Asus P4P8X: 1.12 Connectors

3. IDE connectors (40-1 pin PRI_IDE1, SEC_IDE1)

This connector supports the provided UltraDMA100/66 IDE ribbon cable. Connect

the cable’s blue connector to the primary (recommended) or secondary IDE

connector, then connect the gray connector to the UltraDMA100/66 slave device

(hard disk drive) and the black connector to the UltraDMA100/66 master device. It

is recommended that you connect non-UltraDMA100/66 devices to the secondary

IDE connector. If you install two hard disks, you must configure the second drive

as a slave device by setting its jumper accordingly. Refer to the hard disk

documentation for the jumper settings. BIOS supports specific device bootup. If

you have more than two UltraDMA100/66/33 devices, purchase another

UltraDMA100/66/33 cable. You may configure two hard disks to be both master

devices with two ribbon cables – one for the primary IDE connector and another

for the secondary IDE connector.

P4P8X

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Chapter 1: Product introduction

NOTE: Orient the red marking

P4P8X IDE Connectors

Refer to the Parallel ATA and Serial ATA device configurations on the next page.

1. Pin 20 on each IDE connector is removed to match the covered hole on the

UltraDMA cable connector. This prevents incorrect orientation when you

connect the cables.

2. The hole near the blue connector on the UltraDMA100/66 cable is intentional.

3. For UltraDMA100/66 IDE devices, use the 80-conductor IDE cable.

(usually zigzag) on the IDE

ribbon cable to PIN 1.

PRI_IDE1

SEC_IDE1

PIN 1

Important note when using legacy OS

Refer to page 1-22 on how to configure P-ATA and S-ATA devices if you

installed a legacy operating system (e.g. MS-DOS, Windows 98/Me/NT4.0).

4. Serial ATA connectors (7-pin SATA1, SATA2)

These next generation connectors support the thin Serial ATA cables for Serial ATA

hard disks. The current Serial ATA interface allows up to 150 MB/s data transfer

rate, faster than the standard parallel ATA with 133 MB/s (Ultra ATA/133).

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ASUS P4P8X motherboard user guide

1-23

SATA1

GND

GND

GND

RSATA_TXP1

RSATA_TXN1

RSATA_RXP1

RSATA_RXN1

SATA2

GND

GND

GND

P4P8X SATA Connectors

RSATA_TXP2

RSATA_TXN2

RSATA_RXP2

RSATA_RXN2

Important notes on Serial ATA solution:

• In legacy operating system (Win98, WinME, WinNT, DOS) environment,

using SATA will disable one of the IDE channels from ICH5 south bridge

chipset. See BIOS section for correct settings.

• Hot plug support for Serial ATA drive and connections are not available in

this motherboard.

Parallel ATA and Serial ATA device configurations

Following are the Parallel ATA and Serial ATA device configurations supported by

Intel ICH5 specifications.

Native operating systems (OS) are Windows 2000/XP. ICH5 supports a maximum

of six (6) devices using these OS.

Legacy OS are MS-DOS, Windows 98/Me/NT4.0. ICH5 supports a maximum of

four (4) devices using these OS.

P-ATA S-ATA

Operating System Primary Secondary Port 0 Port 1

(2 devices) (2 devices) (1 device) (1 device)

1. Windows 2000/XP

2. Windows 98/Me/NT4.0

Configuration A —

Configuration B —

Configuration C ——

Legend:

Supported

— Disabled

Required IDE Configuration settings in BIOS

Refer to the following table for the appropriate BIOS settings of the above P-ATA

and S-ATA device configurations. See section “2.3.6 IDE Configuration” for details

on the related BIOS items.

Windows Windows 98/Me/NT4.0

BIOS item 2000/XP A B C

Onboard IDE Operate Mode Enhanced Mode Compatible Mode Compatible Mode Compatible Mode

Enhanced Mode Support On S-ATA — — —

IDE Port Settings — Primary P-ATA+S-ATA Sec. P-ATA+S-ATA P-ATA Ports Only

5. ATX power connectors (20-pin ATXPWR1, 4-pin ATX12V1)

These connectors connect to an ATX 12V power supply. The plugs from the

power supply are designed to fit these connectors in only one orientation. Find

the proper orientation and push down firmly until the connectors completely fit.

