Intel D865PCK User manual

February 2005
Order Number: C99878-001
The Intel®Desktop Board D865PCK may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current
characterized errata are documented in the Intel Desktop Board D865PCK Specification Update.
Intel®Desktop Board
D865PCK
Technical Product Specification

Revision History
Revision Revision History Date
-001 First release of the Intel®Desktop Board D865PCK Technical Product
Specification. February 2005
This product specification applies to only standard Intel®Desktop Board D865PCK with BIOS
identifier CK86510J.86A.
Changes to this specification will be published in the Intel Desktop Board D865PCK Specification
Update before being incorporated into a revision of this document.
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Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising
from future changes to them.
Intel®desktop boards 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 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
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Copyright ©2005, Intel Corporation. All Rights Reserved.

iii
Preface
This Technical Product Specification (TPS) specifies the board layout, components, connectors,
power and environmental requirements, and the BIOS for the Intel®Desktop Board D865PCK. It
describes the standard product and available manufacturing options.
Intended Audience
The TPS is intended to provide detailed, technical information about the Desktop Board D865PCK
and its components to the vendors, system integrators, and other engineers and technicians who
need this level of information. It is specifically not intended for general audiences.
What This Document Contains
Chapter Description
1 A description of the hardware used on the Desktop Board D865PCK
2 A map of the resources of the Desktop Board
3 The features supported by the BIOS Setup program
4 The contents of the BIOS Setup program’s menus and submenus
5 A description of the BIOS error messages, beep codes, and POST codes
Typographical Conventions
This section contains information about the conventions used in this specification. Not all of these
symbols and abbreviations appear in all specifications of this type.
Notes, Cautions, and Warnings

NOTE
Notes call attention to important information.
#
INTEGRATOR’S NOTES
Integrator’s notes are used to call attention to information that may be useful to system integrators.
CAUTION
Cautions are included to help you avoid damaging hardware or losing data.
WARNING
Warnings indicate conditions, which if not observed, can cause personal injury.

Intel Desktop Board D865PCK Technical Product Specification
iv
Other Common Notation
# Used after a signal name to identify an active-low signal (such as USBP0#)
(NxnX) When used in the description of a component, N indicates component type, xn are the relative
coordinates of its location on the Desktop Board D865PCK, and X is the instance of the
particular part at that general location. For example, J5J1 is a connector, located at 5J. It is
the first connector in the 5J area.
GB Gigabyte (1,073,741,824 bytes)
GB/sec Gigabytes per second
KB Kilobyte (1024 bytes)
Kbit Kilobit (1024 bits)
kbits/sec 1000 bits per second
MB Megabyte (1,048,576 bytes)
MB/sec Megabytes per second
Mbit Megabit (1,048,576 bits)
Mbit/sec Megabits per second
xxh An address or data value ending with a lowercase h indicates a hexadecimal value.
x.x V Volts. Voltages are DC unless otherwise specified.
* This symbol is used to indicate third-party brands and names that are the property of their
respective owners.

