Taiwan Commate Computer Inc. P2BXA-V Original operating instructions

P2BXA-V, P2BXA-VP Quick Installation Chart
For your convenience, this chart lists all the CPUs supported by P2BXA-V or P2BXA-VP and their
corresponding jumper setting.
CPU Model Ratio JF0 JF1 JF2
350/100 233/66 3.5x 1-2 2-3 2-3
400/100 266/66 4.0x 2-3 1-2 1-2
450/100 300/66 4.5x 2-3 1-2 2-3
500/100 333/66 5.0x 2-3 2-3 1-2
550/100 366/66 5.5x 2-3 2-3 2-3
The Ratio of some latest CPUs are fixed by Intel, such as Celeron 366,400...etc. You can ignore the three
jumpers if you have this CPU on board and it will be auto detected by motherboard. Please check with the
CPU manufacturer or vendor for the CPU Ratio information.
Panel Connectors
JFRNT1 Connector Function
GREENLED Suspend Mode LED
PWRLED Power LED
KEYLK Keylock Switch
SPKR Speaker
RESET Reset Switch
IDELED HDD LED
PWRBNT ATX Power Button Connector
SMISW Sleep Switch

P2BXA-V, P2BXA-VP Motherboard
User's Manual
Product Name : P2BXA-V, P2BXA-VP
Manual Revision : English, 1.4
Trademarks
Intel and Pentium II AND Pentium III are trademarks of Intel Corporation
Award is a trademark of Award Software International Inc.
MS-DOS, Windows 95, Windows 98 and Windows NT are registered trademarks of Microsoft Corporation
Novell is a trademark of Novell Corporation
Sound Blaster SB16 is a trademark of Creative Technology
All other brand and product names are trademarks or registered trademarks of their respective companies.
Table of Contents
Chapter 1. Introduction
1.1 Product Overview
1.2 Features
1.3 Specifications
1.4 Content
1.5 System Board Layout
Chapter 2. Hardware Setup
2.1 Installation Procedure
2.1.1 Jumper Settings
2.1.2 Clearing the CMOS
2.1.3 CPU Voltage Setting
2.1.4 CPU Frequency Selection
2.1.5 CPU FSB Frequency Setting
2.2 Installation of CPU
2.3 Installation of Memory
2.3.1 Installation of 168-pin DIMM
2.3.2 Removal of 168-pin DIMM
2.3.3 Memory Configuration
2.4 I/O Connections/Panel Connections
2.4.1 ATX Power Connector
2.4.2 Power, Chassis & CPU Fan Connectors
2.4.3 Infrared Connector

2.4.4 Wake-up on LAN Connector
2.4.5 Floppy Disk Drive Connector
2.4.6 Primary/Secondary IDE Connector
2.4.7 PS/2 Mouse Port
2.4.8 PS/2 Keyboard Connector
2.4.9 Serial Port
2.4.10 Printer Port
2.4.11 USB Connectors
2.4.12 Panel Connection
Chapter 3. BIOS Setup
3.1 CMOS Setup Utility
3.2 Standard CMOS Setup
3.3 BIOS Features Setup
3.4 Chipset Features Setup
3.5 Power Management Setup
3.6 PNP/PCI Configuration Setup
3.7 Integrated Peripherals
3.8 Load BIOS Defaults
3.9 Load Setup Defaults
3.10 Supervisor/User Password
3.11 IDE HDD Auto Detection
3.12 Exit CMOS Setup Utility
Chapter 1. Introduction
1.1 Product Overview
Thank you for purchasing the P2BXA-V or P2BXA-VP motherboard. This motherboard utilizes VIA's latest
technology, namely VT82C693 & VT82C596A or VT82C693A & VT82C596B chipset. We have conducted
a motherboard compatibility test with a variety of hardware and software, such as CPUs, memory, display
cards, CD ROMs, Novell, MS Office....etc and has passed NSTL Year 2000 certification test program.
We have set high standards on our quality control, with absolute confidence, we believe this product is the
wisest choice.
This manual is composed of three sections. The first section is the introduction of this motherboard, and the
second section explains the proper procedure to setup the motherboard, the third section provides
information on how to setup the CMOS.
1.2 Features:
Support Desktop Management Interface (DMI) through BIOS.
Support Accelerated Graphics Port (AGP) cards for high performance.
Modem Remote Ring On.
Wake up on LAN.
RTC Wake Up Alarm: Program the date/time to wake up your system.
BIOS Green feature function, and Plug & Play Flash ROM.
Support 133MHz FSB frequency. (for P2BXA-VP only)
Both the BIOS and hardware levels of the motherboard meet PC '99 compliant. (for P2BXA-VP only)
Support Desktop Management Interface (DMI) through BIOS. (for P2BXA-VP only)
Support Advanced Configuration Power Interface (ACPI). (for P2BXA-VP only)
Support NCR SCSI BIOS. (for P2BXA-VP only)
Support Ultra DMA 66. (for P2BXA-VP only)
1.3 Specifications
CPU : -Supports Intel Celeron, Pentium II, Pentium III with 66/100 FSB
Processors. P2BXA-VP also supports 133MHz FSB processors.
Chipset : -VIA VT82C693 & VT82C596A for P2BXA-V

