-001 First release of the Intel® Desktop Board D845PEBT2 Product Guide September 2002
If an FCC declaration of conformity marking is present on the board, the following statement applies:
FCC Declaration of Conformity
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device
may not cause harmful interference, and (2) this device must accept any interference received, including interference that
may cause undesired operation.
For questions related to the EMC performance of this product, contact:
Intel Corporation
5200 N.E. Elam Young Parkway
Hillsboro, OR 97124
1-800-628-8686
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 in a residential
installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, 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 to an outlet on a circuit other than the one to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Canadian Department of Communications Compliance Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the
Radio Interference Regulations of the Canadian Department of Communications.
Le présent appareil numerique német pas de bruits radioélectriques dépassant les limites applicables aux appareils
numériques de la classe B prescrites dans le Réglement sur le broullage radioélectrique édicté par le ministére des
Communications du Canada.
Disclaimer
Information in this document is provided in connection with Intel® products. No license, express or implied, by estoppel or
otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel’s Terms and
Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied
warranty, relating to sale and/or use of Intel products including liability or warranties relating to fitness for a particular
purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not
intended for use in medical, life saving, or life sustaining applications. Intel may make changes to specifications and
product descriptions at any time, without notice.
Desktop Board D845PEBT2 may contain design defects or errors known as errata which may cause the product to deviate
from published specifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product
order.
Copies of documents which have an ordering number and are referenced in this document, or other Intel literature, may be
obtained from Intel Corporation by going to the World Wide Web site at: http://www.intel.com/ or by calling
1-800-548-4725.
Intel, Pentium, and Celeron are registered trademarks of Intel Corporation or its subsidiaries in the United States and other
countries.
†
Other names and brands may be claimed as the property of others.
Table 1 describes the major features of Intel® Desktop Board D845PEBT2.
Table 1. Feature Summary
Form Factor
Processor
Memory
Chipset
I/O Control
Audio
LAN
Expansion
Capabilities
ATX at 12.0 inches by 8.5 inches
Support for:
®
• Intel
Pentium® 4 processor in an mPGA-478 socket with 533/400 MHz front side
bus (FSB)
®
• Intel
Celeron® processor in an mPGA-478 socket with 400 MHz FSB
• Two 184-pin Double Data Rate (DDR) SDRAM Dual Inline Memory Modules (DIMMs)
with gold-plated contacts
• Support for DDR266 and DDR333 (see page 13 for details)
• Unbuffered and non-registered single or double-sided DIMMs
• Serial Presence Detect (SPD) memory only
• Non-ECC RAM (ECC memory will run in non-ECC mode)
• 2.5 V memory
• Support for up to 2 GB system memory
NOTE: Desktop Board D845PEBT2 has been designed to support DIMMs based on 512 Mbit
technology up to 2 GB, but this technology has not been validated on this Intel desktop
board. For more information about the latest list of tested memory, refer to the Intel
World Wide Web site at:
82845PE Memory Controller Hub (MCH) with Accelerated Hub Architecture
(AHA) bus
®
• Intel
82801DB I/O Controller Hub (ICH4) with support for up to six Hi-Speed
Universal Serial Bus 2.0 (USB 2.0) ports
• 4 Mbit Firmware Hub (FWH)
Support for SMSC LPC47M172 super I/O controller
• Intel 845PE chipset (AC ’97)
• Analog Devices Inc. audio codec
• SoundMAX
®
Intel
82562ET 10/100 Mbit/sec Platform LAN Connect (PLC) device and
†
Cadenza†
RJ-45 connector
• Five PCI bus add-in card connectors
• One AGP connector
continued
9
Intel Desktop Board D845PEBT2 Product Guide
Table 1. Feature Summary (continued)
Peripheral
Interfaces
BIOS
RAID
Power
Management
Hardware
Management
• Up to six USB 2.0 ports
— Four ports routed to the back panel
— Two ports routed to the front panel USB header
• Two IDE interfaces with Ultra DMA-33 and ATA-66/100 support
• Two Serial ATA (SATA) channels, one device per channel
• One diskette drive interface
• One parallel port
• One serial port
• Two 6-channel audio ports
• PS/2
• Intel/AMI BIOS
• 4 Mbit symmetrical flash memory
• Support for SMBIOS
• Intel
• Intel
Silicon Image Serial ATA RAID 0, 1
• Support for Advanced Configuration and Power Interface (ACPI)
• Suspend to RAM (STR) support
• Wake on USB, PCI, RS-232, PS/2, LAN, and front panel
Hardware monitor with:
• Three fan sensing inputs used to monitor fan activity
• Remote diode temperature sensing
• Intel
• Voltage sensing to detect out of range values
†
keyboard and mouse ports
®
Rapid BIOS Boot
®
Express BIOS Update
®
Precision Cooling Technology fan speed control that automatically adjusts
chassis fan speeds based on system temperature
NOTE
✏
For information about Intel desktop boards, including technical product specifications, BIOS
updates, and device drivers, go to the Intel World Wide Web site at:
Figure 1 shows the location of the major components on Desktop Board D845PEBT2.
Desktop Board Features
ABD
C
E
F
AA
Z
G
H
I
J
Y
X
KLMNOPQRSTUVW
OM14809
A Front panel audio header O Intel 82801DB (ICH4)
B CD-In connector (ATAPI) P Alternate power/sleep LED header
C AGP connector Q BIOS configuration jumper
D Back panel connectors R SCSI hard drive activity LED connector
E Rear chassis fan connector (fan speed control) S Speaker
F 12 V processor core voltage connector T Chassis intrusion connector
G Processor socket U Front chassis fan connector (fan speed control)
H Intel 82845PE (MCH) V Front panel header
I Processor fan connector W Front panel USB 2.0 header
J DIMM sockets X Primary Serial ATA connector
K Main power connector Y Secondary Serial ATA connector
L Secondary IDE connector Z Battery
M Diskette drive connector AA PCI bus add-in card connectors
N Primary IDE connector
Figure 1. Desktop Board Components
11
Intel Desktop Board D845PEBT2 Product Guide
Processor
CAUTION
Failure to use an ATX12V power supply, or not connecting the 12 V processor core voltage power
supply connector to Desktop Board D845PEBT2 may result in damage to the desktop board and/or
power supply.
Desktop Board D845PEBT2 supports a single Intel Pentium 4 processor or Intel Celeron
processor. Processors are not included with the desktop board and must be purchased separately.
The processor connects to the desktop board through the mPGA478-pin socket. The Intel
Pentium 4 processor and Intel Celeron processor may be removed and replaced to accommodate
supported higher speed processors.
Desktop Board D845PEBT2 supports the processors listed in Table 2.
Table 2. Supported Processors
Type
on .13 micron process in an
mPGA478 package
Intel Pentium 4 processor
on .18 micron process in an
mPGA478 package
®
Celeron
Intel
an mPGA478 package
®
processor in
For the latest information on processor support for Desktop Board D845PEBT2, refer to the Intel
World Wide Web site at:
For instructions on installing or upgrading the processor, see Chapter 2 on page 23.
Desktop Board D845PEBT2 requires an ATX12V compliant power supply to function according
to desktop board specifications. The desktop board has two ATX12V compliant power supply
connectors that are needed to provide extra power to the Intel 845PE chipset and Intel Pentium 4
processor or Intel Celeron processor.
Figure 13 on page 36 shows the two power connector locations.
12
Desktop Board Features
Main Memory
NOTE
✏
To be fully compliant with all applicable Intel® SDRAM memory specifications, the board should
be populated with DIMMs that support the Serial Presence Detect (SPD) data structure. If your
memory modules do not support SPD, you will see a notification to this effect on the screen at
power up. The BIOS will attempt to configure the memory controller for normal operation.
Desktop Board D845PEBT2 supports system memory as defined below:
• Up to two 184-pin Double Data Rate (DDR) SDRAM Dual Inline Memory Modules (DIMMs)
with gold-plated contacts. Supported memory configuration are:
DDR333: DDR333 memory will run at full speed when using an Intel Pentium 4
processor with 533 MHz front side bus frequency (FSB)
DDR333 memory will run only at DDR266 speeds when using an Intel Pentium 4
processor or Intel Celeron processor with 400 MHz FSB
DDR266: requires an Intel Pentium 4 processor with 533/400 MHz FSB, or Intel Celeron
processor with 400 MHz FSB
• Unbuffered and non-registered single or double-sided DIMMs
• Serial Presence Detect (SPD) memory only
• Non-ECC RAM (ECC memory will run in non-ECC mode)
• 2.5 V memory
• 64 Mbit, 128 Mbit, 256 Mbit, and 512 Mbit technologies for the following memory
Desktop Board D845PEBT2 has been designed to support DIMMs based on 512 Mbit technology
up to 2 GB, but this technology has not been validated on this Intel desktop board. For more
information about the latest list of tested memory, refer to the Intel World Wide Web site at:
All memory components and DIMMs used with the desktop board must comply with the
PC SDRAM specifications. You can access these documents through the World Wide Web at:
For information about installing memory, see Chapter 2 starting on page 23.
13
Intel Desktop Board D845PEBT2 Product Guide
Intel® 845PE Chipset
The Intel 845PE chipset consists of the following devices:
• Intel 82845PE Memory Controller Hub (MCH) with AHA bus
• Intel 82801DB I/O Controller Hub (ICH4) with AHA bus
• Firmware Hub (FWH)
Intel® 82845PE Memory Controller Hub (MCH)
The MCH provides the processor, system memory, AGP, and hub interfaces in the
Intel 845PE chipset platform. Features on Desktop Board D845PEBT2 include:
• Single processor support with 533 MHz or 400 MHz data transfer rates
• Support for up to 2 GB (with 512 Mbit technology) DDR SDRAM at 333/266 MHz operation
NOTE
✏
512 Mbit technology has not been validated on these boards
• 1.5 V AGP interface with 4X Side Band Addressing (SBA)/data transfer and 2X and
4X fast write
Intel® 82801DB I/O Controller Hub (ICH4)
The ICH4 integrates many I/O functions and provides the I/O subsystem with access to the rest of
the platform. ICH4 features on Desktop Board D845PEBT2 include:
• Integrated IDE controller supports two Ultra DMA-33 and ATA-66/100 channels, and
PIO modes
• SMBus interface
• FWH interface
• Low Pin Count (LPC) interface
• AC ’97 2.1 compliant link for audio and telephony codecs
• Integrated Intel 82562ET 10/100 Mbit/sec Platform LAN Connect (PLC) device for interfacing
the ICH4 LAN connect interface to LAN connect component
• Three UHCI and one EHCI compliant host controllers with support for up to six USB ports
Firmware Hub (FWH)
The 4 Mbit Firmware Hub has these features:
• System BIOS
• System security and management logic
14
Desktop Board Features
Input/Output (I/O) Controller
The SMSC LPC47M172 super I/O controllers feature the following:
• Low pin count (LPC) interface
• One serial port
• One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port
(EPP) support
• Serial IRQ interface compatible with serialized IRQ support for PCI systems
• PS/2-style mouse and keyboard interfaces
• Interface for one 1.2 MB, 1.44 MB, or 2.88 MB diskette drive
• Intelligent power management, including a programmable wake up event interface
• PCI power management support
Audio Subsystem
The audio subsystem includes the following:
• Intel 82801DB I/O Controller Hub (ICH4)
• Analog Devices Inc. AD1980B audio codec
• SoundMAX Cadenza
• Microphone input that supports either of the following:
One single dynamic, condenser, or electret microphone
Dual microphones for use with voice recognition software
The following connectors are included in the subsystem:
• Front panel analog audio connector that can be used as a connector for routing the following
signals to the front panel (see page 34 for more information). The connector/jumper block
includes pins for:
Front left/right out
Mic in
• Back panel analog audio connectors:
Front left/right out (6-channel) or line out (2-channel)
Center/Low Frequency Effects (LFE) out (6-channel)
Rear left/right out (6-channel)
Line in
Mic in
• Back panel digital audio (S/PDIF) connectors:
RCA
Toslink (optical)
• ATAPI-style CD-ROM connector
Audio drivers and utilities are available from Intel’s World Wide Web site:
The Intel 82562ET (with the Intel 82801DB ICH4) provides a Fast PCI LAN subsystem providing
both 10Base-T and 100Base-TX connectivity. The Intel 82562ET provides the following
functions:
• Basic 10/100 Ethernet LAN connectivity
• Supports RJ-45 connector with status indicator LEDs
• Programmable transit threshold
• Configurable EEPROM that contains the MAC address
LAN Subsystem Software
For LAN software and drivers, refer to the D845PEBT2 link on Intel’s World Wide Web site at:
Two LEDs are built into the RJ-45 LAN connector. Table 3 describes the LED states when the
board is powered up and the LAN subsystem is operating.