v
Contents
1Product Description
1.1 Overview......................................................................................................................10
1.1.1 Feature Summary..........................................................................................10
1.1.2 Board Layout.................................................................................................11
1.1.3 Block Diagram...............................................................................................12
1.2 Online Support.............................................................................................................13
1.3 Processor.....................................................................................................................13
1.4 System Memory...........................................................................................................14
1.4.1 Memory Configurations .................................................................................16
1.5 Intel®865P Chipset......................................................................................................18
1.5.1 Universal 0.8 V / 1.5 V AGP 3.0 Connector...................................................18
1.5.2 USB...............................................................................................................19
1.5.3 IDE Support...................................................................................................20
1.5.4 Real-Time Clock, CMOS SRAM, and Battery................................................20
1.6 I/O Controller................................................................................................................20
1.6.1 Serial Port......................................................................................................21
1.6.2 Parallel Port...................................................................................................21
1.6.3 Diskette Drive Controller................................................................................21
1.6.4 Keyboard and Mouse Interface .....................................................................21
1.7 Audio Subsystem.........................................................................................................22
1.7.1 Realtek ALC202-based Audio Subsystem ....................................................22
1.7.2 Audio Connectors..........................................................................................22
1.7.3 Audio Subsystem Software ...........................................................................23
1.8 LAN Subsystem ...........................................................................................................23
1.8.1 Intel®82562EZ Physical Layer Interface Device...........................................23
1.8.2 RJ-45 LAN Connector with Integrated LEDs.................................................24
1.8.3 LAN Subsystem Software..............................................................................24
1.9 Chassis Intrusion and Detection ..................................................................................24
1.10 Power Management.....................................................................................................24
1.10.1 ACPI..............................................................................................................25
1.10.2 Hardware Support .........................................................................................27
2Technical Reference
2.1 Introduction ..................................................................................................................31
2.2 Memory Map................................................................................................................31
2.3 DMA Channels.............................................................................................................32
2.4 Fixed I/O Map...............................................................................................................32
2.5 PCI Configuration Space Map......................................................................................33
2.6 Interrupts......................................................................................................................34
2.7 PCI Interrupt Routing Map ...........................................................................................35
2.8 Connectors...................................................................................................................37
2.8.1 Back Panel Connectors.................................................................................38
2.8.2 Internal I/O Connectors .................................................................................39
2.8.3 External I/O Connectors................................................................................46

Intel Desktop Board D865PCK Technical Product Specification
vi
2.9 Jumper Blocks..............................................................................................................50
2.9.1 Front Panel Audio Connector/Jumper Block .................................................50
2.9.2 BIOS Setup Configuration Jumper Block ......................................................51
2.10 Mechanical Considerations..........................................................................................52
2.10.1 Form Factor...................................................................................................52
2.10.2 I/O Shield.......................................................................................................53
2.11 Electrical Considerations..............................................................................................54
2.11.1 DC Loading....................................................................................................54
2.11.2 Add-in Board Considerations.........................................................................54
2.11.3 Fan Connector Current Capability.................................................................54
2.11.4 Power Supply Considerations .......................................................................55
2.12 Thermal Considerations...............................................................................................55
2.13 Reliability......................................................................................................................57
2.14 Environmental..............................................................................................................58
2.15 Regulatory Compliance................................................................................................59
2.15.1 Safety Regulations ........................................................................................59
2.15.2 EMC Regulations...........................................................................................59
2.15.3 European Union Declaration of Conformity Statement..................................60
2.15.4 Product Ecology Statements.........................................................................61
2.15.5 Product Certification Markings (Board Level)................................................62
3Overview of BIOS Features
3.1 Introduction ..................................................................................................................63
3.2 BIOS Flash Memory Organization ...............................................................................64
3.3 Resource Configuration ...............................................................................................64
3.3.1 PCI Autoconfiguration....................................................................................64
3.3.2 PCI IDE Support............................................................................................64
3.4 System Management BIOS (SMBIOS) ........................................................................65
3.5 Legacy USB Support....................................................................................................65
3.6 BIOS Updates..............................................................................................................66
3.6.1 Language Support.........................................................................................66
3.6.2 Custom Splash Screen..................................................................................66
3.7 Boot Options ................................................................................................................67
3.7.1 CD-ROM Boot ...............................................................................................67
3.7.2 Network Boot.................................................................................................67
3.7.3 Booting Without Attached Devices................................................................67
3.7.4 Changing the Default Boot Device During POST..........................................67
3.8 Fast Booting Systems with Intel®Rapid BIOS Boot.....................................................68
3.8.1 Peripheral Selection and Configuration.........................................................68
3.8.2 Intel Rapid BIOS Boot ...................................................................................68
3.9 BIOS Security Features ...............................................................................................69
4Error Messages and Beep Codes
4.1 Speaker .......................................................................................................................71
4.2 BIOS Beep Codes........................................................................................................71
4.3 BIOS Error Messages..................................................................................................71
4.4 Port 80h POST Codes .................................................................................................72

