Intel BLKDX38BT, DX38BT Technical Product Specification
Intel® Desktop Board
DX38BT
Technical Product Specification
The Intel® Desktop Board DX38BT 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 DX38BT Specification Update.
October 2007
Order Number: E14885-001
Revision History
Revision Revision History Date
-001 First DRAFT of the Intel® Desktop Board DX38BT Technical Product
Specification
This product specification applies to only the standard Intel® Desktop Board DX38BT with BIOS
identifier BTX3810J.86A.
Changes to this specification will be published in the Intel Desktop Board DX38BT Specification
Update before being incorporated into a revision of this document.
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®
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desktop boards are evaluated as Information Technology Equipment (I.T.E.) for use in personal
October 2007
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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
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Copyright © 2007, Intel Corporation. All rights reserved.
Preface
This Technical Product Specification (TPS) specifies the board layout, components,
connectors, power and environmental requirements, and the BIOS for the
®
Intel
Desktop Board DX38BT.
Intended Audience
The TPS is intended to provide detailed, technical information about the Intel Desktop
Board DX38BT 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 DX38BT
2 A map of the resources of the Desktop Board
3 The features supported by the BIOS Setup program
4 A description of the BIOS error messages, beep codes, and POST codes
5 Regulatory compliance and battery disposal information
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.
iii
Intel Desktop Board DX38BT Technical Product Specification
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 DX38BT, 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
Gbits/sec Gigabits 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)
Mbits/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.
iv
Contents
1 Product Description
1.1 Overview........................................................................................ 10
1.1.1 Feature Summary ................................................................ 10
1.1.2 Board Layout ....................................................................... 12
1.1.3 Block Diagram ..................................................................... 14
1.2 Legacy Considerations...................................................................... 15
1.3 Online Support................................................................................ 15
1.4 Processor ....................................................................................... 15
1.5 System Memory .............................................................................. 16
1.5.1 Memory Configurations ......................................................... 17
1.6 Intel® X38 Chipset........................................................................... 19
1.6.1 USB ................................................................................... 19
1.6.2 Serial ATA Interfaces ............................................................ 20
1.7 Discrete eSATA/PATA Controller......................................................... 21
1.7.1 External Serial ATA Support................................................... 21
1.7.2 Parallel ATA IDE Controller..................................................... 21
1.8 Real-Time Clock Subsystem .............................................................. 22
1.9 Legacy I/O Controller ....................................................................... 23
1.9.1 Consumer Infrared (CIR)....................................................... 23
1.10 Audio Subsystem............................................................................. 24
1.10.1 Audio Subsystem Software .................................................... 24
1.10.2 Audio Connectors ................................................................. 24
1.10.3 8-Channel (7.1) Audio Subsystem........................................... 25
1.11 LAN Subsystem............................................................................... 26
1.11.1 Ethernet Controller ............................................................... 26
1.11.2 LAN Subsystem Software....................................................... 27
1.11.3 RJ-45 LAN Connector with Integrated LEDs .............................. 27
1.11.4 Alert Standard Format (ASF) Support ...................................... 28
1.12 Hardware Management Subsystem .................................................... 29
1.12.1 Hardware Monitoring and Fan Control...................................... 29
1.12.2 Fan Monitoring..................................................................... 29
1.12.3 Chassis Intrusion and Detection.............................................. 29
1.12.4 Thermal Monitoring .............................................................. 30
1.13 Power Management ......................................................................... 31
1.13.1 ACPI................................................................................... 31
1.13.2 Hardware Support ................................................................ 34
1.14 Onboard Power Button ..................................................................... 39
2 Technical Reference
2.1 Memory Resources .......................................................................... 41
2.1.1 Addressable Memory............................................................. 41
2.1.2 Memory Map........................................................................ 43
2.2 Connectors and Headers................................................................... 43
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Intel Desktop Board DX38BT Technical Product Specification
2.2.1 Back Panel Connectors .......................................................... 43
2.2.2 Component-side Connectors and Headers ................................ 45
2.3 Jumper Block .................................................................................. 55
2.4 Mechanical Considerations ................................................................ 56
2.4.1 Form Factor......................................................................... 56
