DFI 845PE-ML User manual

845PE-ML
Rev.A+
System Board
User’s Manual
78200350

Copyright
This publication contains information that is protected by copy-
right. 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. Further, 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.
© 2004. All Rights Reserved.
Trademarks
Windows®98 SE, Windows®ME, Windows®2000, Windows NT®
4.0 and Windows®XP are registered trademarks of Microsoft
Corporation. Intel®and Pentium®4 are registered trademarks of
Intel Corporation. Award is a registered trademark of Award Soft-
ware, Inc. Other trademarks and registered trademarks of prod-
ucts appearing in this manual are the properties of their respec-
tive holders.
Caution
To avoid damage to the system:
• Use the correct AC input voltage range.....
To reduce the risk of electric shock:
• Unplug the power cord before removing the system chassis
cover for installation or servicing. After installation or servicing,
cover the system chassis before plugging the power cord.

Battery:
• Danger of explosion if battery incorrectly replaced.
• Replace only with the same or equivalent type recommend by
the manufacturer.
• Dispose of used batteries according to the battery
manufacturer’s instructions.
Joystick or MIDI port:
• Do not use any joystick or MIDI device that requires more than
10A current at 5V DC. There is a risk of fire for devices that
exceed this limit.
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 try 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.

4
Introduction
1
80
83
91
94
Table of Contents
Chapter 1 - Introduction
1.1 Features and Specifications.................................................................................
1.2 Hyper-Threading Technology Functionality Requirements...
1.3 Package Checklist...........................................................................................................
Chapter 2 - Hardware Installation
2.1 System Board Layout ............................................................................................
2.2 System Memory.............................................................................................................
2.3 CPU..............................................................................................................................................
2.4 Jumper Settings...............................................................................................................
2.5 Rear Panel I/O Ports................................................................................................
2.6 I/O Connectors.............................................................................................................
Chapter 3 - BIOS Setup
3.1 Award BIOS Setup Utility....................................................................................
3.2 Updating the BIOS.....................................................................................................
Chapter 4 - Supported Softwares
4.1 Desktop Management Interface....................................................................
4.2 Drivers, Utilities and Software Applications....................................
4.3 3D Audio Configuration.........................................................................................
4.4 Installation Notes...........................................................................................................
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14
16
21
24
34

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1
Introduction
95
95
Appendix A - Enabling the Hyper-Threading
Technology
A.1 Enabling the Hyper-ThreadingTechnology.........................................
Appendix B - System Error Messages
B.1 POST Beep............................................................................................................................
B.2 Error Messages..................................................................................................................
Appendix C -Troubleshooting
C.1 Troubleshooting Checklist.................................................................................... 97
92

6
Introduction
1
1.1 Features and Specifications
1.1.1 Features
Chipset
• Intel®845PE chipset
- Intel®82845PE Memory Controller Hub (MCH)
- Intel®82801DB I/O Controller Hub (ICH4)
Processor
The system board is equipped with Socket 478 for installing one
of the following supported processors.
• Intel®Pentium®4 (Prescott and Northwood) processor up to
3.06GHz
- Intel Hyper-ThreadingTechnology
- FSB: 400MHz and 533MHz
• Intel®Celeron®processor
- 400MHz system data bus
System Memory
• Two 184-pin DDR SDRAM DIMM sockets
• Supports 2.5V unbuffered PC1600 (DDR200), PC2100
(DDR266) and PC2700 (DDR333) DDR SDRAM DIMM
• Supports maximum of 2GB system memory using 64Mbit,
128Mbit, 256Mbit or 512Mbit technology
- Double-sided x16 DDR SDRAM DIMM is not supported
Chapter 1 - Introduction
DensityWidth
Single/Double
184-pin DDR
64 Mbit
X8
SS/DS
64/128MB
X16
SS/DS
32MB/NA
Density 128 Mbit
X8
SS/DS
128/256MB
X16
SS/DS
64MB/NA
256 Mbit
X8
SS/DS
256/512MB
X16
SS/DS
128MB/NA
512 Mbit
X8
SS/DS
512/1024MB
X16
SS/DS
256MB/NA

7
1
Introduction
Expansion Slots
• 1 AGP slot
• 3 PCI slots
AGP
The AGP slot only supports 1.5V AGP 4x (1066MB/sec. band-
width) add-in cards. AGP is an interface designed to support high
performance 3D graphics cards for 3D graphics applications. It
handles large amounts of graphics data with the following fea-
tures:
• Pipelined memory read and write operations that hide
memory access latency.
• Demultiplexing of address and data on the bus for nearly 100
percent efficiency.
Onboard Audio Features
• 20-bit stereo full-duplex codec with independent variable sam-
pling rate
• High quality differential CD input
• True stereo line level outputs
• 6-channel audio output via software
6-Channel Audio Output via Software
The audio jacks at the rear panel will support 6-channel audio
only when the audio utility is configured to support this function.
The mic-in at the rear will be disabled. Use the front audio’s mic-
in jack.
Onboard LAN Features
• Uses Realtek RTL8101L fast ethernet controller
• Integrated IEEE 802.3, 10BASE-T and 100BASE-TX compatible
PHY
• 32-bit PCI master interface
• Integrated power management functions
• Full duplex support at both 10 and 100 Mbps
• Supports IEEE 802.3u auto-negotiation
• Supports wire for management