Table 3. RJ-45 LAN Connector LEDs
LED Color LED State Indicates
Off 10 Mbit/sec data rate is selected. Green
On 100 Mbit/sec data rate is selected.
Yellow
Off LAN link is not established.
On (steady state) LAN link is established.
On (brighter and pulsing) The computer is communicating with another computer on
the LAN.
Hi-Speed USB 2.0 Support
NOTE
✏
Computer systems that have an unshielded cable attached to a USB port might not meet FCC
Class B requirements, even if no device or a low-speed USB device is attached to the cable. Use a
shielded cable that meets the requirements for a full-speed USB device.
This desktop board supports up to six USB 2.0 ports via ICH4; four ports routed to the back panel
and two routed to a USB front panel header. The box contents include a two port USB adapter that
connects to the front panel header and mounts to an empty chassis slot (see page 35 for instructions
on how the install the USB 2.0 adapter). USB 2.0 ports are backward compatible with USB 1.1
devices. USB 1.1 devices will function normally at USB 1.1 speeds.
USB 2.0 support requires both an operating system and drivers that fully support USB 2.0 transfer
rates. Disabling Hi-Speed USB in BIOS reverts all USB 2.0 ports to USB 1.1 operation. This may
be required to accommodate operating systems that do not support USB 2.0.
16
Desktop Board Features
NOTE
✏
USB devices are limited to USB 1.1 transfer rates prior to operating system and driver
initialization.
Enhanced IDE Interface
The ICH4’s IDE interface handles the exchange of information between the processor and
†
peripheral devices like hard disks, CD-ROM drives, and Iomega Zip
The interface supports:
• Up to four IDE devices (such as hard drives)
• ATAPI devices (such as CD-ROM drives)
• Older PIO Mode devices
• Ultra DMA-33 and ATA-66/100 protocols
• Laser servo (LS-120) drives
drives inside the computer.
Serial ATA
The desktop board supports Serial ATA devices using the Silicon Image SiI3112 SATALink PCI
host controller.
NOTE
✏
Although the Silicon Image SiI3112 SATALink PCI Serial ATA controller on this product supports
up to 150 MB/sec transfer rate, some SATA devices are limited by the PCI bus to a maximum of
133 MB/sec.
The controller supports:
• 150 MB/sec transfer rate
• Up to two SATA devices
• PIO and DMA modes
• Support for RAID 0 (Striping) or RAID 1 (Mirroring)
Expansion Slots
Desktop Board D845PEBT2 has the following add-in card connectors:
• Five PCI bus add-in card connectors (SMBus routed to PCI bus connector 2)
• One AGP connector
17
Intel Desktop Board D845PEBT2 Product Guide
Accelerated Graphics Port (AGP)
NOTE
✏
Desktop Board D845PEBT2 is only compatible with 1.5 V AGP cards.
AGP is a high-performance interface for graphics-intensive applications, such as 3D graphics.
AGP is independent of the PCI bus and is intended for exclusive use with graphical
display devices.
The AGP connector supports 1.5 V AGP 4X and 2X add-in cards.
BIOS
The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI and IDE
auto-configuration utilities, and the video BIOS. The BIOS is stored in the Firmware Hub.
The BIOS can be updated by following the instructions in Chapter 3 on page 51.
PCI Auto Configuration
If you install a PCI add-in card in your computer, the PCI auto-configuration utility in the BIOS
automatically detects and configures the resources (IRQs, DMA channels, and I/O space) for that
add-in card. You do not need to run the BIOS Setup program after you install a PCI add-in card.
IDE Auto Configuration
If you install an IDE device (such as a hard drive) in your computer, the IDE auto-configuration
utility in the BIOS automatically detects and configures the device for your computer. You do not
need to run the BIOS Setup program after installing an IDE device. You can override the
auto-configuration options by specifying manual configuration in the BIOS Setup program.
To use ATA-66/100 features, the following items are required:
• An ATA-66/100 peripheral device
• An ATA-66/100 compatible cable
• ATA-66/100 operating system device drivers
Security Passwords
The BIOS includes security features that restrict whether the BIOS Setup program can be accessed
and who can boot the computer. A supervisor password and a user password can be set for the
Setup and for booting the computer, with the following restrictions:
• The supervisor password gives unrestricted access to view and change all Setup options. If
only the supervisor password is set, pressing <Enter> at the password prompt of Setup gives
the user restricted access to Setup.
18
Desktop Board Features
• If both the supervisor and user passwords are set, you must enter either the supervisor
password or the user password to access Setup. Setup options are then available for viewing
and changing depending on whether the supervisor or user password was entered.
• Setting a user password restricts who can boot the computer. The password prompt is
displayed before the computer is booted. If only the supervisor password is set, the computer
boots without asking for a password. If both passwords are set, you can enter either password
to boot the computer.
Power Management Features
Power management is implemented at several levels, including:
• Advanced Configuration and Power Interface (ACPI)
• Suspend to RAM (Instantly Available PC technology)
ACPI
ACPI gives the operating system direct control over the power management and Plug & Play
functions of a computer. The use of ACPI with Desktop Board D845PEBT2 requires an operating
system that provides full ACPI support.
Suspend to RAM (Instantly Available PC Technology)
CAUTION
For Instantly Available PC technology, the 5 V standby line for the power supply must be capable
of delivering adequate +5 V standby current. Failure to provide adequate standby current when
using this feature can damage the power supply and/or effect ACPI S3 sleep state functionality.
Instantly Available technology enables the board to enter the ACPI S3 (Suspend-to-RAM) sleep
state. While in the S3 sleep state, the computer will appear to be off. When signaled by a wake-up
device or event, the system quickly returns to its last known awake state.
The desktop board’s standby power indicator, shown in Figure 2, is lit when there is standby power
to the system. This includes the memory modules and PCI bus connectors, even when the
computer appears to be off.
If the system has a dual-colored power LED on the front panel, the sleep state is indicated by the
LED turning amber.
19
Intel Desktop Board D845PEBT2 Product Guide
CR3H1
OM14810
Figure 2. Location of Standby Power Indicator
CAUTION
Power supplies used with this board must be able to provide enough standby current to support the
standard Instantly Available (ACPI S3 sleep state) configuration. If the standby current necessary
to support multiple wake events from the PCI and/or USB buses exceeds power supply capacity,
the Intel desktop board may lose register settings stored in memory.
For more information on standby current requirements for this desktop board, refer to the
Technical Product Specification (TPS) by selecting the Technical Documentation link at:
http://developer.intel.com/design/motherbd/
Hardware Management
• Power connectors
• Fan connectors
• Fan speed control (Intel Precision Cooling Technology)
• Resume on Ring
• Wake from USB
• Wake from PS/2 keyboard/mouse
• PME# wakeup support
20
Desktop Board Features
Power Connectors
Desktop Board D845PEBT2 has two power connectors. See Figure 13 on page 36 for the location
of the power connectors.
Fan Connectors
Desktop Board D845PEBT2 has two chassis fan connectors (Intel Precision Cooling Technology)
and one processor fan connector. See Figure 13 on page 36 for the location of the fan connectors.
Fan Speed Control (Intel® Precision Cooling Technology)
Intel Precision Cooling Technology automatically adjusts the chassis fan speeds depending on the
system’s temperature. This feature reduces system fan noise by lowering the speed of the chassis
fans connected to the front and rear chassis fan connectors (J8H3 and J1B1). The processor fan
connector (J1F1) is not controlled.
The fan speed control feature can be disabled in the BIOS, resulting in the chassis fans always
operating at full speed. This feature should be disabled if a self-controlled fan is attached to a
chassis fan connector.
Overall system noise reduction will vary based on system configuration and environment.
Resume on Ring
The operation of Resume on Ring can be summarized as follows:
• Resumes operation from either ACPI S1 or ACPI S3 state
• Requires only one call to access the computer
• Detects incoming call similarly for external and internal modems
• Requires modem interrupt be unmasked for correct operation
Wake from USB
USB bus activity wakes the computer from an ACPI S1 or S3 state.
NOTE
✏
Wake from USB requires the use of a USB peripheral that supports Wake from USB.
Wake from PS/2 Keyboard/Mouse
PS/2 keyboard/mouse activity wakes the computer from an ACPI S1 or S3 state.
PME# Wakeup Support
When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S1, S3, or
S5 state.
21
Intel Desktop Board D845PEBT2 Product Guide
Speaker
A speaker is mounted on the desktop board. The speaker provides audible error code (beep code)
information during the Power-On Self-Test (POST).
Battery
A battery on the desktop board keeps the values in CMOS RAM and the clock current when the
computer is turned off. See Chapter 2 starting on page 23 for instructions on how to replace the
battery.
Real-Time Clock
Desktop Board D845PEBT2 has a time-of-day clock and 100-year calendar. A battery on the
desktop board keeps the clock current when the computer is turned off.
22
2 Installing and Replacing Desktop Board
Components
This chapter tells you how to:
• Install the I/O shield
• Install and remove the desktop board
• Install and remove a processor
• Install and remove memory
• Install and remove an AGP card
• Connect the IDE cable
• Connect the Serial ATA cable
• Connect the front panel header
• Connect front panel audio and USB solutions
• Connect fans and power cables
• Set the BIOS configuration jumper block
• Clear passwords
• Configure BIOS for SATA/SATA RAID
• Replace the battery
Before You Begin
WARNINGS
The procedures in this chapter assume familiarity with the general terminology associated with
personal computers and with the safety practices and regulatory compliance required for using
and modifying electronic equipment.
Disconnect the computer from its power source and from any telecommunications links,
networks, or modems before performing any of the procedures described in this chapter.
Failure to disconnect power, telecommunications links, networks, or modems before you open
the computer or perform any procedures can result in personal injury or equipment damage.
Some circuitry on the board can continue to operate even though the front panel power
button is off.
CAUTION
Before you install this board in a chassis, see Appendix B for regulatory requirements and
precautions.
• Always follow the steps in each procedure in the correct order.
• Set up a log to record information about your computer, such as model, serial numbers,
installed options, and configuration information.
• Electrostatic discharge (ESD) can damage components. Perform the procedures described in
this chapter only at an ESD workstation using an antistatic wrist strap and a conductive foam
pad. 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 computer chassis.