2.5 Electrical Considerations ................................................................... 57
2.5.1 Power Supply Considerations ................................................. 57
2.5.2 Fan Header Current Capability................................................ 58
2.5.3 Add-in Board Considerations .................................................. 58
2.6 Thermal Considerations .................................................................... 58
2.7 Reliability ....................................................................................... 61
2.8 Environmental ................................................................................ 61
3 Overview 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................................................................... 65
3.4 System Management BIOS (SMBIOS)................................................. 65
3.5 Legacy USB Support ........................................................................ 66
3.6 BIOS Updates ................................................................................. 67
3.6.1 Language Support ................................................................ 67
3.6.2 Custom Splash Screen .......................................................... 67
3.7 BIOS Recovery................................................................................ 68
3.8 Boot Options................................................................................... 69
3.8.1 CD-ROM Boot ...................................................................... 69
3.8.2 Network Boot....................................................................... 69
3.8.3 Booting Without Attached Devices........................................... 69
3.8.4 Changing the Default Boot Device During POST ........................ 69
3.9 Adjusting Boot Speed....................................................................... 70
3.9.1 Peripheral Selection and Configuration..................................... 70
3.9.2 BIOS Boot Optimizations ....................................................... 70
3.10 BIOS Security Features .................................................................... 71
4 Error Messages and Beep Codes
4.1 Speaker ......................................................................................... 73
4.2 BIOS Beep Codes ............................................................................ 73
4.3 BIOS Error Messages ....................................................................... 73
4.4 Port 80h POST Codes ....................................................................... 74
5 Regulatory Compliance and Battery Disposal Information
5.1 Regulatory Compliance..................................................................... 79
5.1.1 Safety Standards.................................................................. 79
5.1.2 European Union Declaration of Conformity Statement................ 80
5.1.3 Product Ecology Statements................................................... 81
vi
Contents
5.1.4 EMC Regulations .................................................................. 85
5.1.5 Product Certification Markings (Board Level)............................. 86
5.2 Battery Disposal Information............................................................. 87
Figures
1. Major Board Components.................................................................. 12
2. Block Diagram ................................................................................ 14
3. Memory Channel and DIMM Configuration........................................... 18
4. Back Panel Audio Connector Options .................................................. 25
5. LAN Connector LED Locations............................................................ 27
6. Thermal Sensors and Fan Headers ..................................................... 30
7. Locations of Indicator LEDs............................................................... 38
8. Location of the Onboard Power Button................................................ 39
9. Detailed System Memory Address Map ............................................... 42
10. Back Panel Connectors ..................................................................... 44
11. Component-side Connectors and Headers ........................................... 45
12. Connection Diagram for Front Panel Header ........................................ 52
13. Connection Diagram for Front Panel USB Headers ................................ 54
14. Connection Diagram for IEEE 1394a Header ........................................ 54
15. Location of the Jumper Block............................................................. 55
16. Board Dimensions ........................................................................... 56
17. Localized High Temperature Zones..................................................... 60
Tables
1. Feature Summary............................................................................ 10
2. Components Shown in Figure 1 ......................................................... 13
3. Supported Memory Configurations ..................................................... 16
4. LAN Connector LED States ................................................................ 27
5. Effects of Pressing the Power Switch .................................................. 32
6. Power States and Targeted System Power........................................... 33
7. Wake-up Devices and Events ............................................................ 34
8. System Memory Map ....................................................................... 43
9. Component-side Connectors and Headers Shown in Figure 11................ 46
10. HD Audio Link Header ...................................................................... 47
11. Front Panel Audio Header ................................................................. 47
12. Serial ATA Connectors ...................................................................... 47
13. Chassis Intrusion Header .................................................................. 48
14. Front and Rear Chassis (3-Pin) Fan Headers ........................................ 48
15. Processor and Rear Chassis 2 (4-Pin) Fan Headers ............................... 48
16. Auxiliary Front Panel Power/Sleep LED Header ..................................... 49
17. Processor Core Power Connector........................................................ 50