8
Introduction
1
PCI Bus Master IDE Controller
• Two PCI IDE interfaces support up to four IDE devices
• Supports ATA/33, ATA/66 and ATA/100 hard drives
• PIO Mode 4 Enhanced IDE (data transfer rate up to 14MB/
sec.)
• Bus mastering reduces CPU utilization during disk transfer
• Supports ATAPI CD-ROM, LS-120 and ZIP
IrDA Interface
The system board is equipped with an IrDA connector for wireless
connectivity between your computer and peripheral devices. The
IRDA (Infrared Data Association) specification supports data
transfers of 115K baud at a distance of 1 meter.
USB Ports
The system board supports USB 2.0 and USB 1.1 ports. USB 1.1
supports 12Mb/second bandwidth while USB 2.0 supports 480Mb/
second bandwidth providing a marked improvement in device
transfer speeds between your computer and a wide range of
simultaneously accessible external Plug and Play peripherals.
BIOS
• Award BIOS, Windows®98SE/2000/ME/XP Plug and Play
compatible
• Supports SCSI sequential boot-up
• Supports DMI 2.0 function
• 2Mbit flash memory
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.

9
1
Introduction
Compatibility
• PCI 2.2 and AC ’97 compliant
Rear Panel I/O Ports (PC 99 color-coded connectors)
• One mini-DIN-6 PS/2 mouse port
• One mini-DIN-6 PS/2 keyboard port
• One RJ45 LAN port
• Two USB 2.0/1.1 ports
• Two DB-9 serial ports
• One DB-25 parallel port
• One game/MIDI port
• Three audio jacks: line-out, line-in and mic-in
I/O Connectors
• Two connectors for 4 additional external USB 2.0/1.1 ports
• One front audio connector for external line-out and mic-in jacks
• One CD-in internal audio connector
• One connector for IrDA interface
• Two IDE connectors
• One floppy connector
• Two ATX power supply connectors
• Two fan connectors
1.1.2 Intelligence
Dual Function Power Button
Depending on the setting in the “Soft-Off By PWR-BTTN” field of
the Power Management Setup, this switch will allow the system to
enter the Soft-Off or Suspend mode.

10
Introduction
1
Wake-On-Ring
This feature allows the system that is in the Suspend mode or
Soft Power Off mode to wake-up/power-on to respond to calls
coming from an external modem or respond to calls from a
modem PCI card that uses the PCI PME (Power Management
Event) signal to remotely wake up the PC.
Important:
If you are using a modem add-in card, the 5VSB power source
of your power supply must support ≥ 720mA.
Wake-On-LAN
This feature allows the network to remotely wake up a Soft
Power Down (Soft-Off) PC. It is supported via the onboard LAN
port or via a PCI LAN card that uses the PCI PME (Power Man-
agement Event) signal. However, if your system is in the Suspend
mode, you can power-on the system only through an IRQ or
DMA interrupt.
Important:
The 5VSB power source of your power supply must support
≥ 720mA.
Wake-On-PS/2 Keyboard/Mouse
This function allows you to use the PS/2 keyboard or PS/2
mouse to power-on the system.
Important:
The 5VSB power source of your power supply must support
≥ 720mA.

11
1
Introduction
Wake-On-USB Keyboard/Mouse
The Wake-On-USB Keyboard/Mouse function allows you to use a
USB keyboard or USB mouse to wake up a system from the S3
(STR - Suspend To RAM) state.
Important:
• If you are using the Wake-On-USB Keyboard/Mouse func-
tion for 2 USB ports, the 5VSB power source of your power
supply must support ≥ 1.5A.
• If you are using the Wake-On-USB Keyboard/Mouse func-
tion for 3 or more USB ports, the 5VSB power source of
your power supply must support ≥ 2A.
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.
ACPI
The system board is designed to meet the ACPI (Advanced Con-
figuration and Power Interface) specification. ACPI has energy sav-
ing features that enables PCs to implement Power Management
and Plug-and-Play with operating systems that support OS Direct
Power Management. Currently, only Windows®®
®®
®98SE/2000/ME/XP
supports the ACPI function. ACPI when enabled in the Power
Management Setup will allow you to use the Suspend to RAM
function.
With the Suspend to RAM function enabled, you can power-off the
system at once by pressing the power button or selecting “Standby”
when you shut down Windows®®
®®
®98SE/2000/ME/XP without hav-
ing to go through the sometimes tiresome process of closing
files, applications and operating system. This is because the system
is capable of storing all programs and data files during the entire
operating session into RAM (Random Access Memory) when it
powers-off. The operating session will resume exactly where you
left off the next time you power-on the system.
Important:
The 5VSB power source of your power supply must support
≥ 1A.

