ASUS TERMINATOR P4 User Guide

Chapter 3

This chapter gives information about the ASUS P4SC motherboard that came with the system.This chapter includes the motherboard layout, jumper settings, and connector locations. It also includes information on the USB/audio board located on the front panel.

IMPORTANT

The ASUS Terminator P4 barebone system is designed to support a motherboard that measures 23 cm (9.06 in) x 22.4 cm (8.82 in). It is not recommended to install any motherboard of other sizes. If you need to replace the original motherboard that came with the system, make sure that it fits into the chassis and that the I/O connectors correspond to the openings on the rear panel.

ASUS Terminator P4 Barebone System

Motherboard Info

3.1 Introduction

The ASUS P4SC motherboard comes already installed in the ASUS Terminator P4 barebone system. For future upgrades or system reconfiguration, this chapter provides technical information about the motherboard.

3.2 Motherboard components

21 3 64 5 7

1112 10

13 14

2022 21 1519 18 17 16

Chapter 3: Motherboard information

ATX 12V connector. This power connector connects the 4-pin 12V

plug from the ATX 12V power supply.

Super I/O chipset. This Low Pin Count (LPC) interface provides

the commonly used Super I/O functionality. The chipset supports a high-performance floppy disk controller for a 360K/720K/1.44M/

2.88M floppy disk drive, a multi-mode parallel port, two standard compatible UARTs, a Standard Infrared (SIR), one MPU-401 UART mode compatible MIDI/game port, and a Flash ROM interface.

Flash EEPROM. This 2Mb firmware contains the programmable

BIOS program.

CPU socket. A 478-pin surface mount, Zero Insertion Force (ZIF)

socket called mPGA478 B. This socket accommodates the Intel

Pentium® 4 478/Northwood Processor with 400MHz system bus.

DDR DIMM sockets. These two 184-pin DIMM sockets support up

to 2GB using unbuffered ECC or non-ECC PC2100/1600 DDR DIMMs.

Floppy disk connector. This connector connects the provided

ribbon cable for the floppy disk drive. One side of the connector is slotted to prevent incorrect insertion of the floppy disk cable.

ATX power connector. This 20-pin connector connects to an ATX

12V power supply. The power supply must have at least 1A on the +5V standby lead (+5VSB).

North bridge controller. This SiS645 controller integrates a high performance host interface for the Intel

Pentium® 4 processor, a

memory controller, an AGP interface, and SiS MuTIOL technology. IDE connectors. These dual-channel bus master IDE connectors

support up to four Ultra DMA/100/66, PIO Modes 3 & 4 IDE devices. Both the primary (blue) and secondary (black) connectors are slotted to prevent incorrect insertion of the IDE ribbon cable.

South bridge controller. Referred to as the SiS961 MuTIOL Media I/O, this controller integrates the audio controller with AC’97 Interface, Ethernet MAC, Dual Universal Serial Bus Host controllers, IDE Master/Slave controllers, and the MuTIOL Connect to PCI Bridge.

PCI slots. These two 32-bit PCI 2.2 expansion slots support bus master PCI cards like SCSI or LAN cards with 133MB/s maximum throughput.

ASUS Terminator P4 Barebone System

Audio/Modem CODEC. This audio CODEC is AC ’97 compliant.

13 14

18 19

PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse. Parallel port. This 25-pin port connects a parallel printer, a

scanner, or other devices. USB ports. These two 4-pin Universal Serial Bus (USB) ports are

available for connecting USB devices such as a mouse and PDA. LAN activity LEDs. These LEDs indicate an active network

connection. RJ-45 port. This port allows connection to a Local Area Network

(LAN) through a network hub.

Microphone jack. This Mic (pink) jack connects a microphone. Line In jack. This Line In (light blue) jack connects a tape player or

other audio sources. Line Out jack. This Line Out (lime) jack connects a headphone or

a speaker.

21 22

Video port. This port connects a VGA monitor. PS/2 keyboard port. This purple 6-pin connector is for a PS/2

keyboard.