Contents
vii
Figures
1. Desktop Board D865PCK Components.......................................................................11
2. Block Diagram..............................................................................................................12
3. Memory Channel Configuration ...................................................................................16
4. Example of Dual Channel Configuration with Dynamic Mode......................................17
5. Example of Single Channel Configuration with Dynamic Mode...................................17
6. Example of Single Channel Configuration without Dynamic Mode..............................18
7. LAN Connector LED Locations....................................................................................24
8. Back Panel Connectors................................................................................................38
9. Audio Connectors.........................................................................................................40
10. Power and Hardware Control Connectors ...................................................................42
11. D865PCK Add-in Board and Peripheral Interface Connectors ....................................45
12. External I/O Connectors...............................................................................................46
13. Connection Diagram for Front Panel Connector..........................................................47
14. Connection Diagram for Front Panel USB Connector..................................................49
15. Location of the Jumper Blocks.....................................................................................50
16. Desktop Board D865PCK Dimensions.........................................................................52
17. I/O Shield Dimensions..................................................................................................53
18. Localized High Temperature Zones.............................................................................56
Tables
1. Feature Summary ........................................................................................................10
2. Supported System Bus Frequency and Memory Speed Combinations.......................14
3. Supported Memory Configurations ..............................................................................15
4. Characteristics of Dual/Single Channel Configuration with/without Dynamic Mode ....16
5. LAN Connector LED States .........................................................................................24
6. Effects of Pressing the Power Switch ..........................................................................25
7. Power States and Targeted System Power.................................................................26
8. Wake-up Devices and Events......................................................................................26
9. System Memory Map ...................................................................................................31
10. DMA Channels.............................................................................................................32
11. I/O Map ........................................................................................................................32
12. PCI Configuration Space Map......................................................................................33
13. Interrupts......................................................................................................................34
14. PCI Interrupt Routing Map ...........................................................................................36
15. ATAPI CD-ROM Connector .........................................................................................41
16. Front Panel Audio Connector.......................................................................................41
17. Rear Chassis Fan Connector.......................................................................................43
18. ATX12V Power Connector...........................................................................................43
19. Processor Fan Connector............................................................................................43
20. Main Power Connector.................................................................................................43
21. Front Chassis Fan Connector......................................................................................44
22. Chassis Intrusion Connector........................................................................................44
23. Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector ........................47
24. Front Panel Connector.................................................................................................47
25. States for a One-Color Power LED..............................................................................48
26. States for a Two-Color Power LED..............................................................................48
27. Front Panel Audio Connector/Jumper Block................................................................51
28. BIOS Setup Configuration Jumper Settings.................................................................51

Intel Desktop Board D865PCK Technical Product Specification
viii
29. DC Loading Characteristics .........................................................................................54
30. Fan Connector Current Capability................................................................................54
31. Thermal Considerations for Components ....................................................................57
32. Desktop Board D865PCK Environmental Specifications.............................................58
33. Safety Regulations.......................................................................................................59
34. EMC Regulations.........................................................................................................59
35. Product Certification Markings.....................................................................................62
36. BIOS Setup Program Menu Bar...................................................................................64
37. BIOS Setup Program Function Keys............................................................................64
38. Boot Device Menu Options ..........................................................................................67
39. Supervisor and User Password Functions...................................................................69
40. Beep Codes .................................................................................................................71
41. BIOS Error Messages..................................................................................................71
42. Port 80h POST Code Ranges......................................................................................72
43. Port 80h POST Codes .................................................................................................73
44. Typical Port 80h POST Sequence...............................................................................76

9
1 Product Description
What This Chapter Contains
1.1 Overview......................................................................................................................10
1.2 Online Support.............................................................................................................13
1.3 Processor.....................................................................................................................13
1.4 System Memory...........................................................................................................14
1.5 Intel®865P Chipset......................................................................................................18
1.6 I/O Controller................................................................................................................20
1.7 Audio Subsystem.........................................................................................................22
1.8 LAN Subsystem ...........................................................................................................23
1.9 Chassis Intrusion and Detection ..................................................................................24
1.10 Power Management.....................................................................................................24