23
Intel Desktop Board D845PEBT2 Product Guide
Installing the I/O Shield
The desktop board comes with an I/O shield. When installed in the chassis, the shield blocks radio
frequency transmissions, protects internal components from dust and foreign objects, and promotes
correct airflow within the chassis.
Install the I/O shield before installing the desktop board in the chassis. Place the shield inside the
chassis as shown in Figure 3. Press the shield into place so that it fits tightly and securely. If the
shield doesn’t fit, obtain a properly-sized shield from the chassis supplier.
Figure 3. Installing the I/O Shield
OM14811
24
Installing and Replacing Desktop Board Components
Installing and Removing the Desktop Board
Refer to your chassis manual for instructions on installing and removing the desktop board.
WARNING
Only qualified technical personnel should do this procedure. Disconnect the computer from its
power source before performing the procedures described here. Failure to disconnect the power
before you open the computer can result in personal injury or equipment damage.
NOTES
✏
Refer to Appendix B for regulatory requirements and installation instructions and precautions.
Figure 4 shows the location of the eight mounting holes for Desktop Board D845PEBT2.
OM14812
Figure 4. Desktop Board Mounting Holes
25
Intel Desktop Board D845PEBT2 Product Guide
Installing and Removing a Processor
Instructions on how to install the processor to the desktop board are given below.
Installing a Processor
CAUTION
Before installing or removing the processor, make sure that AC power has been removed by
unplugging the power cord from the computer; the standby power LED should not be lit (see
Figure 2 on page 20). Failure to do so could damage the processor and the board.
To install a processor, follow these instructions:
1. Observe the precautions in “Before You Begin” on page 23.
2. Locate the processor socket and raise the socket lever completely.
3. Install the processor so that the corner with the triangle marking (A) is aligned with the corner
where the lever is attached to the socket (see Figure 5).
4. Lower the lever to its original position.
mPGA478B
mPGA478B
mPGA478B
A
OM12078
Figure 5. Installing a Processor
Installing the Processor Fan Heat Sink
Desktop Board D845PEBT2 has an integrated processor fan heat sink retention mechanism (RM).
For instructions on how to install the processor fan heat sink to the integrated processor fan heat
sink RM, refer to the boxed processor manual or the Intel World Wide Web site at:
Connect the processor fan heat sink cable to the processor fan connector (see Figure 6).
OM14813
Figure 6. Connecting the Processor Fan Heat Sink Cable to the Processor Fan Connector
Removing the Processor
For instruction on how to remove the processor fan heat sink and processor, refer to the processor
installation manual or the Intel World Wide Web site at:
To be fully compliant with all applicable Intel SDRAM memory specifications, the board requires
DIMMs that support the Serial Presence Detect (SPD) data structure.
You can access the PC Serial Presence Detect Specification at:
Desktop Board D845PEBT2 has two 184-pin DIMM sockets arranged as DIMM 0 and DIMM 1,
as shown in Figure 7. If installing a single DIMM, install it in DIMM 0.
Refer to the Main Memory heading on page 13 for memory requirements.
Installing DIMMs
CAUTION
Install memory in the DIMM sockets prior to installing the AGP video card to avoid interference
with the memory retention mechanism.
To install DIMMs, follow these steps:
1. Observe the precautions in “Before You Begin” on page 23.
2. Turn off all peripheral devices connected to the computer. Turn off the computer and
disconnect the AC power cord.
3. Remove the computer’s cover and locate the DIMM sockets (see Figure 7).
4. Remove the AGP video card if it interferes with the DIMM clips from being easily opened and
closed.
DIMM 1
DIMM 0
OM14803
Figure 7. Installing a Memory Module
28
Installing and Replacing Desktop Board Components
5. Make sure the clips at either end of the DIMM socket(s) are pushed outward to the
open position.
6. Holding the DIMM by the edges, remove it from its anti-static package.
7. Position the DIMM above the socket. Align the two small notches in the bottom edge of the
DIMM with the keys in the socket (see inset in Figure 7).
8. Insert the bottom edge of the DIMM into the socket.
9. When the DIMM is inserted, push down on the top edge of the DIMM until the retaining clips
snap into place. Make sure the clips are firmly in place.
10. Reinstall the AGP card if it was removed prior to installing the DIMMs.
11. Replace the computer’s cover and reconnect the AC power cord.
Removing DIMMs
To remove a memory module, follow these steps:
1. Observe the precautions in "Before You Begin" on page 23.
2. Turn off all peripheral devices connected to the computer. Turn off the computer.
3. Remove the AC power cord from the computer.
4. Remove the computer’s cover.
5. Remove the AGP card if it interferes with the DIMM clips from being easily opened
and closed.
6. Gently spread the retaining clips at each end of the DIMM socket. The DIMM pops out of
the socket.
7. Hold the DIMM by the edges, lift it away from the socket, and store it in an
anti-static package.
8. Reinstall the AGP card if you removed it before installing the DIMMs.
9. Reinstall and reconnect any parts you removed or disconnected to reach the DIMM sockets.
10. Replace the computer’s cover and reconnect the AC power cord.
29
Intel Desktop Board D845PEBT2 Product Guide
Installing and Removing an AGP Card
CAUTION
When installing any AGP card in the desktop board, ensure that it is fully seated in the AGP
connector before you power on the system. If the card is not fully seated in the AGP connector, an
electrical short may result across the AGP slot pins. Depending on the over-current protection of
the power supply, certain board components and/or traces may be damaged.
The AGP connector supports 1.5 V 4X and 2X AGP cards. The desktop board has an integrated
AGP card retention mechanism (RM).
Installing an AGP Card
Follow these instructions to install an AGP card:
1. Observe the precautions in "Before You Begin" on page 23.
2. Place the AGP card in the AGP connector.
3. Press down on the card until it is completely seated in the AGP connector and the card
retention notch snaps into place around the RM pin.
4. Secure the card’s metal bracket to the chassis back panel with a screw.
Removing the AGP Card
Follow these instructions to remove the AGP card from the RM:
1. Observe the precautions in "Before You Begin" on page 23.
2. Remove the screw (B) that secures the card’s metal bracket (A) to the chassis back panel.
3. Push back on the RM lever (D), as shown in Figure 8, until the retention pin (C) completely
clears the notch in the card.
4. Pull the card straight up (E).
B
A
E
C
D
OM10595
Figure 8. Removing the AGP Card
30
Installing and Replacing Desktop Board Components
Connecting the IDE Cable
The Intel® boxed desktop board package includes an IDE cable. The cable can connect two drives
to the desktop board. The cable supports the Ultra DMA-33 and ATA-66/100 transfer protocols.
Figure 9 shows the correct installation of the cable.
NOTE
✏
ATA-66/100 compatible cables are backward compatible with drives using slower IDE transfer
protocols. If an ATA-66/100 disk drive and a disk drive using any other IDE transfer protocol are
attached to the same cable, the maximum transfer rate between the drives may be reduced to that
of the slowest drive.
NOTE
✏
Do not connect an ATA device as a slave on the same IDE cable as an ATAPI master device. For
example, do not connect an ATA hard drive as a slave to an ATAPI CD-ROM drive.
For correct function of the cable:
1. Observe the precautions in "Before You Begin" on page 23.
2. Attach the cable end with the single connector to the desktop board (Figure 9, A).
3. Attach the cable end with the two closely spaced connectors to the drives (Figure 9, B).
A
B
OM14805
Figure 9. Connecting the IDE Cable
31
Intel Desktop Board D845PEBT2 Product Guide
Connecting the Serial ATA Cable
The Intel boxed desktop board package includes a Serial ATA (SATA) cable.
The cable (4-conductor) supports the Serial ATA protocol and connects a single drive to the
desktop board. Either end of the cable can be connected to the SATA drive or the connector on the
board.
For correct cable function:
1. Observe the precautions in “Before You Begin” on page 23.
2. Attach either cable end to the connector (A) on the board.
3. Attach either cable end to the connector (B) on the drive.
A
B
OM14823
Figure 10. Connecting the Serial ATA Cable
32
Installing and Replacing Desktop Board Components
Connecting Front Panel Headers
Figure 11 shows the location of the front panel headers.
1
3
5
A
7
9
1
3
5
B
7
2
4
6
8
10
C
2
4
6
10
9
8
6
4
2
7
5
3
1
D
Item Description Item Description
A Front panel audio C Front panel
B Front panel USB 2.0 D Alternate power/sleep LED
Figure 11. Front Panel Headers
OM14820
Connecting the Front Panel Header
Before connecting the front panel header, observe the precautions in “Before You Begin” on
page 23. Figure 11, C shows the location of the front panel header.
Table 4 shows the pin assignments for the front panel header.
Table 4. Front Panel Header (J8H2)
Pin Signal In/Out Description Pin Signal In/Out Description
Hard Drive Activity LED Power LED
1 HD_PWR Out Hard disk LED
pull-up (330 Ω) to
+5 V
3 HDA# Out Hard disk active LED 4 HDR_BLNK_YEL Out Front panel yellow
Reset Switch On/Off Switch
5 Ground Ground 6 SWITCH_ON# In Power switch
7 FP_RESET# In Reset switch 8 Ground Ground
9 +5 V Out Power 10 N/C Not connected
2 HDR_BLNK_GRN Out Front panel green
LED
LED
33
Intel Desktop Board D845PEBT2 Product Guide
Installing a Front Panel Audio Solution
Figure 11, A on page 33 shows the location of the front panel audio header.
Table 5 shows the pin assignments for the front panel audio header.
Table 5. Front Panel Audio Header Signal Names (J9B1)
Pin Signal Name Pin Signal Name
1 AUD-MIC 2 AUD-GND
3 AUD-MIC-BIAS 4 AUD-VCC
5 AUD-FPOUT-R 6 AUD-RET-R
7 HP-ON 8 KEY
9 AUD-FPOUT-L 10 AUD-RET-L
To install the cable that connects the front panel audio solution to the front panel audio header,
follow these steps:
1. Observe the precautions in “Before You Begin” on page 23.
2. Turn off all peripheral devices connected to the computer. Turn off the computer and
disconnect the AC power cord.
3. Remove the cover.
4. Locate the front panel audio header (J8A1), see Figure 11, A on page 33.
5. Remove the two jumpers from the header to disable the back panel audio connectors.
6. Install a correctly keyed and shielded front panel audio cable.
7. Connect the audio cable to the front panel audio solution.
8. Replace the cover.
To restore back panel operations, follow these steps:
1. Observe the precautions in “Before You Begin” on page 23.
2. Turn off all peripheral devices connected to the computer. Turn off the computer and
disconnect the AC power cord.
3. Remove the cover.
4. Remove the front panel audio cable.
5. Install a jumper on pins 5-6 (rear R channel).
6. Install a jumper on pins 9-10 (rear L channel).
7. Replace the cover.
34
Installing and Replacing Desktop Board Components
Installing the Rear Panel USB 2.0 Adapter
Follow these instructions to install the rear panel USB 2.0 adapter:
1. Observe the precautions in “Before You Begin” on page 23.
2. Attach the cable end with the connector to the front panel USB 2.0 header on the desktop
board.
3. Secure the cable’s metal bracket to the chassis back panel with a screw.
OM14822
Figure 12. Connecting the Rear Panel USB 2.0 Adapter
Table 6. Front Panel USB 2.0 Header (J8F1)
Pin Signal name Pin Signal name
1 VREG_FP_WSBPWR0 2 VREG_FP_USBPWR0
3 USB_FPP0- 4 USB_FPP1-
5 USB_FPP0+ 6 USB_FPP1+
7 Ground 8 Ground
9 Key 10 USB_FP_OC0
Note: USB ports may be assigned as needed.