Chapter 3: Motherboard information

3.3 Motherboard layout

23cm (9.06in)

PS/2

T:Mouse B:Keyboard

VGA1

Line

Out

Line

Mic

RJ-45

LANLED

USB

T:Port0

B:Port1

IOC_MB

PARALLEL PORT

USBV1

AUX1

MIC_LOUT1

Audio

Codec

CD1

ATX12V1

Super I/O

MODEM1

Flash

FLOPPY1

BIOS

CHASFAN1

DDR DIMM2 (64/72-bit, 184-pin module) DDR DIMM1 (64/72-bit, 184-pin module)

P4SC

Socket 478

Integration

PCI Slot 1

CR2032 3V

USBV2

Lithium Cell

CMOS Power

PCI Slot 2

SMARTC1

IR1

SiS650

Single

Chip

USB2

CPUFAN1

SiS

961

Chipset

SPDIF1

CLRTC1

BUZZER1

IDELED1

ATX Power Connector

IDE1

IDE2

SIRQ1

HPANEL1

22.4cm (8.82in)

ASUS Terminator P4 Barebone System

3.4 Central Processing Unit (CPU)

The motherboard comes with a surface mount 478-pin Zero Insertion Force (ZIF) socket. This socket is specifically designed for the Intel Pentium® 4 478/Northwood Processor.

The Intel Pentium 4 Processor in the 478-pin package uses the Flip-Chip Pin Grid Array 2 (FC-PGA2) package technology, and includes the Intel NetBurst™ micro-architecture. The Intel NetBurst micro-architecture features the hyper-pipelined technology, rapid execution engine, 400MHz system bus, and execution trace cache. Together, these attributes improve system performance by allowing higher processor frequencies, faster execution of integer instructions, and a data transfer rate of 3.2GB/s.

P4SC

Gold Arrow

P4SC Socket 478

NOTE

Refer to sections “2.3 Install a CPU” and “2.4 Install the CPU heatsink and fan” for instructions on installing the Intel Pentium 4 CPU and the heatsink/fan assembly.

Chapter 3: Motherboard information

3.5 System memory

The motherboard has two Double Data Rate (DDR) DIMM sockets that supports up to 2GB unbuffered non-ECC PC2100/1600 DDR DIMMs.

A DDR DIMM has the same physical dimensions as an SDR DIMM, but it has a 184-pin footprint compared to the 168-pin of the SDR DIMM. Also, a DDR DIMM is single notched while an SDR DIMM is double notched. Therefore, a DDR DIMM is not backward compatible with SDR, and should be installed only in a socket specially designed for DDR DIMMs.

P4SC

P4SC 184-Pin DDR DIMM Sockets

80 Pins104 Pins

3.5.1 Memory configurations

You may install any DDR DIMMs with 64MB, 128MB, 256MB, 512MB, and 1GB densities into the three DIMM sockets.

Use the following combinations to install DDR DIMMs.

DIMM Location 184-pin DDR DIMM Total Memory

Socket 1 (Rows 0&1) 64MB, 128MB, 256MB, 512MB, 1GB x1 = Socket 2 (Rows 2&3) 64MB, 128MB, 256MB, 512MB, 1GB x1 =

Total system memory (Max. 2GB) =

NOTE

Refer to section “2.5 Install system memory” for instructions on installing DDR DIMMs.

ASUS Terminator P4 Barebone System

3.6 Expansion slots

In the future, you may need to install expansion cards. The motherboard has two PCI slots.

3.6.1 Configuring an expansion card

After physically installing the expansion card, configure the card by adjusting the software settings.

1. Turn on the system and change the necessary BIOS settings, if any. See Chapter 4 for information on BIOS setup.

2. Assign an IRQ to the card. Refer to the tables below.

3. Install the software drivers for the expansion card.

3.6.2 Standard Interrupt Assignments

IRQ Priority Standard Function

0 1 System Timer 1 2 Keyboard Controller 2 N/A Programmable Interrupt 3* 11 Communications Port (COM2) 4* 12 Communications Port (COM1) 5* 13 Sound Card (sometimes LPT2) 6 14 Floppy Disk Controller 7* 15 Printer Port (LPT1) 8 3 System CMOS/Real Time Clock 9* 4 ACPI Mode when used 10* 5 IRQ Holder for PCI Steering 11* 6 IRQ Holder for PCI Steering 12* 7 PS/2 Compatible Mouse Port 13 8 Numeric Data Processor 14* 9 Primary IDE Channel 15* 10 Secondary IDE Channel

*These IRQs are usually available for ISA or PCI devices.

3.6.3 IRQ assignments for this motherboard

ABCDEFGH

PCI slot 1 — used —————— PCI slot 2 ——used ————— Onboard Audio —————used —— Onboard LAN ——————used —

Chapter 3: Motherboard information

3.7 Jumpers

This section describes and illustrates the jumpers on the motherboard.