In addition to the 20-pin ATXPWR1 connector, this motherboard requires that

you connect the 4-pin ATX +12V power plug to provide sufficient power to the

CPU.

• Do not forget to connect the 4-pin ATX +12V power plug. Otherwise, the

system will not boot up.

• Make sure that your ATX 12V power supply can provide 8A on the +12V

lead and at least 1A on the +5-volt standby lead (+5VSB). The minimum

recommended wattage is 230W, or 300W for a fully configured system. The

system may become unstable and may experience difficulty powering up if

the power supply is inadequate.

P4P8X

1-24

Chapter 1: Product introduction

®

• When using Serial ATA function, make sure that the Windows

XP™

Service Pack 1 is installed.

• When using Serial ATA hard disks in a legacy operating system

(Windows 98, 98SE, ME, NT, DOS) make sure to adjust the appropriate

BIOS settings. Refer to section “2.3.6 IDE Configuration” in page 2-12 for

more detailed setting information.

ATXPWR1 ATX12V1

+3.3VDC

+3.3VDC

+12V DC GND

-12.0VDC

+3.3VDC

COM

COM

PS_ON#

+5.0VDC

COM

COM

COM

+5.0VDC

+12V DC GND

COM

COM

-5.0VDC

PWR_OK

+5.0VDC

+5VSB

+5.0VDC

+12.0VDC

P4P8X ATX Power Connector

6. SMBus connector (6-1 pin SMB1)

This connector allows you to connect SMBus (System Management Bus)

devices. Devices communicate with an SMBus host and/or other SMBus

devices using the SMBus interface.

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ASUS P4P8X motherboard user guide

1-25

SMB1

1

+3V

Ground

SMBCLK

P4P8X SMBus Connector

FLOATING

SMBDATA

7. CPU and chassis fan connectors (3-pin CPU_FAN1, CHA_FAN1,

PWR_FAN1)

The fan connectors support cooling fans of 350mA~740mA (8.88W max.) or a

total of 1A~2.22A (26.64W max.) at +12V. Connect the fan cables to the fan

connectors on the motherboard, making sure that the black wire of each cable

matches the ground pin of the connector.

Do not forget to connect the fan cables to the fan connectors. Lack of sufficient

air flow within the system may damage the motherboard components. These

are not jumpers! DO NOT place jumper caps on the fan connectors!

P4P8X

GND

Rotatio

CPU_FAN1

CHA_FAN1

P4P8X 12-Volt Fan Connectors

+12V

GND

+12V

Rotation

GND

+12V

Rotation

PWR_FAN1

8. Front panel audio connector (10-1 pin FP_AUDIO)

This is an interface for the Intel front panel audio cable that allow convenient

connection and control of audio devices.

By default, the pins labeled LINE OUT_R/BLINE_OUT_R and the pins LINE

OUT_L/BLINE_OUT_L are shorted with jumper caps. Remove the caps only

when you are connecting the front panel audio cable.

9. Chassis intrusion connector (4-1 pin CHASSIS1)

This lead is for a chassis designed with intrusion detection feature. This

requires an external detection mechanism such as a chassis intrusion sensor

or microswitch. When you remove any chassis component, the sensor triggers

and sends a high-level signal to this lead to record a chassis intrusion event.

By default, the pins labeled “Chassis Signal” and “Ground” are shorted

with a jumper cap. If you wish to use the chassis intrusion detection

feature, remove the jumper cap from the pins.

P4P8X

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Chapter 1: Product introduction

CHASSIS

P4P8X Chassis Alarm Lead

+5VSB_MB

Chassis Signal

GND

(Default

P4P8X

AGND

+5VA

BLINE_OUT_R

BLINE_OUT_L

FP_AUDIO

NC

MIC2

MICPWR

Line out_R

Line out_L

P4P8X Front Panel Audio Connector

10. GAME/MIDI connector (16-1 pin GAME1)

This connector supports an optional GAME/MIDI module. Connect the GAME/

MIDI cable to this connector. The GAME/MIDI port on the module connects a

joystick or a game pad for playing games, and MIDI devices for playing or

editing audio files.