Intel Desktop Board D865PCK Technical Product Specification
10
1.1 Overview
1.1.1 Feature Summary
Table 1 summarizes the major features of the Desktop Board D865PCK.
Table 1. Feature Summary
Form Factor microATX (9.60 inches by 9.60 inches [243.84 millimeters by 243.84 millimeters])
Processor • Support for an Intel®Pentium®4 processor in an mPGA478 socket with a 400 or
533 MHz system bus
• Support for an Intel®Celeron®processor in an mPGA478 socket with a
400 MHz system bus
Memory • Two 184-pin DDR SDRAM Dual Inline Memory Module (DIMM) sockets
• Support for DDR 333 and DDR 266 DIMMs
• Support for up to 2 GB of system memory
Chipset Intel®865P Chipset, consisting of:
• Intel®82865P Memory Controller Hub (MCH)
• Intel®82801EB I/O Controller Hub (ICH5)
• 8 Mbit Firmware Hub (FWH)
Video Universal 0.8 V / 1.5 V AGP 3.0 connector (with integrated retention mechanism)
supporting 1x, 4x, and 8x AGP cards or an AGP Digital Display (ADD) card
Audio Audio subsystem using the Realtek ALC202 codec
I/O Control LPC Bus I/O controller
USB Support for USB 2.0 devices
Peripheral
Interfaces • Six USB ports
• One serial port
• One parallel port
• Two Parallel ATA IDE interfaces with UDMA 33, ATA-66/100 support
• One diskette drive interface
• PS/2* keyboard and mouse ports
LAN Support 10/100 Mbits/sec LAN subsystem using the Intel®82562EZ Platform LAN Connect
(PLC) device
BIOS • BIOS resident in the 8 Mbit FWH
• Support for Advanced Configuration and Power Interface (ACPI), Plug and Play,
and SMBIOS
Instantly Available
PC Technology
• Support for PCI Local Bus Specification Revision 2.2
• Suspend to RAM support
• Wake on PCI, RS-232, front panel, PS/2 devices, and USB ports
Expansion
Capabilities Three PCI bus add-in card connectors (SMBus routed to PCI bus connector 2)
For information about Refer to
Available configurations for the Desktop Boards D865PCK Section 1.2, page 13

Product Description
11
1.1.2 Board Layout
Figure 1 shows the location of the major components.
OM17040
F
B
AE
C D
H
K
I
J
G
ON
Q
PRTV
U S
M
W
X
Y
Z
BB
AA
L
A Audio codec O Diskette drive connector
B Front panel audio connector P Parallel ATE IDE connectors
C Ethernet PLC device (optional) Q Front chassis fan connector
D AGP connector R Chassis intrusion connector
E Rear chassis fan connector S 8 Mbit Firmware Hub (FWH)
F Back panel connectors T Speaker
G +12V power connector (ATX12V) U BIOS Setup configuration jumper block
H mPGA478 processor socket V Auxiliary front panel power LED connector
I Processor fan connector W Front panel connector
J Intel 82865P MCH X Intel 82801EB I/O Controller Hub (ICH5)
K DIMM Channel A socket Y Front panel USB connector
L DIMM Channel B socket Z Battery
M I/O controller AA PCI bus add-in card connectors
N Power connector BB ATAPI CD-ROM connector
Figure 1. Desktop Board D865PCK Components

Intel Desktop Board D865PCK Technical Product Specification
12
1.1.3 Block Diagram
Figure 2 is a block diagram of the major functional areas of the board.
Intel 865P Chipset
Intel 82801EB
I/O Controller Hub
(ICH5)
Intel 82865P
Memory Controller
Hub (MCH)
8 Mbit
Firmware Hub
(FWH)
AHA
Bus
System Bus
(400/533 MHz)
mPGA478
Processor Socket
Parallel ATA IDE
Connectors (2)
Diskette Drive
Connector
LPC Bus
I/O
Controller PS/2 Keyboard
PS/2 Mouse
Parallel Port
Serial Port
Parallel ATA
IDE Interface
LPC
Bus
OM17554
Realtek
ALC202
Audio Codec Mic In
CD-ROM
Line In
LAN
Connector
10/100
LAN PLC
CSMA/CD
Unit Interface
AGP
Interface
Universal 0.8/
1.5 V AGP 3.0
Connector
= connector or socket
PCI Bus
SMBus
AC
Link
Back Panel/
Front Panel
USB Ports
USB
Dual-Channel
Memory Bus
SMBus
PCI Slot 1
PCI Slot 2
PCI Slot 3
Line Out
Channel A
DIMM
Channel B
DIMM
Figure 2. Block Diagram