12
Introduction
1
AC Power Failure Recovery
When power returns after an AC power failure, you may choose
to either power-on the system manually, let the system power-on
automatically or return to the state where you left off before
power failure occurs.
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.
1.2 Hyper-Threading Technology Functionality
Requirements
Enabling the functionality of Hyper-Threading Technology for your
computer system requires ALL of the following platforms.
Components:
• CPU - an Intel®Pentium®4 Processor with HT Technology
• Chipset - an Intel®chipset that supports HT Technology
• BIOS - a BIOS that supports HTTechnology and has it enabled
• OS - an operating system that includes optimizations for HT
Technology
Please refer to Appendix A for information about enabling the
functionality of the Hyper-Threading Technology. For more infor-
mation on Hyper-Threading Technology, go to: www.intel.com/
info/hyperthreading.
1.3 Package Checklist
The system board package contains the following items:
!The system board
!A user’s manual
!One IDE cable for ATA/33/66/100 IDE drives
!One 34-pin floppy disk drive cable
!One “Mainboard Utility” CD
If any of these items are missing or damaged, please contact your
dealer or sales representative for assistance.

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2
Hardware Installation
2.1 System Board Layout
Chapter 2 - Hardware Installation

14
2Hardware Installation
2.2 System Memory
Warning:
Electrostatic discharge (ESD) can damage your system board, proces-
sor, 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 system board is equipped with two 184-pin DDR SDRAM
DIMM (Dual In-line Memory Module) sockets that support 2.5V
DDR SDRAM DIMM. Double Data Rate SDRAM (DDR SDRAM)
is a type of SDRAM that doubles the data rate through reading
and writing at both the rising and falling edge of each clock. This
effectively doubles the speed of operation therefore doubling the
speed of data transfer.
Refer to chapter 1 (System Memory section) for detailed specifi-
cation of the memory supported by the system board.
BIOS Setting
Configure the system memory in the Advanced Chipset Features
submenu of the BIOS.
.
.
.
.
.
.
.
.
DDR 1
DDR 2

15
2
Hardware Installation
2.2.1 Installing the DIM Module
A DIM module simply snaps into a DIMM socket on the system
board. Pin 1 of the DIM module must correspond with Pin 1 of
the socket.
1. Pull the “tabs” which are at the ends of the socket to the
side.
2. Position the DIMM above the socket with the “notch” in the
module aligned with the “key” 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

16
2Hardware Installation
2.3 CPU
2.3.1 Overview
The system board is equipped with a surface mount 478-pin CPU
socket. This socket is exclusively designed for installing an Intel
processor.
2.3.2 Installing the CPU
1. Locate Socket 478 on the system board.
2. Unlock the socket by pushing the lever sideways, away from the
socket, then lifting it up to a 90oangle. Make sure the socket is
lifted to at least this angle otherwise the CPU will not fit in
properly.
Lever

17
2
Hardware Installation
3. Position the CPU above the socket then align the gold mark
on the corner of the CPU (designated as pin 1) with pin 1 of
the socket.
Important:
Handle the CPU by its edges and avoid touching the pins.
Gold mark
4. Insert the CPU into the socket until it is seated in place. The
CPU will fit in only one orientation and can easily be inserted
without exerting any force.
Important:
Do not force the CPU into the socket. Forcing the CPU into
the socket may bend the pins and damage the CPU.
Pin 1

18
2Hardware Installation
5. Once the CPU is in place, push down the lever to lock the
socket. The lever should click on the side tab to indicate that
the CPU is completely secured in the socket.
2.3.3 Installing the Fan and Heat Sink
The CPU must be kept cool by using a CPU fan with heatsink.
Without sufficient air circulation across the CPU and heat sink,
the CPU will overheat damaging both the CPU and system board.
Note:
•Only use Intel®certified fan and heat sink.
•An Intel®boxed processor package contains a retention
mechanism, heat sink, fan and installation guide. If the instal-
lation procedure in the installation guide differs from the one
in this section, please follow the installation guide in the
package.
•If you are installing a non-boxed processor, the heat sink, fan
and retention mechanism assembly may look different from
the one shown in this section but the procedure will more or
less be the same.

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2
Hardware Installation
1. The system board comes with the retention module base al-
ready installed.
Retention
module base
Retention
hole Retention hole
Retention
hole Retention hole
2. Position the fan / heat sink and retention mechanism assembly
on the CPU, then align and snap the retention legs’ hooks to
the retention holes at the 4 corners of the retention module
base.
Note:
You will not be able to snap the hooks into the holes if the
fan / heat sink and retention mechanism assembly did not
fit properly onto the CPU and retention module base.
Unsnapped
Fan / heat sink
and retention
mechanism
assembly
Snapped

20
2Hardware Installation
3. The retention levers at this time remains unlocked as shown
in the illustration below.
Retention lever
Retention lever
4. Move the retention levers to their opposite directions then
push them down. This will secure the fan / heat sink and re-
tention mechanism assembly to the retention module base.
Note:
You will not be able to push the lever down if the direction
is incorrect.
5. Connect the CPU fan’s cable connector to the CPU fan con-
nector on the system board.