18. Main Power Connector...................................................................... 51
19. Auxiliary PCI Express Graphics Power ................................................. 51
20. Front Panel Header .......................................................................... 52
21. States for a One-Color Power LED ...................................................... 53
vii
Intel Desktop Board DX38BT Technical Product Specification
22. States for a Two-Color Power LED ...................................................... 53
23. BIOS Setup Configuration Jumper Settings.......................................... 55
24. Recommended Power Supply Current Values ....................................... 57
25. Fan Header Current Capability........................................................... 58
26. Thermal Considerations for Components ............................................. 60
27. Environmental Specifications............................................................. 61
28. BIOS Setup Program Menu Bar .......................................................... 64
29. BIOS Setup Program Function Keys.................................................... 64
30. Acceptable Drives/Media Types for BIOS Recovery ............................... 68
31. Boot Device Menu Options ................................................................ 69
32. Supervisor and User Password Functions............................................. 71
33. Beep Codes .................................................................................... 73
34. BIOS Error Messages ....................................................................... 73
35. Port 80h POST Code Ranges.............................................................. 74
36. Port 80h POST Codes ....................................................................... 75
37. Typical Port 80h POST Sequence........................................................ 78
38. Safety Standards............................................................................. 79
39. Lead-Free Board Markings ................................................................ 84
40. EMC Regulations ............................................................................. 85
41. Product Certification Markings ........................................................... 86
viii
1 Product Description
What This Chapter Contains
1.1 Overview........................................................................................ 10
1.2 Legacy Considerations...................................................................... 15
1.3 Online Support................................................................................ 15
1.4 Processor ....................................................................................... 15
1.5 System Memory .............................................................................. 16
1.6 Intel® X38 Chipset........................................................................... 19
1.7 Discrete eSATA/PATA Controller......................................................... 21
1.8 Real-Time Clock Subsystem .............................................................. 22
1.9 Legacy I/O Controller ....................................................................... 23
1.10 Audio Subsystem............................................................................. 24
1.11 LAN Subsystem............................................................................... 26
1.12 Hardware Management Subsystem .................................................... 29
1.13 Power Management ......................................................................... 31
1.14 Onboard Power Button ..................................................................... 39
9
Intel Desktop Board DX38BT Technical Product Specification
1.1 Overview
1.1.1 Feature Summary
Table 1 summarizes the major features of the board.
Table 1. Feature Summary
Form Factor
Processor
Memory
Chipset
Audio Intel® High Definition Audio subsystem
Legacy I/O Control Winbond legacy I/O controller for Consumer Infrared (CIR)
Peripheral
Interfaces
BIOS
Instantly Available
PC Technology
LAN Support
ATX (12.00 inches by 9.60 inches [304.80 millimeters by 243.84 millimeters])
®
• Intel
Core™2 Extreme Processor in an LGA775 socket with a 1333 MHz and
1066 MHz system bus
®
• Intel
Core™2 Duo Processor in an LGA775 socket with a 1333 MHz,
1066 MHz, and 800 MHz system bus
®
• Intel
Pentium® Dual Core Processor in an LGA775 socket with a 800 MHz
system bus
• Four 240-pin DDR3 SDRAM Dual Inline Memory Module (DIMM) sockets
• Support for DDR3 1333 MHz, DDR3 1066 MHz, and DDR3 800 MHz DIMMs
• Support for up to 8 GB of system memory
• Support for ECC and non-ECC memory
®
X38 Chipset, consisting of:
Intel
®
• Intel
• Intel
82X38 Memory Controller Hub (MCH)
®
82801IR I/O Controller Hub (ICH9R)
• Twelve USB 2.0 ports
• Six Serial ATA interfaces with RAID support
• Two External Serial ATA (eSATA) ports on back panel with RAID support
• One Parallel ATA IDE interface with UDMA 33, ATA-66/100 support
• Two IEEE 1394a ports
®
• Intel
BIOS resident in the SPI Flash device
• Support for Advanced Configuration and Power Interface (ACPI), Plug and Play,
and SMBIOS
• Support for PCI Local Bus Specification Revision 2.2
• Support for PCI Express* Revision 1.0a
• Suspend to RAM support
• Wake on PCI, front panel, CIR, and USB ports
Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel
Gigabit Ethernet Controller
®
82566DC
continued
10
Table 1. Feature Summary (continued)
Expansion
Capabilities
Hardware Monitor
Subsystem
• Two PCI* Conventional bus add-in card connectors (SMBus routed to both PCI
Conventional bus add-in card connectors)
• Two PCI Express 2.0 x16 bus add-in card connectors
• One PCI Express 1.1 x4 (x16 connector) bus add-in card connector
• Hardware monitoring and fan control ASIC
• Voltage sense to detect out of range power supply voltages
• Thermal sense to detect out of range thermal values
• Four fan headers using PWM control
• Three fan sense inputs used to monitor fan activity
• Fan speed control using voltage control (3-pin fan headers front and rear)
• Support for Product Environmental Control Interface (PECI)
Product Description
11
Intel Desktop Board DX38BT Technical Product Specification
1.1.2 Board Layout
Figure 1 shows the location of the major components on board DX38BT.