35
Intel Desktop Board D845PEBT2 Product Guide
Connecting Fans and Power Cables
Figure 13 shows the location of the fans and power supply connectors.
1
Chassis rear
fan
12 V processor core
voltage connector
1
Processor
fan
1
Chassis front
fan
1
Main power
connector
1
OM14804
Figure 13. Location of Fans and Power Connectors
Connecting Fans
Connect the processor’s fan heat sink cable to the processor fan connector on the board. Connect
the chassis fan cables to the board fan connectors. See Figure 13 for fan locations.
Connecting Power Cables
CAUTION
Failure to use an ATX12V power supply, or not connecting the 12 V processor core power supply
connector to Desktop Board D845PEBT2 may result in damage to the desktop board and/or power
supply.
Figure 13 shows the location of the power connectors.
1. Observe the precautions in “Before You Begin” on 23.
2. Connect the 12 V processor core power supply cable to the 2x2 connector.
3. Connect the main power cable to the 2x10 connector.
36
Installing and Replacing Desktop Board Components
Setting the BIOS Configuration Jumper Block
CAUTION
Always turn off the power and unplug the power cord from the computer before changing the
jumper. Moving the jumper with the power on may result in unreliable computer operation.
The location of the desktop board’s BIOS configuration jumper is shown in Figure 14.
OM14807
3
1
J6H2
Figure 14. Location of the BIOS Configuration Jumper Block
The three-pin BIOS jumper block enables all board configurations to be done in BIOS Setup.
Table 7 shows the jumper settings for the Setup program modes.
Table 7. Jumper Settings for the BIOS Setup Program Modes (J6H2)
Jumper
Setting
3
1
3
1
3
1
Mode
Normal (default)
(1-2)
Configure
(2-3)
Recovery
(None)
Description
The BIOS uses the current configuration and passwords for booting.
After the Power-On Self-Test (POST) runs, the BIOS displays the
Maintenance Menu. Use this menu to clear passwords.
The BIOS recovers data from a recovery diskette in the event of a failed
BIOS update.
37
Intel Desktop Board D845PEBT2 Product Guide
Clearing Passwords
This procedure assumes that the board is installed in the computer and the configuration jumper
block is set to normal mode.
1. Observe the precautions in “Before You Begin” on page 23.
2. Turn off all peripheral devices connected to the computer. Turn off the computer. Disconnect
the computer’s power cord from the AC power source (wall outlet or power adapter).
3. Remove the computer cover.
4. Find the configuration jumper block (see Figure 14).
5. Place the jumper on pins 2-3 as shown below.
3
1
6. Replace the cover, plug in the computer, turn on the computer, and allow it to boot.
7. The computer starts the Setup program. Setup displays the maintenance menu.
8. Use the arrow keys to select Clear Passwords. Press <Enter> and Setup displays a pop-up
screen requesting that you confirm clearing the password. Select Yes and press <Enter>.
Setup displays the maintenance menu again.
9. Press <F10> to save the current values and exit Setup.
10. Turn off the computer. Disconnect the computer’s power cord from the AC power source.
11. Remove the computer cover.
12. To restore normal operation, place the jumper on pins 1-2 as shown below.
3
1
13. Replace the cover, plug in the computer, and turn on the computer.
38
Installing and Replacing Desktop Board Components
Configuring BIOS for Serial ATA
If the SATA drive(s) in the system is/are configured as secondary drive(s), then skip to the heading
Loading the SATA RAID or SATA Driver on page 45. To boot from an SATA drive, the Serial ATA Boot option (disabled by default) must be enabled in the BIOS Setup program. Follow the
steps below to enable the Serial ATA Boot option in the BIOS Setup program:
1. Press the <F2> key during Power-On Self-Test (POST) to enter the BIOS Setup program.
2. After entering the BIOS Setup program, go to the Boot Menu.
3. Enable the Serial ATA Boot option and press <F10> to save the BIOS settings and exit the
BIOS Setup program.
Configuring BIOS for Serial ATA RAID
NOTE
✏
To use the SATA RAID option, two SATA hard disk drives are required.
The Serial ATA RAID option is disabled by default in the BIOS Setup program. To boot from the
SATA RAID array, the Serial ATA Boot option must be enabled in the BIOS Setup program. To
access the RAID Configuration Utility, the Serial ATA RAID option must be enabled in BIOS.
Follow the steps below to enable the Serial ATA RAID option in the BIOS Setup program:
1. Press the <F2> key during Power-On Self-Test (POST) to enter the BIOS Setup program.
2. After entering the BIOS Setup program, move to the Boot menu.
3. Enable the Serial ATA RAID option.
4. Disable the Silent Boot option. The “splash” screen will not be displayed during POST and
will allow the user to see the option to enter the RAID Utility during POST.
5. After selecting the option, press <F10> to save the BIOS settings and exit the BIOS Setup
program.
39
Intel Desktop Board D845PEBT2 Product Guide
The RAID Configuration Utility
1. During POST, the following message will appear for a few seconds:
Press <Ctrl+S or F4> to enter RAID utility
NOTE
✏
If you are unable to see the message above because the “splash” screen is displayed, disable the
Silent Boot option in the BIOS Setup program. See the heading above, Configuring BIOS for
Serial ATA RAID, step 4.
When the message above appears on the screen, press the <Ctrl> and <S> keys simultaneously to
enter the RAID Configuration Utility.
After entering the RAID Configuration Utility, the drives will be listed on the screen as individual
drives, similar to the following screen image:
Create RAID set Press <Enter> to create RAID
Delete RAID set set
Rebuild Mirrored set
Resolve Conflicts
*0 PM Manufacturer Model XXXXXMB
1 SM Manufacturer Model XXXXXMB
6HOHFW0HQXESC Previous Menu
Enter Select
Ctrl-E Exit
* First HDD
2. Highlight the Create RAID set option using the up-down arrow keys and press <Enter>.
3. Choose which type of RAID set to create, Striped or Mirrored:
• If a Striped set (RAID 0) is required, proceed with the instructions in the next heading,
Creating a Striped Set (RAID 0).
• If a Mirrored set (RAID 1) is required, then go to the Creating a Mirrored Set (RAID 1)
heading.
40
Installing and Replacing Desktop Board Components
Creating a Striped Set (RAID 0)
NOTE
✏
If the drives are not identical in size, the total size of the Striped set will be twice the size of the
smallest drive.
Automatic Configuration
To automatically configure a Striped set, highlight the Auto Configuration option using the
up-down arrow keys and press <Enter>.
NOTE
✏
The Auto Configuration option will choose a 16K stripe size (also referred to as chunk size) and
assign the first drive as “0” (drive on the primary SATA channel) and the second drive as “1”
(drive on the secondary SATA channel). If you wish to select the striped size and/or the drive
assignment, choose the Manual Configuration option.
Manual Configuration
To manually configure a Striped set:
1. Highlight the Manual Configuration option using the up-down arrow keys and press <Enter>.
2. Highlight 0 PM or 1 SM to select the first drive and press <Enter>.
3. Press <Enter> again to confirm the second drive.
4. Highlight 4K, 8K, 16K, 32K, 64K, or 128K to choose the chunk size and press <Enter>.
NOTE
✏
The selected chunk size affects how the SATA RAID controller sends and receives block of data for
the hard disk drives. Users should perform their own testing to determine the optimal chunk size
for the applications they intend to use. Generally, larger chunk sizes are better when managing
larger data transfers with applications such as audio/video editing or graphics design. Smaller
chunk sizes are better when dealing with office applications such as e-mail.
5. Confirm the Striped set just created by pressing <Y>. Select <N> to go back to the beginning
to create the set.
41
Intel Desktop Board D845PEBT2 Product Guide
6. After confirming the Striped set, a summary of the Striped set will be displayed similar to the
following screen image:
Create RAID set Press <Enter> to create RAID
Delete RAID set set
Rebuild Mirrored set
Resolve Conflicts
*0 PM Manufacturer Model XXXXXMB
1 SM Manufacturer Model XXXXXMB
*Set0 SiI Striped Set PM XXXXXXMB
0 Manufacturer Model chunk size XXK
1 Manufacturer Model chunk size XXK
6HOHFW0HQXESC Previous Menu
Enter Select
Ctrl-E Exit
* First HDD
7. Press <Ctrl-E> to exit the RAID Configuration Utility.
8. Press <Y> to confirm exit and proceed with operating system setup.
Creating a Mirrored Set (RAID 1)
Automatic Configuration
To automatically configure a mirrored set, highlight the Auto Configuration option using the
up-down arrow keys and press <Enter>.
NOTE
✏
The Auto Configuration option will assign the drive “0” (drive on the primary SATA channel) as
the source drive and drive “1” (drive on the secondary SATA channel) as the target drive. If you
wish to select the drive assignments for the source and target drives, choose the Manual Configuration option.
42
Installing and Replacing Desktop Board Components
Manual Configuration
To manually configure a mirrored set:
1. Highlight the Manual Configuration option using the up-down arrow keys and press <Enter>.
2. Select the source drive by highlighting 0 PM or 1 SM and pressing <Enter>.
3. Press <Enter> again to confirm the target drive.
4. Select Disk Copy choice by highlighting <Yes> or <No> and press <Enter>:
• If the source drive does not contain data, then select <No>.
• If the source drive already has been partitioned and contains data, and the second drive has
been added for redundancy, then select <Yes>. The data on the source drive should be
copied to the target drive to ensure that the drives are identical. All subsequent data that is
stored to the source drive will be mirrored to the target drive as well.
5. If <Yes> was selected to enable Disk Copy, then select <onlinecopy> or <offlinecopy> and
press <Enter>:
• The <onlinecopy> option will copy the disk now, which may take some time.
• The <offlinecopy> option will copy the disk in the background.
6. Confirm the Mirrored set just created by pressing <Y>. Select <N> to go back to the
beginning to create the set.
7. After confirming the Mirrored set, a summary of the Mirrored set will be displayed, similar to
the following screen image:
Create RAID set Press <Enter> to create RAID
Delete RAID set set
Rebuild Mirrored set
Resolve Conflicts
*0 PM Manufacturer Model XXXXXMB
1 SM Manufacturer Model XXXXXMB
*Set0 SiI Mirrored Set PM XXXXXXMB
0 Manufacturer Model Current
1 Manufacturer Model Current
6HOHFW0HQXESC Previous Menu
Enter Select
Ctrl-E Exit
* First HDD
8. Press <Ctrl-E> to exit the RAID Configuration Utility.
9. Press <Y> to confirm exit and proceed with operating system setup.
43
Intel Desktop Board D845PEBT2 Product Guide
Deleting the RAID Set
To delete a RAID set, do the following:
1. From the RAID Configuration Utility, highlight the Delete RAID set option using the up-down
arrow keys and press <Enter>.
2. When Set0 appears, press <Enter>.
3. Confirm the deletion of the RAID by pressing <Y>.
Rebuilding the Mirrored Set
In the event that a drive failure, the Mirrored set will need to be rebuilt when the SATA drive is
replaced.
1. From the RAID Configuration Utility, highlight the Rebuild Mirrored set option using the
up-down arrow keys and press <Enter>.
2. Select <onlinerebuild> or <offlinerebuild> and press <Enter>:
• The <onlinerebuild> option will copy the disk now, which may take some time.
• The <offlinerebuild> option will copy the disk in the background.