The USB 2.0/GAME module is purchased separately.

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1-27

+5V

J1B2

J1CY

GND

GND

J1CX

J1B1

+5V

GAME1

P4P8X Game Connector

+5V

J2B2

J2CY

J2CX

J2B1

MIDI_IN

MIDI_OUT

11. Internal audio connectors (4-pin CD1, AUX1, MODEM)

These connectors allow you to receive stereo audio input from sound sources

such as a CD-ROM, TV tuner, or MPEG card. The MODEM connector allows

the onboard audio to interface with a voice modem card with a similar

connector. It also allows the sharing of mono_in (such as a phone) and a

mono_out (such as a speaker) between the audio and a voice modem card.

P4P8X

Right Audio Channe

CD1(Black) AUX1(White)

P4P8X Internal Audio Connectors

MODEM

Modem-Out

Ground

Ground

Ground

Ground

Modem-In

Left Audio Channel

12. USB header (10-1 pin USB56, USB78)

If the USB ports on the rear panel are inadequate, two USB headers are

available for additional USB ports. The USB header complies with USB 2.0

specification that supports up to 480 Mbps connection speed. This speed

advantage over the conventional 12 Mbps on USB 1.1 allows faster Internet

connection, interactive gaming, and simultaneous running of high-speed

peripherals.

Connect an optional USB 2.0/GAME module to this header. The module has

two USB 2.0 ports that support the next generation USB peripherals such as

high resolution cameras, scanners, and printers.

You must install the driver before you can use the USB 2.0 capability.

P4P8X

The USB 2.0/GAME module is purchased separately.

1-28

Chapter 1: Product introduction

USB+5V

USB_P6-

USB_P6+

GND

NC

USB+5V

USB_P8-

USB_P8+

GND

NC

USB56

USB78

1

1

P4P8X USB 2.0 Header

GND

GND

USB+5V

USB_P5-

USB+5V

USB_P5+

USB_P7-

USB_P7+

13. WiFi connector (63-pin WIFI)

This slot supports the ASUS proprietary WiFi (Wireless Fidelity) module.

P4P8X

WIF

P4P8X Wi-Fi Slot

14. System panel connector (20-pin PANEL1)

This connector accommodates several system front panel functions.

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ASUS P4P8X motherboard user guide

1-29

*

Requires an ATX power supply

P4P8X System Panel Connectors

Speaker

Connector

Power LED

PLED+

PLED-

+5V

Ground

Ground

Speaker

PWR

Reset

ExtSMI#

Ground

Ground

Ground

IDE_LED+

IDE_LED-

Reset SW

IDE_LED

ATX Power

SMI Lead

Switch*

• System Power LED Lead (3-1 pin PLED)

This 3-1 pin connector connects to the system power LED. The LED lights up

when you turn on the system power, and blinks when the system is in sleep

mode.

• Hard disk activity LED (2-pin IDELED)

This 2-pin connector supplies power to the hard disk activity LED. The read

and write activities of any device connected to the primary or secondary IDE

connector cause this LED to light up.

• System Warning Speaker Lead (4-pin SPEAKER)

This 4-pin connector connects to the case-mounted speaker and allows you to

hear system beeps and warnings.

• System Management Interrupt Lead (2-pin SMI)

This 2-pin connector allows you to manually place the system into a suspend

mode, or “green” mode, where system activity is instantly decreased to save

power and to expand the life of certain system components. Attach the case-

mounted suspend switch to this 2-pin connector.

• ATX Power Switch / Soft-Off Switch Lead (2-pin PWR)

This connector connects a switch that controls the system power. Pressing the

power switch turns the system between ON and SLEEP, or ON and SOFT

OFF, depending on the BIOS or OS settings. Pressing the power switch while

in the ON mode for more than 4 seconds turns the system OFF.

• Reset Switch Lead (2-pin RESET)

This 2-pin connector connects to the case-mounted reset switch for rebooting

the system without turning off the system power.

1-30

Chapter 1: Product introduction

Chapter 2

This chapter tells how to change system settings

through the BIOS Setup menus. Detailed

descriptions of the BIOS parameters are also

provided.

BIOS information