Figure 1. Major Board Components
Table 2 lists the components identified in Figure 1.
12
Product Description
Table 2. Components Shown in Figure 1
Item/callout
from Figure 1 Descript
A Rear fan header 2
B PCI Conventional bus add-in card connector 2
C PCI Express x16 (electrical x4) bus add-in card connector
D PCI Conventional bus add-in card connector 1
E Secondary PCI Express x16 (electrical x16) bus add-in card connector
F Front panel audio header
G Primary PCI Express x16 (electrical x16) bus add-in card connector
H Rear chassis fan header
I Memory Controller Hub (MCH) fan header
J Back panel connectors
K Processor core power connector (2 X 4)
L LGA775 processor socket
M Processor fan header
N DIMM Channel A sockets [2]
O DIMM Channel B sockets [2]
P Parallel ATE IDE connector
Q Main power connector
R Front chassis fan header
S Intel 82X38 Memory Controller Hub (MCH)
T Chassis intrusion header
U Battery
V Serial ATA connectors [6]
W Front panel USB headers [2]
X Speaker
Y Intel 82801IR I/O Controller Hub (ICH9R)
Z IEEE 1394a front panel header
AA BIOS Setup configuration jumper block
BB Onboard power button
CC Auxiliary front panel power LED header
DD Front panel CIR receiver (input) header
EE Back panel CIR emitter (output) header
FF Front panel header
GG High Definition Audio Link header
HH Auxiliary PCI Express graphics power connector
II S/PDIF connector
ion
13
Intel Desktop Board DX38BT Technical Product Specification
1.1.3 Block Diagram
Figure 2 is a block diagram of the major functional areas of the board DX38BT.
14
Figure 2. Block Diagram
Product Description
1.2 Legacy Considerations
This board differs from other Intel Desktop Board products, with specific changes
including (but not limited to) the following:
• No parallel port
• No floppy drive connector
• No serial port
• No PCI Express X1 connector
• No PS/2 connectors
1.3 Online Support
To find information about… Visit this World Wide Web site:
Intel® Desktop Board DX38BT http://www.intel.com/products/motherboard/ DX38BT/index.htm
Desktop Board Support http://support.intel.com/support/motherboards/desktop/DX38BT
Available configurations for the
Desktop Board DX38BT
Supported processors http://www.intel.com/go/findcpu
Chipset information http://www.intel.com/products/desktop/chipsets/index.htm
BIOS and driver updates http://downloadcenter.intel.com/Product_Filter.aspx?ProductID=2807
http://www.intel.com/products/motherboard/ DX38BT/index.htm
1.4 Processor
The board is designed to support the following processors:
• Intel Core 2 Extreme Processor in an LGA775 socket with a 1333MHz and 1066
MHz system bus
• Intel Core 2 Duo Processor in an LGA775 socket with a 1333MHz, 1066 MHz, and
800 MHz system bus
• Intel Pentium Dual Core Processor in an LGA775 socket with a 800 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 board http://support.intel.com/support/motherboards/desktop/dx3
8bt/sb/CS-028329.htm
CAUTION
Use only the processors listed on the web site above. Use of unsupported processors
can damage the board, the processor, and the power supply.
INTEGRATOR’S NOTE
#
This board has specific requirements for providing power to the processor. Refer to
Section 2.5.1 on page 57 for information on power supply requirements for this board.
15
Intel Desktop Board DX38BT Technical Product Specification
1.5 System Memory
The board has four DIMM sockets and supports the following memory features:
• 1.5 V with option to raise voltage to support higher performance DDR3 SDRAM
DIMMs
• Unbuffered, single-sided or double-sided DIMMs with the following restriction:
Double-sided DIMMs with x16 organization are not supported.
• 8 GB maximum total system memory. Refer to Section 2.1.1 on page 41 for
i
nformation on the total amount of addressable memory.
• Minimum total system memory: 256 MB
• ECC DIMMs and non-ECC DIMMs
• Serial Presence Detect
• DDR3 1333, DDR3 1066, and DDR3 800 MHz SDRAM DIMMs
NOTES
• Remove the video card in the Primary PCI Express x16 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 nonSPD 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.