3. Confirm the Mirrored set rebuild by pressing <Y>.
Resolving Conflicts
Resolving conflicts only applies to a Mirrored set configuration. If a drive failure occurs and the
replacement drive inserted into the system has been part of a RAID array in another system, it
could have conflicting drive connection information (Primary or Secondary Master/Slave). If
conflicting drive information exists on the replacement drive, the RAID set may be prevented from
being rebuilt or created. The old drive connection information must be overwritten with the new
connection information. To do so, highlight the Resolve Conflicts option from the RAID
Configuration Utility entrance screen using the up-down arrow keys and pressing <Enter>. This
will result in the new information being written to the replacement drive.
44
Installing and Replacing Desktop Board Components
Loading the SATA RAID or SATA Driver
Follow the steps below if the SATA drive is the primary drive in the system:
a) With Microsoft Windows
1. As Windows Setup begins, press <F6> to specify the SATA RAID or SATA driver.
2. Press <S> to specify an additional device.
3. Insert the floppy disk labeled SATA drivers and press <Enter>.
4. If RAID has been configured in BIOS, press <Enter> to select the Silicon Image Serial
ATA RAID Controller; if not, press <Enter> to select the Silicon Image SiI 3112 Serial
ATA Controller.
5. Press <Enter> to continue Windows Setup.
b) With Microsoft Windows 98 SE and Windows Me, do the following:
1. Perform full installation of Windows 98 SE or Windows Me.
2. Install the SATA RAID driver or SATA driver from the Intel Express Installer CD-ROM.
NOTE
✏
If the SATA drive in the system is configured as a secondary drive, the SATA and SATA RAID
drivers do not need to be installed prior to loading the operating system. After loading the
operating system on the primary drive in the system, the SATA RAID or SATA driver can be
installed from the Intel Express Installer CD-ROM.
†
2000 and Windows XP, do the following:
45
Intel Desktop Board D845PEBT2 Product Guide
Setting up the Audio Subsystem
After installing the SoundMAX Cadenza audio driver from the Intel Express Installer CD-ROM,
the multi-channel audio feature can now be enabled.
C E
A B D F G
Item Description
A S/PDIF digital line out
B S/PDIF optical line out
C Rear left/right out (6-channel audio)
D Center/Low Frequency Effects (LFE) out (multi-channel)
E Line in
F Line out (2-channel) or front left/right out (multi-channel)
G Mic in
Multi-Channel Analog Audio
Connect two speakers to the front left/right out (F) and two speakers to the rear left/right out (C)
for both 4- and 6-channel audio configurations. For 6-channel audio, connect two additional
speakers to the center LFE out (D).
Multi-Channel Digital Audio
Two types of S/PDIF connectors are available, RCA (A) and optical (B). Select the proper
connector according to the style of S/PDIF speakers that will be used.
46
Installing and Replacing Desktop Board Components
SoundMAX Control Panel
Click the SoundMAX tray icon from the bottom right of the screen.
Under the Listening Environment tab, select the proper layout from the Speaker Setup section:
• 4-channel setup, select the Quad Speakers (Multi-Drive Sound)
• 6-channel setup, select the Surround Sound Speakers (5.1 Sound)
After selecting the proper speaker configuration, test the multi-channel setup by clicking on the
Test button in the lower right corner of the SoundMAX control panel. Select the Play Test Noise
or Plat Test Music Loop. If any speaker fails to sound, check the cable connection for the speaker.
47
Intel Desktop Board D845PEBT2 Product Guide
Replacing the Battery
A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer
is not plugged into a wall socket, the battery has an estimated life of three years. When the
computer is plugged in, the standby current from the power supply extends the life of the battery.
The clock is accurate to ± 13 minutes/year at 25 ºC with 3.3 VSB applied.
When the voltage drops below a certain level, the BIOS Setup program settings stored in CMOS
RAM (for example, the date and time) might not be accurate. Replace the battery with an
equivalent one. Figure 15 on page 50 shows the location of the battery.
CAUTION
Risk of explosion if the battery is replaced with an incorrect type. Batteries should be recycled
where possible. Disposal of used batteries must be in accordance with local environmental
regulations.
PRECAUTION
Risque d'explosion si la pile usagée est remplacée par une pile de type incorrect. Les piles
usagées doivent être recyclées dans la mesure du possible. La mise au rebut des piles usagées doit
respecter les réglementations locales en vigueur en matière de protection de l'environnement.
(French)
FORHOLDSREGEL
Eksplosionsfare, hvis batteriet erstattes med et batteri af en forkert type. Batterier bør om muligt
genbruges. Bortskaffelse af brugte batterier bør foregå i overensstemmelse med gældende
miljølovgivning.
(Danish)
OBS!
Det kan oppstå eksplosjonsfare hvis batteriet skiftes ut med feil type. Brukte batterier bør kastes i
henhold til gjeldende miljølovgivning.
(Norwegian)
VIKTIGT!
Risk för explosion om batteriet ersätts med felaktig batterityp. Batterier ska kasseras enligt de
lokala miljövårdsbestämmelserna.
(Swedish)
VARO
Räjähdysvaara, jos pariston tyyppi on väärä. Paristot on kierrätettävä, jos se on mahdollista.
Käytetyt paristot on hävitettävä paikallisten ympäristömääräysten mukaisesti.
(Finnish)
48
Installing and Replacing Desktop Board Components
VORSICHT
Bei falschem Einsetzen einer neuen Batterie besteht Explosionsgefahr. Die Batterie darf nur durch
denselben oder einen entsprechenden, vom Hersteller empfohlenen Batterietyp ersetzt werden.
Entsorgen Sie verbrauchte Batterien den Anweisungen des Herstellers entsprechend.
(German)
AVVERTIMENTO
Esiste il pericolo di un esplosione se la pila non viene sostituita in modo corretto. Utilizzare solo
pile uguali o di tipo equivalente a quelle consigliate dal produttore. Per disfarsi delle pile usate,
seguire le istruzioni del produttore.
(Italian)
PRECAUCIÓN
Existe peligro de explosión si la pila no se cambia de forma adecuada. Utilice solamente pilas
iguales o del mismo tipo que las recomendadas por el fabricante del equipo. Para deshacerse de
las pilas usadas, siga igualmente las instrucciones del fabricante.
(Spanish)
WAARSCHUWING
Er bestaat ontploffingsgevaar als de batterij wordt vervangen door een onjuist type batterij.
Batterijen moeten zoveel mogelijk worden gerecycled. Houd u bij het weggooien van gebruikte
batterijen aan de plaatselijke milieuwetgeving.
(Dutch)
ATENÇÃO
Haverá risco de explosão se a bateria for substituída por um tipo de bateria incorreto. As baterias
devem ser recicladas nos locais apropriados. A eliminação de baterias usadas deve ser feita de
acordo com as regulamentações ambientais da região.
(Brazilian Portuguese)
49
Intel Desktop Board D845PEBT2 Product Guide
To replace the battery, follow these steps:
1. Observe the precautions in “Before You Begin” (see page 23).
2. Turn off all peripheral devices connected to the computer. Disconnect the computer’s power
cord from the AC power source (wall outlet or power adapter).
3. Remove the computer cover.
4. Locate the battery on the board (see Figure 15).
5. With a medium flat-bladed screwdriver, gently pry the battery free from its connector. Note
the orientation of the “+” and “-” on the battery.
6. Install the new battery in the connector, orienting the “+” and “-” correctly.
7. Replace the computer cover.
OM14815
Figure 15. Removing the Battery
50
3 Updating the BIOS
This chapter tells you how to update the BIOS by either using the Intel Express BIOS Update
®
utility or the Intel
Updating the BIOS with the Intel® Express BIOS Update
Utility
With the Intel Express BIOS Update utility you can update the system BIOS while in the Windows
environment. The BIOS file is included in an automated update utility that combines the
functionality of the Intel Flash Memory Update Utility and the ease-of use of Windows-based
installation wizards.
To update the BIOS with the Intel Express BIOS Update utility:
Flash Memory Update Utility, and how to recover the BIOS if an update fails.
2. Navigate to the Desktop Board D845PEBT2 page and click the Express BIOS Update utility
file for the Desktop Board D845PEBT2 BIOS.
3. Download the file to your hard drive. (You can also save this file to a diskette. This is useful
if you are updating the BIOS for multiple identical systems.)
4. Close all other applications. This step is required. Your system will be rebooted at the last
Express BIOS Update window.
5. Double-click the executable file from the location on your hard drive where it was saved. This
runs the update program.
6. Follow the instructions provided in the dialog boxes to complete the BIOS update.
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Intel Desktop Board D845PEBT2 Product Guide
Updating the BIOS with the Intel® Flash Memory Update
Utility
With the Intel Flash Memory Update Utility you can update the system BIOS from a floppy disk or
other bootable media. The utility available from the Web provides a simple method for creating a
bootable flash memory update floppy that will automatically update your BIOS.
Obtaining the BIOS Update File
You can update to a new version of the BIOS by using the BIOS update file. The BIOS update file
is a compressed self-extracting archive that contains all the files you need to update the BIOS. The
BIOS update file contains:
• New BIOS files
• BIOS recovery files
• Intel Flash Memory Update Utility
You can obtain the BIOS update file through your computer supplier or by navigating to the
Desktop Board D845PEBT2 page on the Intel World Wide Web site:
Please review the instructions distributed with the update utility before attempting a BIOS update.
The Intel Flash Memory Update Utility allows you to:
• Update the BIOS in flash memory
• Update the language section of the BIOS
Updating the BIOS
CAUTION
The AUTOEXEC.BAT file provided with the update files updates the BIOS. Do not interrupt the
process or the system may not function.
1. Boot the computer with the BIOS update diskette in drive A. During system boot, the
AUTOEXEC.BAT file provided with the update files will automatically run the BIOS update
process.
2. When the update process is complete, the monitor will display a message telling you to remove
the diskette and to reboot the system.
3. As the computer boots, check the BIOS identifier (version number) to make sure the update
was successful. If a logo appears, press
<Esc> to view the POST messages.
52
Updating the BIOS
Recovering the BIOS
It is unlikely that anything will interrupt the BIOS update; however, if an interruption occurs, the
BIOS could be damaged. The following steps explain how to recover the BIOS if an update fails.
The following procedure uses recovery mode for the Setup program. See page 37 for more
information on Setup modes.
NOTE
✏
Because of the small amount of code available in the boot block area, there is no video support.
You will not see anything on the screen during this procedure. Monitor the procedure by listening
to the speaker and looking at the diskette drive LED.
1. Turn off the computer, disconnect the computer’s power cord, and disconnect all external
peripherals.
2. Remove the computer cover and locate the configuration jumper block (see Figure 14).
3. Remove the jumper from all pins as shown below to set recovery mode for Setup.
3
1
4. Insert the bootable BIOS update diskette into diskette drive A.
5. Replace the computer cover, connect the power cord, turn on the computer, and allow it to
boot. The recovery process will take a few minutes.
6. Listen to the speaker:
• Upon applying power, drive A will begin to show activity. In about a minute, two beeps
are heard and drive A activity temporarily ceases indicating the successful recovery of the
BIOS core. Drive A activity will begin again followed by two more beeps indicating the
successful recovery of the boot block. This sequence of events indicates a successful
BIOS recovery.
• A series of continuous beeps indicates a failed BIOS recovery.
7. If recovery fails, return to step 1 and repeat the recovery process.
8. If recovery is successful, turn off the computer, and disconnect its power cord.
9. Remove the computer cover and continue with the following steps.
10. On the jumper block, reinstall the jumper back on pins 1-2 as shown below to set normal mode
for Setup.