Product Description
13
1.2 Online Support
To find information about… Visit this World Wide Web site:
Intel®Desktop Board D865PCK under
“Desktop Board Products” or “Desktop
Board Support”
http://www.intel.com/design/motherbd
http://support.intel.com/support/motherboards/desktop
Available configurations for the Desktop
Board D865PCK http://developer.intel.com/design/motherbd/ck/ck_available.htm
Processor data sheets http://www.intel.com/design/litcentr
ICH5 addressing http://developer.intel.com/design/chipsets/datashts
Custom splash screens http://intel.com/design/motherbd/gen_indx.htm
Audio software and utilities http://www.intel.com/design/motherbd
LAN software and drivers http://www.intel.com/design/motherbd
1.3 Processor

NOTE
Refer to Thermal Considerations (Section 2.12, page 55) for important information when using an
Intel Pentium 4 processor operating above 2.80 GHz with this Intel desktop board.
The board is designed to support the following:
• Intel Pentium4 processors in an mPGA478 processor socket with a 400 or 533 MHz system
bus
• Intel Celeron processors in an mPGA478 processor socket with a 400 MHz system bus
See the Intel web site listed below for the most up-to-date list of supported processors.
For information about… Refer to:
Supported processors for the D865PCK board http://www.intel.com/design/motherbd/ck/ck_proc.htm
CAUTION
Use only the processors listed on web site above. Use of unsupported processors can damage the
board, the processor, and the power supply.
#
INTEGRATOR’S NOTES
• Use only ATX12V-, SFX12V-, or TFX12V-compliant power supplies. ATX12V, SFX12V, and
TFX12V power supplies have an additional power lead that provides required supplemental
power for the processor. Always connect the 20-pin and 4-pin leads of ATX12V, SFX12V, and
TFX12V power supplies to the corresponding connectors on the desktop board, otherwise the
board will not boot.
• Do not use a standard ATX power supply. The board will not boot with a standard ATX power
supply.
• Refer to Table 2 on page 14 for a list of supported system bus frequency and memory speed
combinations.

Intel Desktop Board D865PCK Technical Product Specification
14
For information about Refer to
Power supply connectors Section 2.8.2.2, page 40
1.4 System Memory
The board has two DIMM sockets and supports the following memory features:
• 2.5 V (only) 184-pin DDR SDRAM DIMMs with gold-plated contacts
• Unbuffered, single-sided or double-sided DIMMs with the following restriction:
⎯ Double-sided DIMMS with x16 organization are not supported.
• 2 GB maximum total system memory
• Minimum total system memory: 64 MB
• Non-ECC DIMMs
• Serial Presence Detect
• DDR333 and DDR266 SDRAM DIMMs
Table 2 lists the supported system bus frequency and memory speed combinations.
Table 2. Supported System Bus Frequency and Memory Speed Combinations
To use this type of DIMM… The processor's system bus frequency must be…
DDR333 533 MHz
DDR266 533 or 400 MHz
NOTES
• Remove the AGP video card before installing or upgrading memory to avoid interference with
the memory retention mechanism.
• To be fully compliant with all applicable DDR SDRAM memory specifications, the board
should be populated with DIMMs that support the Serial Presence Detect (SPD) data structure.
This allows the BIOS to read the SPD data and program the chipset to accurately configure
memory settings for optimum performance. If non-SPD memory is installed, the BIOS will
attempt to correctly configure the memory settings, but performance and reliability may be
impacted or the DIMMs may not function under the determined frequency.