Table 3 lists the supported DIMM configurations.
Table 3.
DIMM
Capacity
256 MB SS 512 Mbit 32 M x 16/empty 4 [5]
512 MB SS 512 Mbit 64 M x 8/empty 8 [9]
512 MB SS 1 Gbit 64 M x 16/empty 4 [5]
1024 MB DS 512 Mbit 64 M x 8/64 M x 8 16 [18]
1024 MB SS 1 Gbit 128 M x 8/empty 8 [9]
2048 MB DS 1 Gbit 128 M x 8/128 M x 8 16 [18]
Notes:
1. In the second column, “DS” refers to double-sided memory modules (containing two rows of SDRAM)
and “SS” refers to single-sided memory modules (containing one row of SDRAM).
2. In the fifth column, the number in brackets specifies the number of SDRAM devices on an ECC DIMM.
Supported Memory Configurations
Configuration
(Note 1)
SDRAM
Density
SDRAM Organization
Front-side/Back-side
Number of SDRAM
Devices
(Note 2)
For information about… Refer to:
Tested Memory http://support.intel.com/support/motherboards/desktop/sb/CS-
025414.htm
16
Product Description
1.5.1 Memory Configurations
The Intel 82X38 MCH supports the following types of memory organization:
• Dual channel (Interleaved) mode. This mode offers the highest throughput for
real world applications. Dual channel mode is enabled when the installed memory
capacities of both DIMM channels are equal. Technology and device width can vary
from one channel to the other but the installed memory capacity for each channel
must be equal. If different speed DIMMs are used between channels, the slowest
memory timing will be used.
• Single channel (Asymmetric) mode. This mode is equivalent to single channel
bandwidth operation for real world applications. This mode is used when only a
single DIMM is installed or the memory capacities are unequal. Technology and
device width can vary from one channel to the other. If different speed DIMMs are
used between channels, the slowest memory timing will be used.
• Flex mode. This mode provides the most flexible performance characteristics.
The bottommost DRAM memory (the memory that is lowest within the system
memory map) is mapped to dual channel operation; the topmost DRAM memory
(the memory that is nearest to the 8 GB address space limit), if any, is mapped to
single channel operation. Flex mode results in multiple zones of dual and single
channel operation across the whole of DRAM memory. To use flex mode, it is
necessary to populate both channels.
For information about… Refer to:
Memory Configuration Examples http://www.intel.com/support/motherboards/desktop/sb/cs-
011965.htm
Figure 3 illustrates the memory channel and DIMM configuration.
NOTE
The DIMM 0 sockets of both channels are blue. The DIMM 1 sockets of both channels
are black.
17
Intel Desktop Board DX38BT Technical Product Specification
Figure 3. Memory Channel and DIMM Configuration
18
Product Description
1.6 Intel
®
X38 Chipset
The Intel X38 chipset consists of the following devices:
• Intel 82X38 Memory Controller Hub (MCH) with Direct Media Interface (DMI)
interconnect
• Intel 82801IR I/O Controller Hub (ICH9R)
The MCH component provides interfaces to the processor, memory, and PCI Express.
The ICH9R is a centralized controller for the board’s I/O paths.
For information about Refer to
The Intel X38 chipset http://www.intel.com/products/desktop/chipsets/index.htm
Resources used by the chipset Chapter 2
1.6.1 USB
The board supports up to twelve USB 2.0 ports, supports UHCI and EHCI, and uses
UHCI- and EHCI-compatible drivers.
The ICH9R provides the USB controller for all ports. The port arrangement is as
follows:
• Eight ports are implemented with dual stacked back panel connectors adjacent to
the audio connectors
• Four ports are routed to two separate front panel USB headers
For information about Refer to
The location of the USB connectors on the back panel Figure 10, page 44
The location of the front panel USB headers Figure 11, page 45
19
Intel Desktop Board DX38BT Technical Product Specification
1.6.2 Serial ATA Interfaces
The board provides six Serial ATA (SATA) connectors, which support one device per
connector. The board also provides two red-colored external Serial ATA (eSATA)
connectors on the back panel.
1.6.2.1 Serial ATA Support
The board’s Serial ATA controller offers six independent Serial ATA ports with a
theoretical maximum transfer rate of 3 Gbits/sec per port. One device can be installed
on each port for a maximum of six Serial ATA devices. A point-to-point interface is
used for host to device connections, unlike Parallel ATA IDE which supports a
master/slave configuration and two devices per channel.
