Acorp 4PX400 User manual

The information presented in this publication has been
made carefully for reliability; however, no responsibility
is assumed for inaccuracies. Specifications are subject
to change without notice.
Trademarks and/or registered trademarks are the
properties of their respective owners.
User's Manual Version 1.0
4PX400
1
IBM, PC/AT, and PC/XT are trademarks of Interna-
tionalBusinessMachinesCorporation.Socket478is
a trademark of Intel CorporationAWARDis a
registered trademark of Phoenix Software Inc. MS-
DOS and WINDOWSNT are registered trademarks
ofMicrosoftCorporation.

Table of Contents
Introduction
1. MotherboardDescription
1.1 Introduction 1-1
1.2 Package Contents 1-1
1.3 Features 1-2
1.44PX400 Motherboard Layout 1-4
1.5 CPU Installation 1-6
1.6DDR SDRAM Installation 1-7
1.7 Connectors & Jumper Setting
1.7.1 Back Panel Connectors
1.7.1.1 PS/2 Mouse/Keyboard CONN. 1-8
1.7.1.2 USB Port ; LAN Connector(optional) 1-8
1.7.1.3 Serial Interface ports 1-9
1.7.1.4 Parallel Interface port 1-9
1.7.1.5 Joystick / Midi Connector 1-9
1.7.1.6 Audio Port Connectors 1-9
1.7.2ATX 4/20-pin Power Conn.:ATX1/ATX2 1-10
1.7.3 Floppy Disk Connector: FDD1 1-11
1.7.4 Hard Disk Connectors: IDE1/IDE2 1-11
1.7.5 Fan Connectors: FAN1~3 1-11
1.7.6 CD-Audio-IN Connectors: CDIN1/CDIN2 1-12
1.7.7 Wake-On-LAN/Modem Connectors:
WOL/WOM 1-13
1.7.8 Front Panel Connector: PANEL1 1-13
1.7.9 CMOS Function Selection: JBAT1 1-14
1.7.10 CPU Clock Frequency Setting: JP4 1-16
1.7.11 Host Clock Frequency : JP6 1-17
1.7.12 AC'97 CODEC Setting: JP5 1-17
1.7.13 USB Power Select: J1 1-18
1.7.14 IR Infrared Module: IR 1-18
1.7.15 Smart Panel Function (optional) 1-19
ii

Table of Contents
1.7.15.1 Second BIOS Connector(SP-J2) 1-20
1.7.15.2 Port 80 Debug Function(SP-J6) 1-20
1.7.15.3AUX LINE Connector(SP-J5) 1-21
1.7.15.4 Front COM2 Port Conn.(SP-J7) 1-21
1.7.15.5 Front USB2,3 Connector(SP-J8) 1-21
2. BIOS Setup
2.1 Main Menu 2-4
2.2 Standard CMOS Features 2-7
2.3Advanced BIOS Features 2-10
2.4Advanced Chipset Features 2-14
2.5 Integrated Peripherals 2-19
2.6 Power Management Setup 2-25
2.7 PnP/PCI Configurations 2-30
2.8 PC Health Status 2-33
2.9 Frequency/Voltage Control 2-35
2.10 Load Fail-SafeDefaults 2-36
2.11 Load OptimizedDefaults 2-37
2.12 Set Supervisor/user Password 2-38
2.13 Save & Exit Setup 2-40
2.14 Exit Without Saving 2-41
3.Driver Installation
3.1AutoRun Menu 3-1
3.2 Installing VIA 4 in 1Driver 3-2
3.3 InstallingAudioDriver 3-5
3.4 Installing USB2.0Driver 3-7
3.56-ChannelAudio SpeakerConfiguration 3-9
a.Appendix
iii

