Intel DZ68DB User manual

Intel® Desktop Board
DZ68DB
Specification Update
December 2011
Part Number: G31558-001
The Intel®Desktop Board DZ68DB 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 DZ68DB Specification Update
Revision History
Revision Revision History Date
-001 PCI cards errata December 2011
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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 DZ68DB 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 ©2011 Intel Corporation.

Intel Desktop Board DZ68DB Specification Update 3
Contents
Specification Update for the Intel®Desktop Board DZ68DB......4
Terminology ............................................................................................ 5
General Information .................................................................................5
Summary of Changes ............................................................................... 6
Errata.....................................................................................................6

4 Intel Desktop Board DZ68DB Specification Update
Specification Update for the
Intel®Desktop Board DZ68DB
This document is an update to the specifications contained in the Intel®Desktop Board
DZ68DB Technical Product Specification (Order Number: G28726). 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 2nd Generation Intel®Core™ Processor Family Specification Update
(Order Number: 457991) for specification updates concerning the 2nd Generation
Intel®Core™ Processor Family that may apply to the desktop board DZ68DB. 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®6 Series Chipset and Intel®C200 Series Chipset Specification
Update (Order Number: 440377) for specification updates concerning the Intel®Z68
Express Chipset that may apply to the desktop board DZ68DB. 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 DZ68DB 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 DZ68DB Identification Information
AA Revision BIOS Revision Notes
G27985-100 BCZ6810H.86A.0011 1,2
G27985-101 BCZ6810H.86A.0032 1,2
G27985-102 BCZ6810H.86A.0032 1,2
G27985-103 BCZ6810H.86A.0032 1,2
G27985-104 BCZ6810H.86A.0032 1,2
Notes:
1. The AA number is found on a small label on the component side of the board.
2. The Intel®Z68 PCH Express Chipset used on this AA revision consists of the following component:
Device Stepping S-Spec Numbers
82Z68 Platform Controller
Hub (PCH) B3 SLJ4F

6 Intel Desktop Board DZ68DB 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
DZ68DB. 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 Errata
1 Plan Fix PCI cards
Errata
1. PCI cards that utilize a PCI Express* to PCI bridge component may
not work with Intel®Desktop Boards based on the Intel®6 Series
Chipset.
Problem: Intel®Desktop Boards DP67DE, DP67BA, DZ68DB, DH67BL, DH67GD,
DH67CL, DH61SA, DH61CR, DH61BE, and DH61WW do not support PCI add
in cards that utilize a PCI Express to PCI bridge component. A resource
conflict between the affected board and the PCI Express to PCI bridge
component included in some PCI card designs (usually video cards, and
digital video capture cards) results in the PCI card not being recognized by
BIOS and not functioning.
Implication: PCI cards utilizing a PCI Express to PCI bridge chip will not be recognized or
function when plugged into any PCI slot on the affected Intel Desktop
boards.
PCI cards that do not include a PCI Express to PCI bridge chip will operate
normally.
Workaround: None.
Status: This problem may be fixed on future releases of these Intel Desktop Board
products.