DFI P2XLX User manual

P2XLX
Rev. AH+
System Board
Users Manual
34530832

Copyright
This publication contains information that is protected by copyright. No
part of it may be reproduced in any form or by any means or used to
make any transformation/adaptation without the prior written permission
from the copyright holders.
This publication is provided for informational purposes only. The
manufacturer makes no representations or warranties with respect to
the contents or use of this manual and specifically disclaims any express
or implied warranties of merchantability or fitness for any particular purpose.
The user will assume the entire risk of the use or the results of the use of
this document.Fur ther,the manufacturer reserves the right to revise this
publication and make changes to its contents at any time, without obligation
to notify any person or entity of such revisions or changes.
All Rights Reserved. © 1998
Trademarks
Microsoft®MS-DOS®, WindowsTM and Windows®95 are registered
trademarks of Microsoft Corporation. Intel®,Pentium®II and CeleronTM
are registered trademarks of Intel Corporation. Award is a registered
trademark of Award Software, Inc. Other trademarks and registered
trademarks of products appearing in this manual are the properties of
their respective holders.
Caution:
Danger of explosion if battery incorrectly replaced.
Replace only with the same or equivalent type recommended by the
manufacturer.
Dispose of used batteries according to the battery manufacturers
instructions.

FCC and DOC Statement on Class B
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a residential
installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio
communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to tr y to correct the interference by one or more of the
following measures:
 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and the receiver.
 Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
 Consult the dealer or an experienced radio TV technician for
help.
Notice:
1. The changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority
to operate the equipment.
2. Shielded interface cables must be used in order to comply with
the emission limits.

Table of Contents
Chapter 1 - Introduction
1.1 Features and Specifications...................................................................................
1.2 Package Checklist..........................................................................................................
7
12
Chapter 3 - Award BIOS Setup Utility
3.1 The Basic Input/Output System......................................................................
3.1.1 Standard CMOS Setup....................................................................
3.1.2 BIOS Features Setup..........................................................................
3.1.3 Chipset Features Setup....................................................................
3.1.4 Power Management Setup............................................................
3.1.5 PNP/PCI Configuration.....................................................................
3.1.6 Load Fail-Safe Settings......................................................................
3.1.7 Load Optimal Settings..........................................................
3.1.8 Integrated Peripherals...........................................................
3.1.9 Supervisor Password............................................................
3.1.10 User Password.........................................................................
3.1.11 IDE HDD Auto Detection................................................
3.1.12 Save & Exit Setup...................................................................
3.1.13 Exit Without Saving................................................................
42
42
46
50
52
55
57
58
58
61
62
62
63
63
Chapter 2 - Hardware Installation
2.1 System Board Layout ..............................................................................................
2.2 Installation Steps.............................................................................................................
2.2.1 Installing System Memory.....................................................................
2.2.2 Installing a Processor.................................................................................
2.2.3 Setting the Jumpers on the System Board.........................
2.2.4 Installing Expansion Cards...................................................................
2.2.5 Connecting the Ribbon Cables and Wires of the
Ports and Connectors..............................................................
2.2.6 Installing the System Board....................................................
14
15
15
17
26
27
29
40

Appendix A - System Error Messages
A.1 POST Beep.......................................................................................................................
A.2 Error Messages............................................................................................
72
72
Appendix B - Troubleshooting
B.1 Troubleshooting Checklist...................................................................................... 75
Chapter 4 - Supported Softwares
4.1 Desktop Management Interface......................................................................
4.2 System Health Monitor Utility............................................................................
4.3 IDE Drivers.........................................................................................................................
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P2XLX System Board Users Manual
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1
Introduction
CHAPTER

1
Introduction
7
1.1 Features and Specifications
1.1.1 Features
Chipset
 Intel

440LX AGPset
Processor
The system board is equipped with a 242-pin Intel

Slot 1
processor slot for installing an Intel Pentium

II processor that is
packaged in an SEC (Single Edge Contact) cartridge.
 233/266/300/333MHz Pentium