3
1
11. Leave the update diskette in drive A, replace the computer cover, and connect the computer’s
power cord.
12. Turn on the computer and continue with the BIOS update.
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Intel Desktop Board D845PEBT2 Product Guide
54
4 Using the BIOS Setup Program
The BIOS Setup program can be used to view and change the BIOS settings for the computer. The
BIOS Setup program is accessed by pressing the <F2> key after the Power-On Self-Test (POST)
memory test begins and before the operating system boot begins.
NOTE
✏
The BIOS Setup menus described in this section may not show the latest settings. For the latest
BIOS settings, refer to the Intel World Wide Web site:
For reference purposes, you should write down the current Setup settings. When you make
changes to the settings, update this record.
NOTE
✏
The Setup menus described in this section apply to the desktop boards with BIOS identifier
BT84520A.86A. Boards with other BIOS identifiers might have differences in some of the
Setup menu screens.
The Setup screen menu bar is shown below.
Maintenance Main Advanced Security Power Boot Exit
Table 8 shows the BIOS Setup program menu bar.
Table 8. BIOS Setup Program Menu Bar
Maintenance Main Advanced Security Power Boot Exit
Clears passwords
and Boot Integrity
Service (BIS)*
credentials, and
configures
extended
configuration
memory settings
* For information about the BIS, refer to the Intel Web site at:
Configures
advanced
features
available
through the
chipset
Sets
passwords
and security
features
Configures
power
management
features
Selects boot
options and
power
supply
controls
Saves or
discards
changes to
set program
options
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Intel Desktop Board D845PEBT2 Product Guide
Table 9 shows the function keys available for menu screens.
Table 9. BIOS Setup Program Function Keys
BIOS Setup Program Function Key Description
<←> or <→> Selects a different menu screen
<↑> or <↓> Moves cursor up or down
<Tab> Moves cursor to the next field
<Enter> Executes command or selects the submenu
<F9> Load the default configuration values for the current menu
<F10> Save the current values and exits the BIOS Setup program
<Esc> Exits the menu
Maintenance Menu
Maintenance
Main Advanced Security Power Boot Exit
The menu shown in Table 10 is used to clear the Setup passwords. Setup only displays this menu
in configure mode. See page 37 for information about setting configure mode.
Table 10. Maintenance Menu
Feature Options Description
Clear All Passwords • Ok
• Cancel
Clear BIS Credentials • Ok
• Cancel
CPU Stepping
Signature
CPU Microcode
Update Revision
* For information about the BIS, refer to the Intel Web site at:
No options Displays processor’s Stepping Signature.
No options Displays processor’s Microcode Update Revision.
Clears both the user and supervisor passwords.
Clears the Wired for Management Boot Integrity Service (BIS)
credentials.
56
Main Menu
Using the BIOS Setup Program
Maintenance
Main
Advanced Security Power Boot Exit
Table 11 describes the Main Menu. This menu reports processor and memory information and is
used to configure the system date and system time.
Table 11. Main Menu
Feature Options Description
BIOS Version No options Displays the version of the BIOS.
Processor Type No options Displays processor type.
Processor Speed No options Displays processor speed.
System Bus Speed No options Displays the system bus speed.
System Memory Speed No options Displays the system memory speed.
Cache RAM No options Displays the size of second-level cache and whether it is
ECC-capable.
Total Memory No options Displays the total amount of RAM.
Memory Bank 0
Memory Bank 1
Language
System Time Hour, minute, and
System Date Day of week
No options Displays the amount and type of RAM in the
memory banks.
• English (default)
• Français
second
Month/day/year
Selects the current default language used by the BIOS.
Specifies the current time.
Specifies the current date.
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Intel Desktop Board D845PEBT2 Product Guide
Advanced Menu
Maintenance Main Advanced Security Power Boot Exit
PCI Configuration
Boot Configuration
Peripheral Configuration
IDE Configuration
Diskette Configuration
Event Log Configuration
Video Configuration
USB Configuration
Chipset Configuration
Table 12 describes the Advanced Menu. This menu is used to set advanced features that are
available through the chipset.
Table 12. Advanced Menu
Feature Options Description
PCI Configuration No options Configures individual PCI slot’s IRQ priority. When selected,
displays the PCI Configuration submenu.
Boot Configuration No options Configures Plug & Play and the Numlock key, and resets
configuration data. When selected, displays the Boot
Configuration submenu.
Peripheral Configuration No options Configures peripheral ports and devices. When selected,
displays the Peripheral Configuration submenu.
IDE Configuration No options Specifies type of connected IDE device.
Diskette Configuration No options Configures the floppy drive(s). When selected, displays the
Diskette Configuration submenu.
Event Log Configuration No options Configures event logging. When selected, displays the
Event Log Configuration submenu.
Video Configuration No options Configures video features. When selected, displays the
Video Configuration submenu.
USB Configuration No options Configures USB features. When selected, displays the USB
Configuration submenu.
Chipset Configuration No options Configures chipset features. When selected, displays the
Chipset Configuration submenu.
58
Using the BIOS Setup Program
PCI Configuration Submenu
Maintenance Main Advanced Security Power Boot Exit
The submenu shown in Table 13 is used to configure the IRQ priority of PCI slots individually.
Table 13. PCI Configuration Submenu
Feature Options Description
PCI Slot 1 IRQ Priority
PCI Slot 2 IRQ Priority
PCI Slot 3 IRQ Priority
PCI Slot 4 IRQ Priority
PCI Slot 5 IRQ Priority
PCI Configuration
• Auto (default)
• 3
• 4
• 5
• 7
• 9
• 10
• 11
• Auto (default)
• 3
• 4
• 5
• 7
• 9
• 10
• 11
• Auto (default)
• 3
• 4
• 5
• 7
• 9
• 10
• 11
• Auto (default)
• 3
• 4
• 5
• 7
• 9
• 10
• 11
• Auto (default)
• 3
• 4
• 5
• 7
• 9
• 10
• 11
Allows selection of IRQ priority.
Allows selection of IRQ priority and S5 wake.
Allows selection of IRQ priority.
Allows selection of IRQ priority.
Allows selection of IRQ priority.
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Intel Desktop Board D845PEBT2 Product Guide
Boot Configuration Submenu
Maintenance Main Advanced Security Power Boot Exit
Boot Configuration
The submenu shown in Table 14 is used to set the Plug & Play options and the power-on state of
the Numlock key.
Table 14. Boot Configuration Submenu
Feature Options Description
Plug & Play O/S • No (default)
• Yes
Numlock • Off
• On (default)
Specifies if manual configuration is desired.
No lets the BIOS configure all devices in the system. This
setting is appropriate when using a Plug and Play operating
system.
Yes lets the operating system configure Plug & Play (PnP)
devices not required for boot if your system has a Plug & Play
operating system. This option is available for use during lab
testing.
Specifies the power-on state of the Numlock feature on the
numeric keypad of the keyboard.
60
Peripheral Configuration Submenu
Maintenance Main Advanced Security Power Boot Exit
Peripheral Configuration
This submenu shown in Table 15 is used for configuring computer peripherals.
Table 15. Peripheral Configuration Submenu
Feature Options Description
Serial Port A • Disabled
• Enabled
• Auto (default)
Base I/O Address
(This feature is present
only when Serial Port A
is set to Enabled)
Interrupt
(This feature is present
only when Serial Port A
is set to Enabled)
Parallel Port • Disabled
Mode • Output only
Base I/O Address
(This feature is present
only when Parallel Port
is set to Enabled)
• 3F8 (default)
• 2F8
• 3E8
• 2E8
• IRQ 3
• IRQ 4 (default)
• Enabled
• Auto (default)
• Bi-directional
(default)
• EPP
• ECP
• 378 (default)
• 278
Configures serial port A.
Auto assigns the first free COM port, normally COM1, the
address 3F8h, and the interrupt IRQ4.
An * (asterisk) displayed next to an address indicates a
conflict with another device.
Specifies the base I/O address for serial port A, if serial
port A is Enabled.
Specifies the interrupt for serial port A, if serial port A is
Enabled.
Configures the parallel port.
Auto assigns LPT1 the address 378h and the
interrupt IRQ7.
An * (asterisk) displayed next to an address indicates a
conflict with another device.
Selects the mode for the parallel port. Not available if the
parallel port is disabled.
Output Only operates in AT
Bi-directional operates in PS/2-compatible mode.
EPP is Extended Parallel Port mode, a high-speed
bi-directional mode.
ECP is Enhanced Capabilities Port mode, a high-speed
bi-directional mode.
Specifies the base I/O address for the parallel port, if
Parallel Port is Enabled.
Interrupt
(This feature is present
only when Parallel Port
is set to Enabled)
Audio • Disabled
LAN Device
(This feature is present
only when there is
onboard LAN)
• IRQ 5
• IRQ 7 (default)
• Enabled
(default)
• Disabled
• Enabled
(default)
Specifies the interrupt for the parallel port, if Parallel Port is
Enabled.
Enables or disables the onboard audio subsystem.
Enables or disables the LAN device.
62
IDE Configuration Submenu
Maintenance Main Advanced Security Power Boot Exit
IDE Configuration
This submenu shown in Table 16 is used to configure IDE device options.
Table 16. IDE Configuration Submenu
Feature Options Description
IDE Controller • Disabled
• Primary
• Secondary
• Both (default)
PCI IDE Bus Master
Hard Disk Pre-Delay
Primary IDE Master No options Reports type of connected IDE device. When selected,
Primary IDE Slave No options Reports type of connected IDE device. When selected,
Secondary IDE
Master
Secondary IDE Slave No options Reports type of connected IDE device. When selected,
• Disabled
• Enabled (default)
• Disabled (default)
• 3 Seconds
• 6 Seconds
• 9 Seconds
• 12 Seconds
• 15 Seconds
• 21 Seconds
• 30 Seconds
No options Reports type of connected IDE device. When selected,
Specifies the integrated IDE controller.
Disabled disables the integrated IDE controller.
Primary enables only the primary IDE controller.
Secondary enables only the secondary IDE controller.
Both enables both IDE controllers.
Allows for a PCI device to initiate a transaction as a master.
Specifies the hard disk drive pre-delay. Causes the BIOS to
insert a delay before attempting to detect IDE drives in the
system.
displays the Primary IDE Master submenu.
displays the Primary IDE Slave submenu.
displays the Secondary IDE Master submenu.
displays the Secondary IDE Slave submenu.
Using the BIOS Setup Program
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Intel Desktop Board D845PEBT2 Product Guide
Primary/Secondary IDE Master/Slave Submenus
Maintenance Main Advanced Security Power Boot Exit
IDE Configuration
Primary IDE Slave
Secondary IDE Master
Secondary IDE Slave
There are four IDE submenus: Primary master, primary slave, secondary master, and secondary
slave. Table 17 shows the format of these IDE submenus. For brevity, only one example
is shown.
Table 17. Primary/Secondary IDE Master/Slave Submenus
Feature Options Description
Drive Installed None Displays the type of drive installed.
Type
Maximum Capacity None Displays the capacity of the drive.
LBA Large Mode
Control
Block Mode
PIO Mode
(Note)
• Auto (default)
• User
• Auto (default)
• Disabled
• Disabled
• 2 Sectors
• 4 Sectors
• 8 Sectors
• 16 Sectors (default)
• Auto (default)
• 0
• 1
• 2
• 3
• 4
Specifies the IDE configuration mode for IDE devices.
Auto fills-in capabilities from ATA/ATAPI device.
User allows capabilities to be changed.