1. USB device wake-up (3-pin USBV1, USBV2)

Set these jumpers to +5V to wake up the computer from S1 sleep mode (CPU stopped, DRAM refreshed, system running in low power mode) using the connected USB devices. Set to +5VSB to wake up from S3 sleep mode (no power to CPU, DRAM in slow refresh, power supply in reduced power mode).

The USBV1 jumper is for the rear USB ports. The USBV2 jumper is for the internal USB header that you can connect to the front USB ports.

NOTES

This feature requires a power supply that can provide at least 1A on the +5VSB lead when these jumpers are set to +5VSB. Otherwise, the system does not power up.

The total current consumed must NOT exceed the power supply capability (+5VSB) whether under normal condition or in sleep mode.

P4SC

USBV1

P4SC USB Device Wake Up

USBV2

1 22

+5VSB+5V

(Default)

ASUS Terminator P4 Barebone System

2. Clear RTC RAM (CLRTC)

These solder points allow you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The RAM data in CMOS, that include system setup information such as system passwords, is powered by the onboard button cell battery.

To erase the RTC RAM:

1. Turn OFF the computer and unplug the power cord.

2. Remove the battery.

3. Short the solder points.

4. Re-install the battery.

5. Plug the power cord and turn ON the computer.

6. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data.

P4SC

P4SC Clear RTC RAM

CR2032 3V

Lithium Cell

CMOS Power

CLRTC1

Short solder points to Clear CMOS

Chapter 3: Motherboard information

3.8 Connectors

This section describes and illustrates the connectors on the motherboard.

1. IDE connectors (40-1 pin IDE1, IDE2)

This connector supports the provided UltraDMA/100/66 IDE hard disk ribbon cable. Connect the cable’s blue connector to the primary (recommended) or secondary IDE connector, then connect the gray connector to the UltraDMA/100/66 slave device (hard disk drive) and the black connector to the UltraDMA/100/66 master device. It is recommended that you connect non-UltraDMA/100/66 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 UltraDMA/100/66 devices, purchase another UltraDMA/100/66 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.

NOTES

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.

For UltraDMA/100/66 IDE devices, use an 80-conductor IDE cable. The UltraDMA/66 cable included in the motherboard package also supports UltraDMA/100.

P4SC

NOTE: Orient the red markings

(usually zigzag) on the IDE ribbon cable to PIN 1.

Secondary IDE Connector

Primary IDE Connector

P4SC IDE Connectors

ASUS Terminator P4 Barebone System

PIN 1

2. Floppy disk drive connector (34-1 pin FLOPPY1)

This connector supports the provided floppy drive ribbon cable. After connecting one end to the motherboard, connect the other end to the floppy drive. (Pin 5 is removed to prevent incorrect insertion when using ribbon cables with pin 5 plug).

FLOPPY

P4SC

PIN 1

NOTE: Orient the red markings on

P4SC Floppy Disk Drive Connector

the floppy ribbon cable to PIN 1.

3. Hard disk activity LED (2-pin IDELED1)

This connector supplies power to the hard disk activity LED. The read or write activities of any device connected to the primary or secondary IDE connector cause this LED to light up.

P4SC

TIP: If the case-mounted LED does not

light, try reversing the 2-pin plug.

P4SC IDE Activity LED

IDELED1

Chapter 3: Motherboard information

4. ATX power connectors (20-pin ATXPWR, 4-pin ATX +12V)

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 ATXPWR connector, this motherboard requires that you connect the 4-pin ATX +12V power plug to provide sufficient power to the CPU.

+5.0 Volts +5.0 Volts

-5.0 Volts Ground Ground Ground Power Supply On Ground

-12.0Volts +3.3Volts

+12V DCCOM

P4SC

P4SC ATX Power Connector

ATXPWR1

ATX12V1

+12.0Volts

+5V Standby

Power Good

Ground

+5.0 Volts

Ground

+5.0 Volts

Ground +3.3 Volts +3.3 Volts

IMPORTANT

If you will need to replace the power supply in the future, make sure that your new 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.

ASUS Terminator P4 Barebone System

5. CPU, Chassis, and Power Fan Connectors (3-pin CPUFAN1, CHASFAN1)

The three fan connectors support cooling fans of 350mA (4.2 Watts) or a total of 1A (12W) at +12V. Orient the fans so that the heat sink fins allow air flow to go across the onboard heat sinks instead of the expansion slots. The fan wiring and plug may vary depending on the fan manufacturer. Connect the fan cable to the connector matching the black wire to the ground pin.