II processor
 266/300/300A/333 Celeron
ΤΜ
processor
System Memory
The system board supports 8MB to 384MB using unbuffered
SDRAM or EDO memory. It is equipped with three 168-pin
DIMM sockets using x64/x72 EDO (50/60ns) or SDRAM (10/12/
13ns), 3.3V. It also supports EC and ECC (uses x72 DRAM).
Expansion Slots
The system board is equipped with 1 dedicated AGP slot, 3
dedicated PCI slots, 2 dedicated 16-bit ISA slots and 1 shared PCI/
ISA slot. All PCI and ISA slots are bus masters.
Desktop Management Interface (DMI)
The system board comes with a DMI 2.0 built into the BIOS. The
DMI utility in the BIOS automatically records various information
about your system configuration and stores these information in the
DMI pool, which is a part of the system board's Plug and Play
BIOS. DMI, along with the appropriately networked software , is
designed to make inventory, maintenance and troubleshooting of
computer systems easier. Refer to Chapter 4 for instructions on
using the DMI utility.

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8
Onboard I/O
 Two NS16C550A-compatible DB-9 serial ports
 One SPP/ECP/EPP DB-25 parallel port
 One floppy drive interface supports up to two 2.88MB floppy
drives
 One mini-DIN-6 PS/2 mouse port
 One mini-DIN-6 PS/2 keyboard port
 One WOL (Wake-On-LAN) connector
PCI Bus Master IDE Controller
 Two PCI IDE interfaces support up to four IDE devices
 Ultra DMA/33 supported (Synchronous Ultra DMA mode -
data transfer rate up to a maximum of 33MB/sec.)
 PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up
to 16.6MB/sec.)
 Bus mastering reduces CPU utilization during disk transfer
 ATAPI CD-ROM supported
 LS-120 and ZIP supported
IrDA Interface
The system board is equipped with an IrDA connector for wireless
connectivity between your computer and peripheral devices. It
supports peripheral devices that meet the IrDA or ASKIR
standard.
USB Ports
The system board is equipped with two USB ports. USB allows
data exchange between your computer and a wide range of
simultaneously accessible external Plug and Play peripherals.
BIOS
 Award BIOS, Windows

95 Plug and Play compatible
 Flash EPROM for easy BIOS upgrades

1
Introduction
9
ATX Power Supply Connector
The system board is equipped with an ATX power supply connector.
Using an ATX power supply, you can either shut down your com-
puter by pressing the Power button located on the front bezel of
your computer or by executing the Shut Down command under the
Windows

95 operating system.Your system will then enter the Soft
Off  state.
To power-on your system automatically, enable Resume By Alarm in
the Power Management Setup of the Award BIOS. This will allow
you to set the date and time you would like your system to power-
on.
1.1.2 Technology
AGP (Accelerated Graphics Port)
The system board is equipped with 1 AGP slot. AGP is an interface
designed to support high performance 3D graphics cards. It utilizes a
dedicated pipeline to access system memory for texturing, z-buffering
and alpha blending; delivering up to 533MB/sec. bandwidth for 3D
graphics applications. AGP in this Pentium

II processor based system
board will deliver faster and better graphics with your PC.
SDRAM (Synchronous Dynamic Random Access Memory)
The system board supports unbuffered SDRAM memory. SDRAM is
a DRAM technology that uses the clock on the chip to synchronize
with the CPU clock so that the timing of the memory chips and the
timing of the CPU are synchronized. This saves time during
transmission of data, subsequently increasing system performance.
Ultra DMA/33 Bus Master IDE
Synchronous Ultra DMA mode provides data transfer rate up to a
maximum of 33MB/sec, which is twice the data transfer rate of
Enhanced IDE or ATA-2. This enables the CPU to operate more
efficiently when handling simultaneous events.

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ECC (Error Checking and Correction)
ECC is a function that allows the system to recover from memor y
failure. It detects single-bit and multiple-bit errors and corrects single-
bit error thus providing uninterrupted processing of data. To use this
function, you must install DIMM that supports parity. Refer to the
Installing System Memory section in Chapter 2 of this manual.
ACPI (Advanced Configuration and Power Interface)
The system board is designed to meet the ACPI specification. ACPI
has energy saving features that enables PCs to implement Power
Management and Plug-and-Play with operating systems that suppor t
OS Direct Power Management.
PC 97 Compliant
The system board is PC 97 compliant. This will optimize your PC
system to run Windows