Specifies LBA mode control.
Specifies number of sectors per block for transfers from
the hard disk drive to memory.
Check the hard disk drive’s specifications for optimum
setting.
Specifies the PIO mode.
Primary IDE Master
➜
continued
64
Using the BIOS Setup Program
Table 17. Primary/Secondary IDE Master/Slave Submenus (continued)
Feature Options Description
DMA Mode
• Auto (default)
• SWDMA 0
• SWDMA 1
• SWDMA 2
• MWDMA 0
• MWDMA 1
• MWDMA 2
• UDMA 0
• UDMA 1
• UDMA 2
• UDMA 3
• UDMA 4
• UDMA 5
Cable Detected
Note: These configuration options appear only if an IDE device is installed.
(Note)
None Displays the type of cable connected to the IDE
Specifies the Ultra DMA mode for the drive.
interface: 40-conductor or 80-conductor (for
ATA-66/100 devices).
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Intel Desktop Board D845PEBT2 Product Guide
Diskette Configuration Submenu
Maintenance Main Advanced Security Power Boot Exit
Diskette Configuration
This submenu shown in Table 18 is used to configure the floppy drive.
Table 18. Diskette Configuration Submenu
Feature Options Description
Diskette Controller • Disabled
• Enabled (default)
Floppy A • Disabled
• 360 KB 5¼”
• 1.2 MB 5¼”
• 720 KB 3½”
• 1.44 MB 3½” (default)
• 2.88 MB 3½”
Floppy Write Protect
• Disabled (default)
• Enabled
Configures the integrated floppy controller.
Selects the floppy drive type.
Disables or enables diskette drive write protection.
Event Log Configuration Submenu
Maintenance Main Advanced Security Power Boot Exit
The submenu shown in Table 19 is used to configure the event logging features.
Table 19. Event Log Configuration Submenu
Feature Options Description
Event Log No options Indicates if there is space available in the event log.
View Event Log [Enter] Views the contents of the DMI event log.
Clear Event Log No options Discards all events in the event log.
Event Logging • Disabled
Mark Events As Read [Enter] Marks all DMI events in the event log as read.
Event Log Configuration
Enabled allows logging of DMI events.
• Enabled (default)
66
Video Configuration Submenu
Maintenance Main Advanced Security Power Boot Exit
Video Configuration
The submenu shown in Table 20 is used to configure video features.
Table 20. Video Configuration Submenu
Feature Options Description
Graphics Aperture Size • 4MB
• 8MB
• 16MB
• 32MB
• 64MB (default)
• 128MB
• 256MB
Primary Video Adapter
• AGP (default)
• PCI
Amount of system memory available for direct access by
the graphics device.
Allows selecting and AGP or PCI video controller as the
display device that will be active when the system boots.
Using the BIOS Setup Program
USB Configuration Submenu
Maintenance Main Advanced Security Power Boot Exit
The menu shown in Table 21 is used to configure USB features.
Table 21. USB Configuration Submenu
Feature Options Description
High Speed USB • Disabled
Legacy USB Support • Disabled
USB Configuration
• Enabled (default)
• Enabled (default)
Disable this option when a USB 2.0 driver is not
available.
Enables support for legacy USB.
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Intel Desktop Board D845PEBT2 Product Guide
Chipset Configuration Submenu
Maintenance Main Advanced Security Power Boot Exit
Chipset Configuration
The menu shown in Table 22 is used to configure advanced chipset features.
Table 22. Chipset Configuration Submenu
Feature Options Description
ISA Enable Bit
PCI Latency Timer
Extended Configuration
SDRAM Frequency
SDRAM Timing Control
SDRAM RAS Act. To Pre. • 8
SDRAM CAS# Latency • 2.5
SDRAM RAS# to CAS#
delay
SDRAM RAS# Precharge • 4
• Enabled (default)
• Disabled
• 32 (default)
• 64
• 96
• 128
• 160
• 192
• 224
• 248
• Default (default)
• User Defined
• Auto (default)
• 200 MHz
• 266 MHz
• 333 MHz
• Auto (default)
• Manual – Aggressive
• Manual – User Defined
• 7
• 6
• 5
• Auto (default)
• 2
• Auto (default)
• 4
• 3
• 2
• Auto (default)
• 3
• 2
• Auto (default)
Some older expansion devices require this to be
enabled.
Set PCI latency time.
Chooses the default or user defined settings for
the extended configuration options.
Allows override of detected memory frequency
value.
Auto allows timings to be programmed according
to the memory detected.
Manual – Aggressive selects the most aggressive
user defined timings.
Manual – User Defined allows manual override of
detected SDRAM settings.
Selects length of time from read to pre-change.
Selects the number of clock cycles required to
address a column in memory.
Selects the number of clock cycles between
addressing a row and addressing a column.
Selects the length of time required before
accessing a new row.
68
Security Menu
Maintenance Main Advanced Security Power Boot Exit
The menu shown in Table 23 is used to set passwords and security features.
Table 23. Security Menu
If no password entered previously:
Feature Options Description
Supervisor Password Is No options Reports if there is a supervisor password set.
User Password Is No options Reports if there is a user password set.
Set Supervisor Password Password can be up to seven
alphanumeric characters.
Set User Password Password can be up to seven
alphanumeric characters.
Clear User Password
(Note 1)
User access Level
(Note 2)
Notes:
1. This feature appears only if a user password has been set.
2. This feature appears only if both a user password and a supervisor password have been set.
• Yes (default)
• No
• Limited
• No access
• View Only
• Full (default)
Specifies the supervisor password.
Specifies the user password.
Clears the user password.
Sets BIOS Setup Utility access rights for
user level.
Using the BIOS Setup Program
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Intel Desktop Board D845PEBT2 Product Guide
Power Menu
Maintenance Main Advanced Security Power Boot Exit
The menu shown in Table 24 is used to set power management features.
Table 24. Power Menu
Feature Options Description
ACPI No Options When selected, displays the ACPI submenu.
After Power Failure • Stay Off
• Last State(default)
• Power On
Wake on PCI PME
Wake on Modem Ring
• Stay Off (default)
• Power-On
• Stay Off (default)
• Power-On
Determines the mode of operation if a power loss
occurs.
Stay Off keeps the power off until the power button is
pressed.
Last State restores the previous power state before
power loss occurred.
Power On restores power to the computer.
Determines how the system responds to a PCI-PME
wake up event.
Specifies how the computer responds to a Modem
Ring wake up event on an installed modem.
ACPI Submenu
Maintenance Main Advanced Security Power Boot Exit
ACPI
The submenu represented in Table 25 is for setting the ACPI features.
Table 25. ACPI Submenu
Feature Options Description
ACPI Suspend Mode
Wake on LAN† from S5
• S1 State (default)
• S3 State
• Stay Off (default)
• Power On
Specifies the ACPI sleep state.
In ACPI soft-off mode only, determines how the
system responds to a LAN wake up event when the
system is in the ACPI soft-off mode.
70
Using the BIOS Setup Program
Boot Menu
Maintenance Main Advanced Security Power Boot Exit
The menu shown in Table 26 is used to set the boot features and the boot sequence.
Table 26. Boot Menu
Feature Options Description
Silent Boot • Disabled
• Enabled (default)
Intel Rapid BIOS Boot • Disabled
• Enabled (default)
Scan User Flash Area • Disabled
• Enabled (default)
PXE Boot to LAN
USB Boot • Disabled
Serial ATA Boot
Serial ATA RAID
Boot Device Priority No options Specifies the boot sequence from the available types of
Hard Disk Drives No options Specifies the boot sequence from the available hard
Removable Devices No options Specifies the boot sequence from the available removable
ATAPI CD-ROM Drives No options Specifies the boot sequence from the available ATAPI
• Disabled (default)
• Enabled
• Enabled (default)
• Disabled (default)
• Enabled
• Disabled (default)
• Enabled
Disabled displays normal POST messages.
Enabled displays OEM logo instead of POST messages.
Allows BIOS to skip certain tests while booting.
Enables the BIOS to scan the flash ROM for user binary
files that are executed at boot time.
Disables or enables PXE boot to LAN.
Disables or enables booting to USB boot devices.
Disables or enables booting to Serial ATA devices.
Disables or enables SATA RAID Configuration Utility.
boot devices.
disk drives.
devices.
CD-ROM drives.
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Intel Desktop Board D845PEBT2 Product Guide
Boot Device Priority Submenu
Maintenance Main Advanced Security Power Boot Exit
Boot Device Priority
The submenu represented in Table 27 is for setting boot devices priority.
Table 27. Boot Device Priority Submenu
Feature
1st Boot Device
nd
2
Boot Device
rd
3
Boot Device
Options Description
• Removable Device
• Hard Drive
• ATAPI CD-ROM
• Disabled
Specifies the boot sequence from the available devices. To specify
boot sequence:
1. Select the boot device with <↑> or <↓>.
2. Press <Enter> to set the selection as the intended boot device.
The operating system assigns a drive letter to each boot device in
the order listed. Changing the order of the devices changes the
drive lettering. The default settings for the first through final boot
devices are, respectively listed below. The BIOS supports up to
sixteen total boot devices in any combination of the boot device
types below, with respect to these maximums per type.
• Removable Device (maximum of four).
• Hard Drive (maximum of 12).
• ATAPI CD-ROM (maximum of four).
Hard Disk Drives Submenu
Maintenance Main Advanced Security Power Boot Exit
Hard Disk Drives
The submenu shown in Table 28 is for setting hard disk drives.
Table 28. Hard Disk Drives Submenu
Feature Options Description
1st Hard Disk Drive
(Note)
Note: This boot device submenu appears only if at least one boot device of this type is installed. This list will
display up to twelve hard disk drives, the maximum number of hard disk drives supported by the BIOS.
Dependent on installed
hard drives
Specifies the boot sequence from the available hard disk
drives. To specify boot sequence:
1. Select the boot device with <↑> or <↓>.
2. Press <Enter> to set the selection as the intended
boot device.
72
Using the BIOS Setup Program
Removable Devices Submenu
Maintenance Main Advanced Security Power Boot Exit
Removable Devices
The submenu in shown Table 29 is for setting removable devices.
Table 29. Removable Devices Submenu
Feature Options Description
1st Removable Device
(Note)
Note: This boot device submenu appears only if at least one boot device of this type is installed. This list will
display up to four removable devices, the maximum number of removable devices supported by the BIOS.
Dependent on installed
removable devices
Specifies the boot sequence from the available
removable devices. To specify boot sequence:
1. Select the boot device with <↑> or <↓>.
2. Press <Enter> to set the selection as the
intended boot device.
ATAPI CD-ROM Drives
Maintenance Main Advanced Security Power Boot Exit
ATAPI CD-ROM Drives
The submenu shown in Table 30 is for setting ATAPI CD-ROM drives.
Table 30. ATAPI CD-ROM Drives Submenu
Feature Options Description
1st ATAPI CD-ROM Drive
(Note)
Note: This boot device submenu appears only if at least one boot device of this type is installed. This list will display
up to four ATAPI CD-ROM drives, the maximum number of ATAPI CD-ROM drives supported by the BIOS.
Dependent on installed
ATAPI CD-ROM drives
Specifies the boot sequence from the available
ATAPI CD-ROM drives. To specify boot sequence:
1. Select the boot device with <↑> or <↓>.
2. Press <Enter> to set the selection as the
intended boot device.
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Intel Desktop Board D845PEBT2 Product Guide
Exit Menu
Maintenance Main Advanced Security Power Boot Exit
The menu shown in Table 31 is used to exit the BIOS Setup program, saving changes, and loading
and saving defaults.