1-1
Chapter 1 Motherboard Description
The 4PX400 motherboard is designed for using Intel P4
Front Side Bus Frequency 400/533MHz CPU, which utilizes the
Socket-478 design and the memory size expandable to 3.0GB.
This motherboard uses the latest VIA P4X400 chipset,
appling 533MHz (DoubleData Rate) Front Side Bus frequency
and 333MHz memory interface delivers a clear upgrade path to
the future generation of P4 processors, PC-1600/PC-2100/
PC2700/PC3200(only 2 Dimms supported)DDR SDRAM. The
4PX400motherboardoffersUltra ATA100/133toprovidespeedier
HDDperformance.
It is ideal for multi-tasking and fully supporting MS-DOS,
Windows, Windows NT , Windows ME, Windows 2000, Novell,
OS/2, Windows95/98, Windows 98SE, Windows XP, UNIX,
Liunx, SCO UNIX etc. This manual also explains how to install
the mainboard for operation, and how to setup your CMOS con-
figuration with the BIOS setup program.
1
Chapter
HDD UDMA66/100 Cable.
FDDCable.
Flash Memory written for BIOS.
USB1/2 Cable (Optional).
Fully setupDriver CD.
This Manual.
1.1 Introduction
1.2 Package Contents

1-2
Chapter 1 Motherboard Description
1.3 Features
*1-Upgrade BIOS from the website on this manual cover to support higher
frequency processor.
CPUProcessor
Chipset
VIAP4X400North Bridge.
VIA VT8235 South Bridge.
PCI/AGP Speed
Supports 33MHz PCI Bus speed.
SupportsAGP 66 MHz/1.5Vfor 8/4/2X device.
DDR SDRAM Memory
Supports 64/128/256/512....MBDDR module socket.
Supports SynchronousDRAM(2.5V)
Supports a maximum memory size of 3GB withDDR
SDRAM.
BusSlots
Provide one AGP slot. (Only support 1.5V connector)
Six 32-bit PCI bus.
Universal Serial Bus
Supports two back Universal Serial Bus(USB)Ports and
four front Universal serial Bus(USB)Ports.
For USB Controller USB V1.1& V2.0


Support 400MHz and 533MHz System Interface speed
orhigher.
Single Socket 478 for Intel P4/CeleronTM up to 2.8GHz
or higher*1.
Support IntelNetburstTM Micro-architecture.




1-3
Chapter 1 Motherboard Description
1.3 Features
AC 97 2.2 compatible stereo audio CODEC.
18-bit stereo full-duplex CODEC with independent and
variable sampling rate.
Sound Blaster and Sound Blaster Pro emulation.



Flash Memory
Onboard LAN (Optional)
BIOS
IDE Built-in On Board
WOL & WOM (Wake On LAN & Modem)
PCI-Based AC 97 Digital Audio Processor
Support 2MB flash memory.
Support ESCD Function.
Fast Ethernet Controller 10/100 Mbps.
The mainboard BIOS provides Plug & Play BIOS
which detects the peripheral devices and expansion
cards of the board automatically.
BIOS support CD-ROM, SCSI, LAN BOOT, Tempera
ture sensor, LAN, Modem,Alarm Bus CLK setup with
BIOS.
The mainboard provides a Desktop Management In-
ter face(DMI) function which records your mainboard
specifications.
Supports four IDE devices.
Supports PIO Mode 5, Master Mode, high perfor-
mance hard disk drives.
Support UltraDMA33/66/100/133 Bus Master Mode.
Supports IDE interface with CD-ROM.
Supports high capacity hard disk drives.
Supports system power on from LAN & Modem ring up.









1-4
Chapter 1 Motherboard Description
GAME1
VIA
VIA
FAN2
1
SONY
IDE2 IDE1
IDE
USB2
1
1
Ir1 1
JBAT1
SP-J6
2
1
PCI3
PCI4
PCI5
PCI6
FDD1
FDD
I/O CHIP
SP-J5
61
2
5
1
J4
FAN3
1
T:Mouse
B:KB
PCI1
PCI2
PCI Slot
AGP SLOT
AGP Slot
CdIN2
CdIN1
1
ATX1
Power
FAN1
1
T:LAN (Optional)
B:USB1
Speak out
Line in
MIC in
COM1
COM2
Printer
ATX Power
Supply connector
ATX2
1
PANEL1
SP-J7
2
1
Jp5
1
J1
DDR2
DDR1
DDR
DDR3
Socket
478
SP-J2
2
1
WOM
WOL
SP-J8
1
JP4
2 4
1 3
JP2
2 4
1 3
JP-G1
2 4
1 3
JP6
2 4
1 3
1
Vj1 Vj5
1.Back Panel I/O Connectors (Mouse, Keyboard, USB1,COM1,
COM2, Printer, MIC in, Line in, Speaker out,Game stick,
LAN (Optional))
2.ATXPowerConnectors(ATX1/ATX2)
3. CPU Processor (Socket 478)
4.DDR SDRAM Sockets (DDR1/DDR2/DDR3)
10
1
10
7
22 22
19
15
2
22
6
14
11 17
16
5
4
9
8
3
12,13
1.4 4PX400 Layout
22
22
21
10
20
18