P4SC

CHASFAN1 CPUFAN1

+12V

GND

Rotation

+12V

GND

Rotation

P4SC 12-Volt Cooling Fan Power

IMPORTANT

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!

6. Smart Card Reader connector (14-1 pin SMARTC1)

This connector accommodates a Smart Card Reader that allows you to conveniently make transactions such as financial, health care, telephony, or traveling services through a Smart Card user interface software.

P4SC Smartcard

P4SC

SMARTC1

SCIO

RFU2

SCRST

SCPWR

SCRCLK

SCPSNT

GND

NC2

VCC

Chapter 3: Motherboard information

7. USB headers (10-1 pin USB2)

If the USB port connectors on the rear panel are inadequate, three USB headers are available for additional USB port connectors. The header labeled USB11_23 complies with the Universal Serial Bus (USB) 1.1 specification. Connect the bundled 2-port USB connector set to this header and mount the USB bracket to an open slot in the chassis.

P4SC

USB Power

USBP2–

USBP2+

GND

P4SC USB Ports

15 610

GND

USBP3–

USBP3+

USB Power

8. Digital audio connector (6-1 pin SPDIF1)

This connector connects an S/PDIF audio module that allows digital instead of analog sound output. Connect one end of the audio cable to the S/PDIF In/Out connector on the motherboard, and the other end to the S/PDIF module.

SPDIF1

P4SC

+5V

SPDIFOUT

GND

P4SC Digital Audio Connector

ASUS Terminator P4 Barebone System

9. Internal audio connectors (4-pin CD1, AUX, 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.

P4SC

Right Audio Channel

Left Audio Channel

Ground

Right Audio Channel

Left Audio Channel

Ground

P4SC Internal Audio Connectors

AUX1(White) CD1(Black)

Modem-In (to Modem) Ground

Modem-Out (from Modem)

MODEM

10. Front panel audio connectors (3-pin MICF, 3-pin SPEAKER)

These connectors connect to an optional front panel audio module using two 3-pin audio cables. If your chassis has this audio module, you may conveniently connect a microphone and a speaker/ headphone on the front panel.

MIC_LOUT1

P4SC

Head set Left channel

GNDHead set Right channel

P4SC Microphone Header

1 1

MIC SignalMIC PWR

Chapter 3: Motherboard information

11. Infrared module connector (two 5-1 pin IR1)

This connector supports an optional wireless transmitting and receiving infrared module. This module mounts to a small opening on system chassis that support this feature. You must also configure the UART2 Use As parameter in BIOS to set UART2 for use with IR. See section “4.4.2 I/O Device Configuration” for details.

Use the five pins as shown in Back View and connect a ribbon cable from the module to the motherboard SIR connector according to the pin definitions.

P4SC

IR1

+5V

GND

IRRX

Front View

IRTX

Back View

IRTX GND

IRRX

+5V (NC)

P4SC Infrared Module Connector

12. SIRQ1 connector (2-pin SIRQ1)

This connector allows you to connect the serial IRQ cable. This cable is required by some PCI cards such as those with PCMCIA function.

P4SC

P4SC SIRQ1 Connector

ASUS Terminator P4 Barebone System

SIRQ1

SERIRQ

GND

13. IO extension module connector (22-pin IOC_MB)

This connector is for the CGAEX extension module.

P4SC

COM1

CGAEX

IOC_DC

GAME

P4SC IOC_MB Connector

14. System panel connector (20-pin PANEL)

This connector accommodates several system front panel functions.

Speaker

PLED

Connector

Speaker

Ground

+5V

Ground

Power LED

P4SC

+5VSB

P4SC System Panel Connectors

+5 V

MLED

Ground

ExtSMI#

PWR

Ground

Reset

Ground

Reset SW

Message LED

ATX Power

SMI Lead

Requires an ATX power supply.

Switch*

Chapter 3: Motherboard information

• 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.

• IDE LED Lead (2-pin IDELED)

This 2-pin connector connects the hard disk activity LED cable.

• 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 Message LED Lead (2-pin MLED)

This 2-pin connector is for the system message LED that indicates receipt of messages from a fax/modem. The normal status for this LED is OFF, when there is no incoming data signal. The LED blinks when data is received. The system message LED feature requires an ACPI OS and driver support.

• 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.

ASUS Terminator P4 Barebone System

Chapter 3: Motherboard information

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