Product Description
15
Table 3 lists the supported DIMM configurations.
Table 3. Supported Memory Configurations
DIMM
Capacity Configuration DDR SDRAM Density DDR SDRAM Organization Front-side/Back-side Number of DDR SDRAM Devices
64 MB SS 64 Mbit 8 M x 8/empty 8
64 MB SS 128 Mbit 8 M x 16/empty 4
128 MB DS 64 Mbit 8 M x 8/8 M x 8 16
128 MB SS 128 Mbit 16 M x 8/empty 8
128 MB SS 256 Mbit 16 M x 16/empty 4
256 MB DS 128 Mbit 16 M x 8/16 M x 8 16
256 MB SS 256 Mbit 32 M x 8/empty 8
256 MB SS 512 Mbit 32 M x 16/empty 4
512 MB DS 256 Mbit 32 M x 8/32 M x 8 16
512 MB SS 512 Mbit 64 M x 8/empty 8
1024 MB DS 512 Mbit 64 M x 8/64 M x 8 16
Note: In the second column, “DS” refers to double-sided memory modules (containing two rows of DDR SDRAM) and “SS”
refers to single-sided memory modules (containing one row of DDR SDRAM).

Intel Desktop Board D865PCK Technical Product Specification
16
1.4.1 Memory Configurations
The Intel 82865P MCH component provides two features for enhancing memory throughput:
• Dual Channel memory interface. The board has two memory channels, each with a single
DIMM socket, as shown in Figure 3
• Dynamic Addressing Mode. Dynamic mode minimizes overhead by reducing memory
accesses
Table 4 summarizes the characteristics of Dual and Single Channel configurations with and without
the use of Dynamic Mode.
Table 4. Characteristics of Dual/Single Channel Configuration with/without Dynamic
Mode
Throughput
Level Configuration Characteristics
Highest Dual Channel with Dynamic Mode DIMMs matched
(Example configuration shown in Figure 4)
Single Channel with Dynamic Mode Single DIMM
(Example configuration shown in Figure 5)
Single Channel without Dynamic Mode DIMMs not matched
(Example configuration shown in Figure 6)
Lowest
OM17042
Channel A DIMM
Channel B, DIMM
Figure 3. Memory Channel Configuration

Product Description
17
Channel A DIMM Channel B DIMM
Dual Channel Configuration with Dynamic Mode
(DIMMs matched)
OM17045
Intel
82865P
MCH
Throughput
Level Configuration Characteristics
Highest Dual Channel with Dynamic Mode DIMMs matched
Single Channel with Dynamic Mode Single DIMM
Lowest
Single Channel without Dynamic Mode DIMMs not matched
Figure 4. Example of Dual Channel Configuration with Dynamic Mode
Channel A DIMM Channel B DIMM
Single Channel Configuration with Dynamic Mode
(Single DIMM)
OM17044
Intel
82865P
MCH
Throughput
Level Configuration Characteristics
Highest Dual Channel with Dynamic Mode DIMMs matched
Single Channel with Dynamic Mode Single DIMM
Lowest
Single Channel without Dynamic Mode DIMMs not matched
Figure 5. Example of Single Channel Configuration with Dynamic Mode

Intel Desktop Board D865PCK Technical Product Specification
18
Channel A DIMM Channel B DIMM
Single Channel Configuration without Dynamic Mode
(DIMMs not matched)
OM17043
Intel
82865P
MCH
Throughput
Level Configuration Characteristics
Highest Dual Channel with Dynamic Mode DIMMs matched
Single Channel with Dynamic Mode Single DIMM
Lowest
Single Channel without Dynamic Mode DIMMs not matched
Figure 6. Example of Single Channel Configuration without Dynamic Mode
1.5 Intel®865P Chipset
The Intel 865P chipset consists of the following devices:
• Intel 82865P Memory Controller Hub (MCH) with Accelerated Hub Architecture (AHA) bus
• Intel 82801EB I/O Controller Hub (ICH5) with AHA bus
• Firmware Hub (FWH)
The MCH is a centralized controller for the system bus, the memory bus, the AGP bus, and the
Accelerated Hub Architecture interface. The ICH5 is a centralized controller for the board’s I/O
paths. The FWH provides the nonvolatile storage of the BIOS.
For information about Refer to
The Intel 865P chipset http://developer.intel.com/
Resources used by the chipset Chapter 2
1.5.1 Universal 0.8 V / 1.5 V AGP 3.0 Connector
The AGP connector supports the following:
• 4x, 8x AGP 3.0 add-in cards with 0.8 V I/O
• 1x, 4x AGP 2.0 add-in cards with 1.5 V I/O
• AGP Digital Display (ADD) cards

