The Intel® Desktop Board DX48BT2 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 DX48BT2 Specification Update.
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Revision History
Revision Revision History Date
-001 First release of the Intel® Desktop Board DX48BT2 Technical Product
Specification
This product specification applies to only the standard Intel® Desktop Board DX48BT2 with BIOS
identifier BTX3810J.86A.
Changes to this specification will be published in the Intel Desktop Board DX48BT2 Specification
Update before being incorporated into a revision of this document.
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desktop boards are evaluated as Information Technology Equipment (I.T.E.) for use in personal
March 2008
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deviate from published specifications. Current characterized errata are available on request.
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This Technical Product Specification (TPS) specifies the board layout, components,
connectors, power and environmental requirements, and the BIOS for the
®
Intel
Desktop Board DX48BT2.
Intended Audience
The TPS is intended to provide detailed, technical information about the Intel Desktop
Board DX48BT2 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 DX48BT2
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.
# Used after a signal name to identify an active-low signal (such as USBP0#)
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
Figure 1 shows the location of the major components on board DX48BT2.
Figure 1. Major Board Components
Table 2 lists the components identified in Figure 1.
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Product Description
Table 2. Components Shown in Figure 1
Item/callout
from Figure 1 Description
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 82X48 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
Figure 2 is a block diagram of the major functional areas of the board DX48BT2.
Figure 2. Block Diagram
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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 DX48BT2 http://www.intel.com/products/motherboard/DX48BT2/index.htm
Desktop Board Support http://support.intel.com/support/motherboards/desktop/DX48BT2
Available configurations for the
Desktop Board DX48BT2
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=2912