Intel DH55HC Manuel technique
Intel® Desktop Board
DH55HC
Specification Update
March 2011
Order Number: E90199-005US
The Intel®Desktop Board DH55HC may contain design defects or errors known as errata, which may cause the product to deviate
from published specifications. Current characterized errata are documented in this Specification Update.
2 Intel Desktop Board DH55HC Specification Update
Revision History
Revision Revision History Date
-001 This document is the first Specification Update for the Intel®Desktop
Board DH55HC January 2010
-002 Update to the General Information section April 2010
-003 Update to the General Information section July 2010
-004 Update to the General Information section December 2010
-005 Update to the Specification Update Section March 2011
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Intel may make changes to specifications and product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked “reserved”
or “undefined”. Intel reserves these for future definition and shall have no responsibility whatsoever for
conflicts or incompatibilities arising from future changes to them.
The Intel®Desktop Board DH55HC 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
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Copyright ©2010, 2011 Intel Corporation.
Intel Desktop Board DH55HC Specification Update 3
Contents
Specification Update for the Intel®Desktop Board DH55HC
Terminology ............................................................................................ 5
General Information .................................................................................5
Summary of Changes ............................................................................... 6
4 Intel Desktop Board DH55HC Specification Update
Specification Update for the
Intel®Desktop Board DH55HC
This document is an update to the specifications contained in the Intel®Desktop Board
DH55HC Technical Product Specification (Order Number: E82983). It is intended for
hardware system manufacturers and software developers of applications, operating
systems, or tools. It will contain Specification Changes, Errata, Specification
Clarifications, and Documentation Changes.
Refer to the Intel®Core™ i7-800 and Intel ®Core™ i5-700 Desktop Processor Series
Specification Update (Order Number: 322166) as well as to the Intel®Core™i5-600,
Intel®Core™i3-500 Desktop Processor Series and Intel®Pentium®Processor G6950
Series Specification Update (Order Number: 322911) for specification updates
concerning supported processors that may apply to the desktop board DH55HC. Unless
otherwise noted in this document, it should be assumed that any Processor errata for a
given stepping are applicable to the Altered Assembly (AA) revision(s) associated with
that stepping.
Refer to the Intel®5 Series Chipset and Intel®3400 Series Chipset Specification
Update (Order Number: 322170) for specification updates concerning the Intel®H55
Express Chipset that may apply to the desktop board DH55HC. Unless otherwise noted
in this document, it should be assumed that any Platform Controller Hub errata for a
given stepping are applicable to the Altered Assembly (AA) revision(s) associated with
that stepping.
Intel Desktop Board DH55HC Specification Update 5
Terminology
Specification Changes are modifications to the current published specifications.
These changes will be incorporated in the next release of the specifications.
Errata are design defects or errors. Characterized errata may cause the desktop
board behavior to deviate from published specifications. Hardware and software
designed to be used with any given Altered Assembly (AA) and BIOS revision level
must assume that all errata documented for that AA and BIOS revision level are
present on all desktop boards.
Specification Clarifications describe a specification in greater detail or further
highlight a specification’s impact to a complex design situation. These clarifications
will be incorporated in the next release of the specifications.
Documentation Changes include typos, errors, or omissions from the current
published specifications. These changes will be incorporated in the next release of the
specifications.
General Information
Basic Desktop Board DH55HC Identification Information
AA Revision BIOS Revision Notes
E70933-500 TCIBX10H.86A.0026 1,2
E70933-501 TCIBX10H.86A.0027 1,2
E70933-502 TCIBX10H.86A.0027 1,2
E70933-503 TCIBX10H.86A.0032 1,2
E70933-504 TCIBX10H.86A.0035 1,2
E70933-505 TCIBX10H.86A.0037 1,2
Notes:
1. The AA number is found on a small label on the component side of the board.
2. The Intel®H55 Express Chipset used on this AA revision consists of the following component:
Device Stepping S-Spec Numbers
82H55 Platform Controller Hub (PCH) B3 SLGZX
6 Intel Desktop Board DH55HC Specification Update
Summary of Changes
The following table indicates the Specification Changes, Errata, Specification
Clarifications, or Documentation Changes that apply to the Intel®Desktop Board
DH55HC. Intel intends to fix some of the errata in a future revision of the desktop
board, and to account for the other outstanding issues through documentation or
specification changes as noted.
The following notations are used in the table:
Doc: Document change or update that will be implemented.
Plan Fix: This erratum may be fixed in a future revision of the desktop board, driver, or BIOS.
Fixed: This erratum has been previously fixed.
No Fix: There are no plans to fix this erratum.
Shaded: This erratum is either new or modified from the previous version of the document.
No. Plans Specification Changes
1 Doc Updated Section 2.2.2.2 and Section 2.2.2.6 of the Technical Product Specification as
shown in the Specification Changes Section below.
No. Plans Errata
There are no characterized erratum for this product.
Specification Changes
The Specification Changes listed in this section apply to the Intel®Desktop Board
DH55HC Technical Product Specification (Order Number E82983).
1. Updated Section 2.2.2.2 Add-in Card Connectors and Section 2.2.2.6 Front Panel
USB Headers of the Intel Desktop Board DH55HC Technical Product Specification as
shown below.
2.2.2.2 Add-in Card Connectors
The board has the following add-in card connectors:
•One PCI Express 2.0 x16: this connector supports simultaneous transfer speeds of
up to 8 GB/s of peak bandwidth per direction.
•Two PCI Express 2.0 x1: each of these connectors support simultaneous transfer
speeds of up to 250 MB/s (2.5 GT/s) of peak bandwidth per direction.
•Three Conventional PCI (rev 2.3 compliant) connectors.
Intel Desktop Board DH55HC Specification Update 7
2.2.2.6 Front Panel USB Headers
Figure 12 is a connection diagram for the front panel USB headers.
NOTES
•The +5 V DC power on the USB headers is fused.
•Use only a front panel USB connector that conforms to the USB 2.0 specification for
high-speed USB devices.
•USB Header 2 (FP USB 2) has Pin 10 routed to the HDD LED to support specific
USB SSD devices. Connecting any device to this header, that has any connection to
Pin 10, may cause the HDD LED to behave erratically or stay on continuously.
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