3.HARDWARE SETUP

19)Power Supply Connectors (20-pin block ATXPWR) (4-pin ATX12V) These connectors supply ATX 12V power. Each power supply plug inserts in one orientation only. Push down firmly and make sure the pins are aligned.

IMPORTANT: Make sure that your ATX 12V power supply (minimum recom-

mended wattage: 230 watts; 300W for a fully-configured system) can supply at least 20 amperes on the +5-volt lead and at least 720mA on the +5-volt standby lead (+5VSB). Your system may become unstable/unreliable and may experience difficulty in powering up if your power supply is inadequate. For Wake- On-LAN support, your ATX power supply (minimum recommended wattage: 230watts) must supply at least 720mA +5VSB.

ATX12V

COM +12V DC

Pin 1

ATXPWR

Pin 1

+12.0VDC +5.0VDC

+5VSB +5.0VDC

 

 

PWR_OK

 

 

 

-5.0VDC

 

 

 

P4T-CM

 

 

 

 

 

 

 

 

 

 

COM +12V DC

SETUP

P4T-CM ATX &

COM COM

+5.0VDC COM

COM COM

+5.0VDC PS_ON#

COM COM

+3.3VDC -12.0VDC

+3.3VDC +3.3VDC

3 H/W.

Connectors

Auxiliary Power Connectors

20)IDE Activity LED (2-pin HDLED)

This connector supplies power to the cabinet’s IDE activity LED. Read and write activity by devices connected to the Primary/Secondary IDE and Primary/ Secondary ATA100 connectors will cause the LED to light up.

TIP: If the case-mounted LED does not light, try reversing the 2-pin plug.

P4T-CM

HDLED

P4T-CM HD Activity LED

ASUS P4T-CM User’s Manual

33