1-5
Chapter 1 Motherboard Description
5. AGP Slot
6. Floppy Connector
7. IDE Connectors (IDE1/IDE2)
8.North Bridge (VIAP4X400)
9. South Bridge (VIA VT8235)
10. Fan Connectors (FAN1/FAN2/FAN3)
11. CDAudio-InConnectors(CDIN1/CDIN2)
12. Wake-On-LANConnector (WOL)
13. Wake-On-Modem Connector (WOM)
14. Front Panel Connector (PANEL1)
15. Front USB Port Connectors (USB2/USB3[SP-J8])
16. CMOS Function Selection (JBAT1)
17. CPU Clock Frequency Setting (JP4)
18.AC’97 CODEC Selection (JP5)
19. Host Clock Frequency (JP6)
20. USB Power Select (J1)
21. IR Connector
22. Smart Panel Function (SP-J2/SP-J5/SP-J6/SP-J7/SP-J8
(optional)

1-6
Chapter 1 Motherboard Description
GAME1
VIA
VIA
FAN2
1
SONY
IDE2 IDE1
IDE
USB2
1
1
Ir1
1
JBAT1
SP-J6
2
1
PCI3
PCI4
PCI5
PCI6
FDD1
FDD
I/O CHIP
SP-J5
61
2
5
1
J4
FAN3
1
T:Mouse
B:KB
PCI1
PCI2
PCI Slot
AGP SLOT
AGP Slot
CdIN2
CdIN1
1
ATX1
Power
FAN1
1
T:LAN (Optional)
B:USB1
Speak out
Line in
MIC in
COM1
COM2
Printer
ATX Power
Supply connector
ATX2
1
PANEL1
SP-J7
2
1
Jp5
1
J1
DDR2
DDR1
DDR
DDR3
Socket
478
SP-J2
2
1
WOM
WOL
SP-J8
1
JP4
2 4
1 3
JP2
2 4
1 3
JP-G1
2 4
1 3
JP6
2 4
1 3
1
Vj1 Vj5
The motherboard operates with Socket 478 for Intel P4TM
processor. The CPU should always has a Heat Sink and cool-
ing fan attached to prevent overheating.
CPU Installation Procedures: Socket 478
1. Pull the lever sideways away from the socket then
raise the lever to a 90-degree angle.
2. Locate Pin 1 in the socket and look for the white dot or
cut edge in the CPU. Match Pin 1 with the white dot
or cut edge then insert the CPU.
3. Press the lever down to complete the installation.
4. Be sure that Pin 1 of Socket 478 is matching with
Pin 1 of CPU.
5. Be sure that all CPU pins are completely in soc-
ket before pressing down the socket lever.
mPGA478B
Socket 478
Notch
1.5 CPU Installation

1-7
Chapter 1 Motherboard Description
The motherboard supports a maximized 3GB memory. It pro-
vides three 184-pin unbufferedDDR sockets. It supports 64MB
to 1GBDDR memory module.
DDR DRAM Installation Procedures:
80pins 104 pins
Note: Be sure to turn off system power whenever to insert or re-
move a Memory Module. Without it, you will possibly damage the mod-
ule even the system.
1.6 DDR SDRAM Installation
TheDDR socket has a “Plastic Safety Tab” and theDDR memory
module has an asymmetrical notch”, therefore theDDR memory
module can only fit into the slot in one direction.
Push the tabs out. Insert the DDR memory modules into the
socket at a 90-degree angle then push down vertically to fit onto
place.
The Mounting Holes and plastic tabs should fit over the edge
and hold the DDR memory modules in place.



Bank Memory module
DDR 1/2/3 64MB, 128MB, 256MB, 512MB, 1GB
184 pin, 2.5VDDR SDRAM
Total System Memory (Max 3GB)
184Pin DIMM Socket