95 and Windows NT

and future
versions of these operating systems.
1.1.3 Intelligence
Monitors Processor Temperature and Overheat Alarm
The system board is able to detect the temperature of the
processor. An alarm will sound in case of processor overheat. Refer
to Chipset Features Setup (Chapter 3) and System Health
Monitor Utility (Chapter 4) for more information.
Monitors Processor/Chassis Fan Speed and Failure Alarm
The system board is able to detect the fan speed (RPM-Revolution
Per Minute) and aler ts you to attend to any irregularity that may
damage your system. Refer to Chipset Features Setup (Chapter 3)
and System Health Monitor Utility (Chapter 4) for more information.
Monitors Power Voltages and Failure Alarm
The system board is able to detect the output voltage of the power
supply. An alarm will sound warning you of voltage irregularity. Refer
to Chipset Features Setup (Chapter 3) and System Health
Monitor Utility (Chapter 4) for more information.

1
Introduction
11
Automatic Fan Control
With the systems power switched on, the processors fan will rotate
only if the temperature of the processor is over 25oC. This saves
energy, prevents system overheat, prolongs fan life and implements a
silent system.
Dual Function Power Button
Depending on the setting in the BIOS setup, this switch will allow
your system to enter the Soft-Off or Suspend mode. Soft-Off By
PWR-BTTN in the Power Management Setup (Chapter 3) allows
you to select the method of powering off your system.
External Modem Ring-on
The Modem Ring-on feature allows the sleeping (Suspend mode) or
Soft Power Down (Soft-Off) PC to power-on to respond to
incoming calls. Enable this function in the Resume By Ring/LAN field
of the Power Management Setup (Chapter 3).
Note:
This feature supports external modem only.
RTC Timer to Power-on the System
The RTC installed on the system board allows your system to
automatically power-on on the set date and time. Set the date and
time you would like your system to power-on in the Resume By
Alarm field of the Power Management Setup (Chapter 3).
Wake-On-LAN Ready
The Wake-On-LAN function allows the network to power-on a Soft
Power Down (Soft-Off) PC. To use the Wake-On-LAN function,
make sure your LAN card also support this function. Refer to the
Wake-On-LAN Connector section (Chapter 2) and Resume By
Ring/LAN field in the Power Management Setup (Chapter 3) for
more information.

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Virus Protection
Most viruses today destroy data stored in hard drives. The system
board is designed to protect the boot sector and partition table of
your hard disk drive. If an attempt is made to write to the boot
sector or partition table of the hard disk drive, the BIOS will halt the
system and an error message will appear. Refer to the Virus
Warning field in the BIOS Features Setup (Chapter 3) for more
information.
1.2 Package Checklist
The system board package contains the following items:
þThe system board
þA users manual
þOne 40-pin IDE hard disk cable
þOne 34-pin floppy disk drive cable
þOne CD
þOne I/O shield
þFive spare jumpers
If any of these items are missing or damaged, please contact your
dealer or sales representative for assistance.

2
Hardware Installation
CHAPTER

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P2XLX System Board Users Manual
2.1 System Board Layout

2
Hardware Installation
15
2.2 Installation Steps
Warning:
Electrostatic discharge (ESD) can damage your system board,
processor, disk drives, add-in boards, and other components.
Perform the upgrade instruction procedures described at an
ESD workstation only. If such a station is not available, you can
provide some ESD protection by wearing an antistatic wrist
strap and attaching it to a metal part of the system chassis. If
a wrist strap is unavailable, establish and maintain contact with
the system chassis throughout any procedures requiring ESD
protection.
The following outlines the basic installation steps prior to installing
the system board into the chassis.
2.2.1 Install the System Memory
2.2.2 Install the Processor
2.2.3 Set the Jumpers on the System Board
2.2.4 Install the Expansion Cards
2.2.5 Connect the Ribbon Cables and Wires of the Ports and
Connectors
2.2.6 Install the System Board
2.2.1 Installing System Memory
The system board is equipped
with three 168-pin DIMM (Dual
In-line Memory Module)
sockets. It supports 8MB to
384MB memory using x64/x72
unbuffered SDRAM or EDO
DIMM, 3.3V.
The system board supports the
Error Checking and Correction
(ECC) function. To use this
function, you must install DIMM