Product Description
19
AGP is a high-performance interface for graphics-intensive applications, such as 3D applications.
While based on the PCI Local Bus Specification, Rev. 2.2, AGP is independent of the PCI bus and
is intended for exclusive use with graphical display devices. AGP overcomes certain limitations of
the PCI bus related to handling large amounts of graphics data with the following features:
• Pipelined memory read and write operations that hide memory access latency
• Demultiplexing of address and data on the bus for nearly 100 percent efficiency
#
INTEGRATOR’S NOTES
• AGP 2x operation is not supported.
• Install memory in the DIMM sockets prior to installing the AGP video card to avoid
interference with the memory retention mechanism.
• The AGP connector is keyed for Universal 0.8 V AGP 3.0 cards or 1.5 V AGP 2.0 cards only.
Do not attempt to install a legacy 3.3 V AGP card. The AGP connector is not mechanically
compatible with legacy 3.3 V AGP cards.
For information about Refer to
The location of the AGP connector Figure 1, page 11
1.5.2 USB
The board supports up to six USB 2.0 ports, supports UHCI and EHCI, and uses UHCI- and EHCI-
compatible drivers.
The ICH5 provides the USB controller for all ports. The port arrangement is as follows:
• Two ports are implemented with stacked back panel connectors, adjacent to the PS/2
connectors
• Two ports are implemented with stacked back panel connectors, adjacent to the audio
connectors
• Two ports are routed to a front panel USB connector

NOTES
• Computer systems that have an unshielded cable attached to a USB port may not meet FCC
Class B requirements, even if no device is attached to the cable. Use shielded cable that meets
the requirements for full-speed devices.
• Native USB 2.0 support has been tested with drivers for Windows* 2000 (with Service Pack 3)
and Windows XP (with Service Pack 1) and is not currently supported by any other operating
system. Check Intel’s Desktop Board website for possible driver updates for other operating
systems.
For information about Refer to
The location of the USB connectors on the back panel Figure 8, page 38
The location of the front panel USB connector Figure 12, page 46

Intel Desktop Board D865PCK Technical Product Specification
20
1.5.3 IDE Support
The board provides two Parallel ATA IDE connectors, which support a total of four devices (two
per connector). The ICH5’s Parallel ATA IDE controller has two independent bus-mastering
Parallel ATA IDE interfaces that can be independently enabled. The Parallel ATA IDE interfaces
support the following modes:
• Programmed I/O (PIO): processor controls data transfer.
• 8237-style DMA: DMA offloads the processor, supporting transfer rates of up to 16 MB/sec.
• Ultra DMA: DMA protocol on IDE bus supporting host and target throttling and transfer rates
of up to 33 MB/sec.
• ATA-66: DMA protocol on IDE bus supporting host and target throttling and transfer rates of
up to 66 MB/sec. ATA-66 protocol is similar to Ultra DMA and is device driver compatible.
• ATA-100: DMA protocol on IDE bus allows host and target throttling. The ICH5’s ATA-100
logic can achieve read transfer rates up to 100 MB/sec and write transfer rates up to 88 MB/sec.
 NOTE
ATA-66 and ATA-100 are faster timings and require a specialized cable to reduce reflections,
noise, and inductive coupling.
The Parallel ATA IDE interfaces also support ATAPI devices (such as CD-ROM drives) and ATA
devices.
The BIOS supports Logical Block Addressing (LBA) and Extended Cylinder Head Sector (ECHS)
translation modes. The drive reports the transfer rate and translation mode to the BIOS.
For information about Refer to
The location of the Parallel ATA IDE connectors Figure 11, page 45
1.5.4 Real-Time Clock, CMOS SRAM, and 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.
 NOTE
If the battery and AC power fail, custom defaults, if previously saved, will be loaded into CMOS
RAM at power-on.
1.6 I/O Controller
The I/O controller provides the following features:
• 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