Table 31. Exit Menu
Feature Description
Exit Saving Changes Exits and saves the changes in CMOS SRAM.
Exit Discarding Changes Exits without saving any changes made in the BIOS Setup program.
Load Optimal Defaults Loads optimal defaults.
Load Custom Defaults Loads the custom defaults for Setup options.
Save Custom Defaults Saves the current values as custom defaults. Normally, the BIOS reads the
Setup values from flash memory. If this memory is corrupted, the BIOS reads the
custom defaults. If no custom defaults are set, the BIOS reads the factory
defaults.
Discard Changes Discards changes without exiting Setup. The option values present when the
computer was turned on are used.
74
5 Technical Reference
Board Connectors
This chapter shows the location of the:
• Back panel connectors
• Audio connectors
• Add-in board and peripheral interface connectors
CAUTION
Many of the midboard and front panel connectors provide operating voltage (+5 V dc and
+12 V dc, for example) to devices inside the computer chassis, such as fans and internal
peripherals. These connectors are not overcurrent protected. Do not use these connectors for
powering devices external to the computer chassis. A fault in the load presented by the external
devices could cause damage to the computer, the interconnecting cable, and the external devices
themselves.
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Intel Desktop Board D845PEBT2 Product Guide
Back Panel Connectors
Figure 16 shows the back panel connectors.
A
C
B
Item Description Color
A PS/2 mouse port Green
B PS/2 keyboard port Purple
C USB 2.0 ports Black
D Parallel port Burgundy
E Serial port A Teal
F S/PDIF digital line out Light orange
G S/PDIF optical line out Black
H Audio rear left/right out (6-channel audio) Black
I Audio center/Low Frequency Effects (LFE) out
(6-channel audio)
J Mic in Pink
K Audio line out (2-channel) or front left/right out
(6-channel) audio
L Audio line in Light blue
M RJ-45 Black
N USB 2.0 ports Black
D
J
E
F
H
G
K
I
M
L
OM14825
Black
Lime green
N
Figure 16. Back Panel Connectors
NOTE
✏
The line out connector, located on the back panel, is designed to power either headphones or
amplified speakers only. Poor audio quality may occur if passive (non-amplified) speakers are
connected to this output.
76
Audio Connectors
Figure 17 shows the location of the audio connectors.
AB
Technical Reference
J9B1
2
4
6
10
1
2
3
4
J7A1
1
3
5
7
9
Item Description Color
A Front panel audio Black
B CD-ROM (ATAPI) Black
Figure 17. Audio Connectors
OM14817
Go to page 34 for instruction on how to install the front panel audio solution (Figure 11, A).
77
Intel Desktop Board D845PEBT2 Product Guide
Add-In Card and Peripheral Interface Connectors
Figure 18 shows the add-in card and peripheral interface connectors.
ABCDEF
GIH
OM14819
Item Description Item Description
A PCI bus connector 5 F AGP
B PCI bus connector 4 G Floppy drive
C PCI bus connector 3 H Primary IDE
D PCI bus connector 2 (SMBus routed) I Secondary IDE
E PCI bus connector 1
Figure 18. Add-in Card and Peripheral Interface Connectors
78
Desktop Board Resources
Memory Map
Table 32. System Memory Map
Address Range (decimal) Address Range (hex) Size Description
1024 K - 2097152 K 100000 - 7FFFFFF 2047 MB Extended Memory
960 K - 1024 K F0000 - FFFFF 64 KB Runtime BIOS
896 K - 960 K E0000 - EFFFF 64 KB Reserved
800 K - 896 K C8000 - DFFFF 96 KB Available high DOS memory (open to the
640 K - 800 K A0000 - C7FFF 160 KB Video memory and BIOS
639 K - 640 K 9FC00 - 9FFFF 1 KB Extended BIOS data (movable by
512 K - 639 K 80000 - 9FBFF 127 KB Extended conventional memory
0 K - 512 K 00000 - 7FFFF 512 KB Conventional memory
Technical Reference
PCI bus)
memory manager software)
DMA Channels
Table 33. DMA Channels
DMA Channel Number Data Width System Resource
0 8 or 16 bits
1 8 or 16 bits Parallel port
2 8 or 16 bits Floppy drive
3 8 or 16 bits Parallel port (for ECP or EPP)
4 8 or 16 bits DMA controller
5 16 bits Open
6 16 bits Open
7 16 bits Open
79
Intel Desktop Board D845PEBT2 Product Guide
Interrupts
Table 34. Interrupts
IRQ System Resource
NMI I/O channel check
0 Reserved, interval timer
1 Reserved, keyboard buffer full
2 Reserved, cascade interrupt from slave PIC
3 **
4 COM1*
5 LPT2 (Plug and Play option) / **
6 Floppy drive controller
7 LPT1*
8 Real time clock
9 **
10 **
11 **
12 Onboard mouse port (if present, else user available)
13 Reserved, math coprocessor
14 Primary IDE (if present, else user available)
15 Secondary IDE (if present, else user available)
* Default, but can be changed to another IRQ.
** Dynamically allocated for all PCI/AGP devices and slots.
80
A Error Messages and Indicators
Desktop Board D845PEBT2 reports POST errors in two ways:
• By sounding a beep code
• By displaying an error message on the monitor
BIOS Beep Codes
The BIOS beep codes are listed in Table 35. The BIOS also issues a beep code (one long tone
followed by two short tones) during POST if the video configuration fails (a faulty video card or
no card installed) or if an external ROM module does not properly checksum to zero.
Table 35. Beep Codes
Number of Beeps Description
1 Refresh failure
2 Parity cannot be reset
3 First 64 K memory failure
4 Timer not operational
5 Processor failure (Reserved; not used)
6 8042 GateA20 cannot be toggled (memory failure or not present)
7 Exception interrupt error
8 Display memory R/W error
9 (Reserved; not used)
10 CMOS Shutdown register test error
11 Invalid BIOS (such as, POST module not found)
81
Intel Desktop Board D845PEBT2 Product Guide
BIOS Error Messages
When a recoverable error occurs during the POST, the BIOS displays an error message describing
the problem.
Table 36. BIOS Error Messages
Error Message Explanation
GA20 Error An error occurred with Gate-A20 when switching to protected
mode during the memory test.
Pri Master HDD Error
Pri Slave HDD Error
Sec Master HDD Error
Sec Slave HDD Error
Limits and methods of measurement of Radio Disturbance Characteristics
of Information Technology Equipment. (International)
and Methods of Measurement. (International)
85
Intel Desktop Board D845PEBT2 Product Guide
Product Certification Markings
Desktop Board D845PEBT2 has the following product certification markings:
• UL joint US/Canada Recognized Component mark: consists of small c followed by a stylized
backward UR and followed by a small US. Includes adjacent UL file number for Intel desktop
boards: E210882 (component side).
• FCC Declaration of Conformity logo mark for Class B equipment; includes Intel name and
model designation (solder side).
• CE mark: declaring compliance to European Union (EU) EMC directive (89/336/EEC) and
Low Voltage directive (73/23/EEC) (component side).
• Australian Communications Authority (ACA) C-Tick mark: consists of a stylized C overlaid
with a check (tick) mark (component side), followed by Intel supplier code number, N-232.
• Printed wiring board manufacturer’s recognition mark: consists of a unique UL recognized
manufacturer’s logo, along with a flammability rating (94V-0) (solder side).
• Battery “+ Side Up” marking: located on the component side of the board in close proximity
to the battery holder.
• Korean MIC logo mark: denotes Korean EMC certification (component side). Additional
certification information is provided below:
1. Product Name (model)
2. Certificate ID
3. Applicant: Intel Korea Ltd.
4. Date of manufacture as separate marking on product
5. Manufacturer (country of origin)
Korean MIC logo mark for Desktop Board D845PEBT2
86
Regulatory Compliance
Installation Precautions
When you install and test the desktop board, observe all warnings and cautions in the installation
instructions.
To avoid injury, be careful of:
• Sharp pins on connectors
• Sharp pins on printed circuit assemblies
• Rough edges and sharp corners on the chassis
• Hot components (like processors, voltage regulators, and heat sinks)
• Damage to wires that could cause a short circuit
Observe all warnings and cautions that instruct you to refer computer servicing to qualified
technical personnel.
Installation Instructions
CAUTION
Follow these guidelines to meet safety and regulatory requirements when installing this board
assembly.
Read and adhere to all of these instructions and the instructions supplied with the chassis and
associated modules. If the instructions for the chassis are inconsistent with these instructions or
the instructions for associated modules, contact the supplier’s technical support to find out how
you can ensure that your computer meets safety and regulatory requirements. If you do not follow
these instructions and the instructions provided by chassis and module suppliers, you increase
safety risk and the possibility of noncompliance with regional laws and regulations.
Before computer integration, make sure that the power supply and other modules or peripherals, as
applicable, have passed Class B EMC testing and are marked accordingly.
In the installation instructions for the host chassis, power supply, and other modules pay close
attention to the following:
• Product certifications or lack of certifications
• External I/O cable shielding and filtering
• Mounting, grounding, and bonding requirements
• Keying connectors when mating the wrong connectors could be hazardous
If the power supply and other modules or peripherals, as applicable, are not Class B EMC
compliant before integration, then EMC testing is required on a representative sample of the newly
completed computer.
87
Intel Desktop Board D845PEBT2 Product Guide
Chassis and Component Certifications
Ensure that the chassis and certain components; such as the power supply, peripheral drives,
wiring, and cables; are components certified for the country or market where used. Agency
certification marks on the product are proof of certification. Typical product certifications include:
In Europe
The CE marking signifies compliance with all applicable European requirements. If the chassis
and other components are not properly CE marked, a supplier’s Declaration of Conformity
statement to the European EMC directive and Low Voltage directive (as applicable), should be
obtained. Additionally, other directives, such as the Radio and Telecommunications Terminal
Equipment (R&TTE) directive may also apply depending on product features.
In the United States
A certification mark by a Nationally Recognized Testing Laboratory (NRTL) such as UL, CSA, or
ETL signifies compliance with safety requirements. Wiring and cables must also be UL listed or
recognized and suitable for the intended use. The FCC Class B logo for home or office use
signifies compliance with electromagnetic interference (EMI) requirements.
In Canada
A nationally recognized certification mark such as CSA or cUL signifies compliance with safety
requirements. The Industry Canada statement at the front of this product guide demonstrates
compliance with Canadian EMC regulations. Industry Canada recognizes and accepts FCC
certification as denoting compliance with national electromagnetic interference (emissions)
requirements.
Prevent Power Supply Overload
Do not overload the power supply output. To avoid overloading the power supply, make sure that
the calculated total current loads of all the modules within the computer is less than the output
current rating of each of the power supplies output circuits.
Place Battery Marking
There is insufficient space on this desktop board to provide instructions for replacing and
disposing of the Lithium ion coin cell battery. For system safety certification, the following
statement or equivalent statement is required to be permanently and legibly marked on the chassis
near the battery.
CAUTION
Risk of explosion if battery is incorrectly replaced.
Replace with only the same or equivalent type recommended by the manufacturer. Dispose of used
batteries according to the manufacturer’s instructions.
Use Only for Intended Applications
All Intel desktop processor boards are evaluated as Information Technology Equipment (I.T.E.) for
use in personal computers for installation in homes, offices, schools, computer rooms, and similar
locations. The suitability of this product for other applications or environments, such as medical,
industrial, alarm systems, test equipment, etc. may require further evaluation.
88
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