-VIA VT82C693A & VT82C596B for P2BXA-VP
DIMM : -Supports 3.3V EDO or SDRAM in 3 168-pin banks,each bank consists
of 1x168-pin 64-bit DIMM socket, which can support memory sizes of
8/16/32/64/128/256 MB modules. P2BXA-VP can also support 512KB
memory.
-Supports up to a maximum of 768 MB system memory (P2BXA-VP
supports up to 1.5GB system memory)
IDE : -Dual channel PIO and PCI Bus Master IDE ports support up to 4 EIDE
devices for HDD or CD-ROM
-Supports PIO Mode 4 with data transfer rate up to 14 MB/Sec
-Supports Ultra DMA 33/66 (UDMA) with data transfer rate up to 33/66
MB/Sec. (P2BXA-V supports DMA 33 only)
BIOS : -Award BIOS V.4.51 with built-in Anti-Virus, DMI support, and green
function (Plug-and-Play BIOS)
-Supports CD-ROM, SCSI, and LS120/ZIP boot up
I/O Devices : -One FDD control port supports two of the 5.25" or 3.5" floppy drives up
to 2.88 MB.
-Two high-speed 16550 UART compatible serial ports
-One parallel ports with ECP/ EPP compatibility.
-One PS/2 mouse port
-One PS/2 Keyboard connector
IR Port : -One IrDA/ASKIR compatible Infrared interface port.(Cable optional)
USB Ports : -Two Universal Serial Bus (USB) ports support up to 127 peripheral
devices.
ATX Power : -Supports Modem remote Ring-On function
-Supports software power off function
-Supports RTC Wake-Up.
-Supports Wake up on LAN.
Expansion Slots : -Four 32-bit PCI expansion slots
-Three 16-bit ISA expansion slots
-One 32-bit AGP expansion slot
Others : -Supports Creative's Sound Blaster 16 compatibility for real-mode DOS
games.
Operating System : -Supports Windows 95/98, Windows NT, MS-DOS V. 6.22, OS/2,
Novell, Unix, SCO UNIX.....
Dimension : -305 mm x 180 mm ATX Form factor
1.4 Content
The P2BXA-V motherboard box contains the following items:
- One Motherboard
- One 40-pin IDE Ribbon Cable
- One 80-pin IDE Ribbon Cable (optional)
- One Floppy Ribbon Cable
- One Retention mechanism
- One Driver diskette
- User's Manual & Quick Installation Chart
1.5 MotherBoard Layout

Chapter 2. Hardware Setup
2.1 Installation Procedure
1. Jumper settings (BIOS and CPU)
2. Installation of CPU
3. Installation of Memory
4. I/O Connections & Panel Connections

2.1.1 Jumper Settings
In this manual , [1-2] represents the first and second pins of the jumper. [2-3] represents the second
and third pins of the jumper. On the motherboard, you will see two sets of jumpers with different color
jumper caps:
Yellow Jumper
Caps: Sets the Function of Flash CMOS JRTC1
Green Jumper
Caps: Sets the type and speed of CPU JF0, JF1, JF2
Red Jumper Cap: Sets the FSB frequency of CPU JFSB
WARNING: Electronic parts are Static sensitive. To prevent damage to the computer and its parts please
take the following measures.
Work on a surface such as concrete, linoleum or hard wood floor.
Ground your self with either a properly installed grounding strap or by touching a major electrical appliance
long enough to discharge the static.
2.1.2 Clearing the CMOS[Yellow Jumper Caps]
JRTC1: CMOS Function Selection
1-2:Clear data
2-3：Normal Operation(Default Setting)
How to Clear the CMOS Setting
1. Turn off the power.
2. Remove ATX power cable from connector J3.
3. Remove Yellow Jumper Cap from JRTC1(2-3)and put on JRTC1(1-2)to remove the CMOS setting.
4. Remove Yellow Jumper Cap from JRTC1(1-2)and put on JRTC1(2-3).
5. Connect ATX power cable back to connector J3.
6. Turn on the power.
7. While the system reboots, press <DEL> key to set the BIOS setup.
2.1.3 CPU Voltage Setting
The motherboard supports Pentium II VID function, the CPU core voltage is automatically detected, the
range is from 1.3V to 3.5V.
2.1.4 CPU Frequency Selection
CPU Model Ratio JF0 JF1 JF2
350/100 233/66 3.5x 1-2 2-3 2-3
400/100 266/66 4.0x 2-3 1-2 1-2
450/100 300/66 4.5x 2-3 1-2 2-3
500/100 333/66 5.0x 2-3 2-3 1-2
550/100 366/66 5.5x 2-3 2-3 2-3
The Ratio of some latest CPUs are fixed by Intel, such as Celeron 366,400...etc. You can ignore the three
jumpers if you have this CPU on board and it will be auto detected by motherboard. Please check with the
CPU manufacturer or vendor for the CPU Ratio information.