For compatibility, the underlying Serial ATA functionality is transparent to the
operating system. The Serial ATA controller can operate in both legacy and native
modes. In legacy mode, standard IDE I/O and IRQ resources are assigned (IRQ 14
and 15). In Native mode, standard PCI Conventional bus resource steering is used.
Native mode is the preferred mode for configurations using the Windows* XP and
Windows Vista operating systems.
NOTE
Many Serial ATA drives use new low-voltage power connectors and require adapters or
power supplies equipped with low-voltage power connectors.
For more information, see: http://www.serialata.org/
For information about Refer to
The location of the Serial ATA connectors Figure 11, page 45
.
1.6.2.2 Serial ATA RAID
The DX38BT Desktop Board supports the following RAID (Redundant Array of
Independent Drives) levels via the ICH9R:
• RAID 0 - data striping
• RAID 1 - data mirroring
• RAID 0+1 (or RAID 10) - data striping and mirroring
• RAID 5 - distributed parity
NOTE
In order to use supported RAID features, you must first enable RAID in the BIOS.
Also, during Microsoft Windows XP installation, you must press F6 to install the RAID
drivers. See your Microsoft Windows XP documentation for more information about
installing drivers during installation.
20
Product Description
1.7 Discrete eSATA/PATA Controller
The board provides a discrete Marvell* controller to support two eSATA connectors on
the back panel and one PATA connector.
1.7.1 External Serial ATA Support
The red Serial ATA connectors on the back panel can be used for an external SATA
drive. They can also be used for port replication, which allows the aggregation of
multiple hard drives on each of the eSATA ports. Figure 10 on page 44 shows the
l
ocation of the External Serial ATA-compatible SATA ports on the back panel.
The Marvell 88SE621 controller uses the PCI Express for data transfer with a
theoretical maximum transfer rate of 3 Gbits/sec per port. These connectors are in
addition to the six SATA connectors of the ICH9R SATA interface.
The discrete SATA interface supports the following RAID levels:
• RAID 0
• RAID 1
NOTE
The Marvell 88SE621 controller supports single drive non-RAID configurations as well
as RAID configurations. For RAID configurations, you must install the RAID drivers by
pressing F6 during operating system installation. See your operating system
installation documentation for more information about installing drivers during the
installation process.
For information about Refer to
The location of the discrete SATA RAID connectors Figure 11, page 45
1.7.2 Parallel ATA IDE Controller
The Parallel ATA IDE controller has one bus-mastering Parallel ATA IDE interface. The
Parallel ATA IDE interface supports 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 ATA-100
logic can achieve read transfer rates up to 100 MB/sec and write transfer rates up
to 88 MB/sec.
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Intel Desktop Board DX38BT Technical Product Specification
NOTE
ATA-66 and ATA-100 are faster timings and require an 80-pin conductor cable to
reduce reflections, noise, and inductive coupling.
The Parallel ATA IDE interface also supports 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 connector Figure 11, page 45
1.8 Real-Time Clock Subsystem
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.
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 1 on page 12 shows the location of the battery.
22
Product Description
1.9 Legacy I/O Controller
The I/O controller provides the following features:
• Consumer Infrared (CIR) headers
• Serial IRQ interface compatible with serialized IRQ support for PCI systems
• Intelligent power management, including a programmable wake-up event interface
• PCI power management support
The BIOS Setup program provides configuration options for the I/O controller.
1.9.1 Consumer Infrared (CIR)
The Consumer Infrared (CIR) feature is designed to comply with Microsoft Consumer
Infrared usage models. Microsoft Windows Vista is the supported operating system
The CIR feature is made up of two separate pieces: the receiving (receiver) header,
and the output (emitter) header. The receiving header consists of a filtered translated
infrared input compliant with Microsoft CIR specifications, and also a “learning”
infrared input. This learning input is simply a high pass input which the computer can
use to “learn” to speak the infrared communication language of other user remotes.
The emitter header consists of two output ports which the PC can use to emulate
“learned” infrared commands in order to control external electronic hardware.
Customers are required to buy or create their own interface modules to plug into Intel
Desktop Boards for this feature to work. These interface modules may be included in
some boxed versions of DX38BT boards.
