power Supply

Power Connector
on Motherboard

P8

P9

RED
RED
RED

WHT

BLK
BLK
BLK
BLK

BLU

YLW
RED

ORG

+5V

PG

+12V

GND

+5V

-12V

-5V

At a slight angle, align the plastic guide pins on the lead to their receptacles on
the connector. Once aligned, press the lead onto the connector until the lead
locks into place.

Connectors

III. H/W SETUP