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P2XLX System Board Users Manual
1. Pull the tabs which are at the ends of the socket to the side.
2. Position the DIMM above the socket with the notches in the
module aligned with the keys on the socket.
3. Seat the module vertically into the socket. Make sure it is
completely seated.The tabs will hold the DIMM in place.
Pin 1
Notch
Key
Tab
Tab
Installing the DIM Module
A DIM module simply snaps into a socket on the system board. Pin
1 of the DIM module must correspond with Pin 1 of the socket.
that supports parity. That is, DIMM that typically has 9 memor y
chips per side. This kind of module has 8 standard memory cihps
and a parity chip. DIMM with no parity has 8 standard memory
chips only.
The table below shows the supported DIM modules and their
corresponding memory sizes. You may install DIMM in any DIMM
sockets. Memory size and speed can vary between sockets. The
BIOS will automatically detect the memory type, size and speed.
DIMMs
1MBx64/x72
2MBx64/x72
4MBx64/x72
8MBx64/x72
16MBx64/x72
Memory Size
8MB
16MB
32MB
64MB
128MB

2
Hardware Installation
17
2.2.2 Installing a Processor
The system board is equipped
with a 242-pin processor slot for
installing an Intel Pentium

II
processor that is packaged in an
SEC (Single Edge Contact)
cartridge.
Warning:
The processor must be
kept cool by using a fan
with heatsink. Leave certain
space clearances to
maintain proper airflow once the processor and heatsink are
installed. All cables (for floppy drive, hard drive, CD-ROM, etc.)
must be routed clear of the processor and its airspace.
Otherwise, the processor will overheat and damage the
processor and the system board.
2.2.2.1 Installing the Retention Mechanism
The system board comes with an easy-to-install Retention
Mechanism package. The Retention Mechanism is used to hold an
Intel Pentium®II processor to the processor slot. Make sure the
system board is on a workbench (not in the chassis). To install the
Retention Mechanism, follow the steps below.
1. Unpack the Retention Mechanism package.

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P2XLX System Board Users Manual
2. Hold the Retention Mechanism upright and position it above the
processor slot.
4. Firmly press the "pins" located at the 4 corners of the Retention
Mechanism to as far as it will go. These pins will stabilize the
Retention Mechanism onto the system board.
3. Now slide the Retention Mechanism downward so that it fits
over the processor slot. Firmly press the ends of the Retention
Mechanism until it snaps into place.The Retention Mechanism will
only fit in one direction. It has a keying mechanism so that the
notch on one of the inner side of the Retention Mechanism will
fit into the key on one side of the processor slot.

2
Hardware Installation
19
2.2.2.2 Installing Boxed Processor
1. Mount the two black plastic pegs onto the system board. These
pegs will be used to attach the fan heatsink supports. Notice
that one hole and the base of one peg are larger than the
other hole and peg base. Push each peg into its hole firmly until
you hear it click into place.
2. Slide a black plastic heatsink support onto each end of the fan
heatsink, making sure that the hole and clip are on the outside
edge of the support. (If the supports are reversed, the holes
will not line up with the pegs on the system board). Slide each
heatsink support toward the center of the processor until the
support is seated in the outside groove in the fan housing.
Retention
mechanism
Large peg
and hole
Top of processor
Hole and clip on
outside edge
Heatsink
support
Outside groove
in fan housing
Attached
fan/heatsink

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P2XLX System Board Users Manual
3. Slide the clip (A) on each support toward the processor,
exposing the hole that will fit over the peg on the system
board. Push the latches (B) on the processor toward the center
of the processor until they click into place.
4. Hold the processor so that the fan shroud is facing toward the
pegs on the system board. Slide the processor (C) into the
Retention Mechanism and slide the supports onto the pegs.
Ensure that the pegs on the system board slide into the holes
in the heatsink support and that the alignment notch in the
processor fits over the plug in the processor slot. Push the
processor down firmly, with even pressure on both sides of the
top, until it is seated.
5. Slide the clips on the supports (A) forward until they click into
place to hold the pegs securely. (Apply slight pressure on the
peg and push the peg toward the clip while pushing the clip
forward.) Push the latches on the processor (B) outward until
they click into place in the Retention Mechanism. The latches
must be secured for proper electrical connection of the
processor.
6. Attach the small end of the power cable (C) to the three-pin
connector in the processor, then attach the large end to the
three-pin connector (J4 - fan connector) on the system board.