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Intel Desktop Board DX38BT Technical Product Specification
1.10 Audio Subsystem
The board supports the Intel High Definition audio subsystem based on the
IDT STAC9274D audio codec. The audio subsystem supports the following features:
• Advanced jack sense for the back panel audio jacks that enables the audio codec to
recognize the device that is connected to an audio port. The back panel audio
jacks are capable of retasking according to user’s definition, or can be
automatically switched depending on the recognized device type.
• Stereo input and output for all back panel jacks
• Line out and Mic in functions for front panel audio jacks
• A signal-to-noise (S/N) ratio of 90 dB
1.10.1 Audio Subsystem Software
Audio software and drivers are available from Intel’s World Wide Web site.
For information about Refer to
Obtaining audio software and drivers Section 1.3, page 15
1.10.2 Audio Connectors
The board contains audio connectors and headers on both the back panel and the
component side of the board. The component-side audio connectors include the
following:
• Front panel audio (a 2 x 5-pin header that provides mic in and line out signals for
front panel audio connectors)
• High Definition (HD) Audio Link header (a 2 x 8-pin header for S/PDIF) used for
HDMI Video cards
• S/PDIF audio connector (a 1 x 3-pin header) can be used for HDMI Video cards
that do not work with the HD Audio header
The functions of the back panel audio connectors are dependent on which subsystem
is present. The 8-channel (7.1) audio subsystem is described in Section 1.10.3.
For information about Refer to
The locations of the front panel audio header, HD Audio Link header, and
S/PDIF audio connector
The signal names of the front panel audio header Table 11, page 47
The back panel audio connectors Section 2.2.1, page 43
Figure 11, page 45
24
Product Description
1.10.3 8-Channel (7.1) Audio Subsystem
The 8-channel (7.1) audio subsystem includes the following:
• Intel 82801IR (ICH9R)
• IDT STAC9274D audio codec
• Microphone input that supports a single dynamic, condenser, or electret
microphone
The back panel audio connectors are configurable through the audio device drivers.
The available configurable audio ports are shown in Figure 4.
Item Description
A Surround left/right channel audio out/Retasking Jack
B Center channel and LFE (subwoofer) audio out
C Line in
D Line out
E Mic in
F S/PDIF Digital Audio Out (Optical)
Figure 4. Back Panel Audio Connector Options
For information about Refer to
The back panel audio connectors Section 2.2.1, page 43
25
Intel Desktop Board DX38BT Technical Product Specification
1.11 LAN Subsystem
The LAN subsystem consists of the following:
• Intel 82566DC Gigabit Ethernet Controller (10/100/1000 Mbits/sec)
• Intel 82801IR (ICH9R)
• RJ-45 LAN connector with integrated status LEDs
Additional features of the LAN subsystem include:
• CSMA/CD protocol engine
• LAN connect interface between ICH9R and the LAN controller
• PCI Conventional bus power management
⎯ ACPI technology support
⎯ LAN wake capabilities
⎯ LAN subsystem software
1.11.1 Ethernet Controller
The Intel® 82566DC Gigabit Ethernet Controller supports the following features:
• PCI Express link
• 10/100/1000 IEEE 802.3 compliant
• Compliant to IEEE 802.3x flow control support
• 802.1p and 802.1q
• TCP, IP, and UDP checksum offload (for IPv4 and IPv6)
• Transmit TCP segmentation
• Full device driver compatibility
• PCI Express power management support
26
Product Description
1.11.2 LAN Subsystem Software
LAN software and drivers are available from Intel’s World Wide Web site.
For information about Refer to
Obtaining LAN software and drivers http://downloadcenter.intel.com
1.11.3 RJ-45 LAN Connector with Integrated LEDs
Two LEDs are built into the RJ-45 LAN connector (shown in Figure 5 below).
Item Description
A Link LED (Green)
B Data Rate LED (Green/Yellow)
Figure 5. LAN Connector LED Locations
Table 4 describes the LED states when the board is powered up and the LAN
subsystem is operating.
Table 4. LAN Connector LED States
LED LED Color LED State Condition
Off LAN link is not established.
Link Green
Data Rate Green/Yellow
On LAN link is established.
Blinking LAN activity is occurring
Off 10 Mbits/sec data rate is selected.
Green 100 Mbits/sec data rate is selected.
Yellow 1000 Mbits/sec data rate is selected.
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