2.1.5 CPU FSB Frequency Setting
The JFSB jumper provides three FSB frequency settings for the CPU. Auto Detect , 66MHz or 100MHz or
133MHz FSB frequency can be selected with this jumper. The 100MHz FSB frequency setting is over
specification operation for 66MHz FSB CPU. The over specification operation is not recommended.
2.2 Installation of CPU
The motherboard provides a Single Edge Contact(SEC)slot for a Pentium II processor packaged in an SEC
cartridge. Follow these steps to install Pentium II CPU:
Mount the Universal Retention Mechanism (URM) & Insert the Pentium II CPU: ( The illustration is just
for reference )
This URM was designed to accommodate 3 types of CPU Form Factor. ( SECC, SECCII & SEPP ). For
Example : Pentium II, Pentium III & Celeron family.
Note : Please put a soft pad under M/B before the installation of URM.
Installation for SECC CPU :

1. Leave space below each mounting hole for the fastener to protrude through the hole.
2. Position URM on the M/B next to the slot1 connector.
3. Push down retainer pin into respective fastener to secure URM onto the M/B.
4. Push CPU into URM to contact with slot1.
5. Make sure latching portion of CPU engaged with windows ledge of URM.
Installation for SECC II or SEPP CPU :
1. Same as step (1) of SECC.
2. Same as step (2) of SECC.
3. Same as step (3) of SECC.
4. Same as step (4) of SECC.
5. Snap in 2 clips into side windows of URM to secure SEPP CPU.
If there is a fan on CPU, please plug in the fan cable to the three pin fan connector on the motherboard (
CPUFAN ).
2.3 Installation of Memory
The motherboard has 3x168-pin 64-bit Dual Inline Memory Module(DIMM)sockets divided into 3 banks. You
can install 3.3V Extended Data Output (EDO)or Unbuffered Synchronous DRAM(SDRAM)memory. This will
increase the system reliability.
2.3.1 Installation of 168-pin DIMM [Dual Inline Memory Module]
1. Before inserting the DIMM, make sure the pin1 of the DIMM matches with the pin1 on the DIMM socket.
2. Insert DIMM into the DIMM sockets at a 90-degree angle and press down.
2.3.2 Removal of 168-pin DIMM
1. Press the holding clips on both sides of the socket outward to release the DIMM.
2. Gently pull the DIMM out of the socket.
2.3.3 Memory Configuration
There is no jumper setting required for the memory size or type. It is automatically detected by the system
BIOS, and the total memory size is to add them together.
DIMM Socket DIMM Modules
DIMM1 EDO/SDRAM 8, 16, 32, 64, 128, 256MB

DIMM2 EDO/SDRAM 8, 16, 32, 64, 128, 256MB
DIMM3 EDO/SDRAM 8, 16, 32, 64, 128, 256MB
2.4 I/O Connections/Panel Connections
I/O Connections
J3 ATX Power Connector
PWRFAN Power fan connector
CHASSFAN Chassis fan connector
CPUFAN CPU fan connector
JIR1 Infrared Connector ( Cable optional )
JP1 Wake up on LAN connector
JFLP1 Floppy Disk Drive Connector
IDE1, 2 Primary/ Secondary IDE Connectors
JMOUSE1 PS/2 Mouse Port
JKB1 PS/2 Keyboard Connector
JCOM1, 2 Serial Ports 1 & 2
JPRT1 Printer Port
USB1, 2 USB Connector
2.4.1 ATX Power Connector (20-pin J3)
Make sure that the power supply is off before connecting or disconnecting the power cable.
2.4.2 Power, Chassis & CPU Fan Connectors (3-pin FAN)
Connect the fan's plug to the board taking into consideration the polarity of the connector.
2.4.3 Infrared Connector (5-pin JIR1)
This connector supports the optional wireless transmitting and receiving infrared module, with this
module and application software such as Laplink or Win95 Direct Cable Connection, user can
transfer files to or from their laptops, notebooks, PDA, PCs and printers. The connector supports

IrDA (115.2Kbps, 2 meters) and ASK-IR (56Kbps). Install infrared module onto Infrared connector
and configure the setting through 'UART Mode Select' in Integrated Peripherals to select whether
UART is directed for use with COM2 or Infrared.
2.4.4 Wake-up on LAN Connector (3-pin JP1)
The JP1 connector powers up the system when a wakeup packet or signal is received from the
network . This feature requires the Wake up on LAN function in BIOS is set to Enabled and that your
system has an ATX power supply with at least 720mA +5V standby power.
2.4.5 Floppy Disk Drive Connector (34-pin JFLP1)
This connector supports the provided floppy disk drive ribbon cable. Orient the red stripe to pin 1
2.4.6 Primary/Secondary IDE Connector (Two 40-pin IDE)
These connectors support the provided IDE hard disk ribbon cable. Connect your first IDE hard disk
to master mode of the primary channel. If you have second IDE device to install in your system,
connect it as slave mode on the same channel, and the third and fourth device can be connected on
secondary channel as master and slave mode respectively.