Intel G31 EXPRESS CHIPSET - SPECIFICATION Specification
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Intel
G31/P31 Express Chipset
Specification Update
— For the Intel
(GMCH) and Intel
February 2008
®
Notice: The Intel
G31/P31 Express Chipset 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.
®
82G31 Graphics and Memory Controller Hub
®
82GP31 Memory Controller Hub (MCH)
Order Number: 317496-003
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Summary of Contents for Intel G31 EXPRESS CHIPSET - SPECIFICATION
- Page 1 ® Intel G31/P31 Express Chipset Specification Update ® — For the Intel 82G31 Graphics and Memory Controller Hub ® (GMCH) and Intel 82GP31 Memory Controller Hub (MCH) February 2008 ® Notice: The Intel G31/P31 Express Chipset may contain design defects or errors known as errata which may cause the product to deviate from published specifications.
- Page 2 Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order. Intel and the Intel logo are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.
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Page 3: Table Of Contents
Contents—3 Series Chipsets Contents Preface ........................5 Summary Tables of Changes..................6 Identification Information ..................8 Errata ........................9 Specification Changes....................10 Specification Clarifications ..................11 Documentation Changes ..................12 Specification Update... -
Page 4: Revision History
3 Series Chipsets—Revision History Revision History Revision Description Date • -001 Initial Release July 2007 • Added Errata #2 -002 August 2007 • Added B0 stepping details -003 February 2008 § § Specification Update... -
Page 5: Preface
317495-001 Nomenclature Errata are design defects or errors. These may cause the Intel 82G31/82P31 (G)MCH behavior to deviate from published specifications. Hardware and software designed to be used with any given stepping must assume that all errata documented for that stepping are present on all devices. -
Page 6: Summary Tables Of Changes
The following tables indicate the errata, specification changes, specification clarifications, or documentation changes which apply to the Intel 82G31/82P31 (G)MCH product. Intel may fix some of the errata in a future stepping of the component, and account for the other outstanding issues through documentation or specification changes as noted. -
Page 7: Specification Changes
Steppings Status Errata No Fix Graphics Debug Reset Visual Corruption with Integrated Graphics & Intel® Flex Memory Technology No Fix Enabled using Microsoft* Windows Vista* Specification Changes Specification Changes There are no specification changes in this revision of the specification update. -
Page 8: Identification Information
Identification Information Identification Information Component Identification via Programming Interface ® The Intel G31 Express Chipset may be identified by the following register contents. Stepping Vendor ID Device ID Revision ID Notes ® 8086h 29C0h Intel G31 Express Chipset ® 8086h... -
Page 9: Errata
Visual Corruption with Integrated Graphics & Intel Flex Memory Technology Enabled Using Microsoft Windows Vista* Problem: Visual corruption is observed with the Intel® G31 GMCH using new Microsoft Windows Vista* paging model when Intel® Flex Memory Technology is enabled in the Dual Channel Asymmetrice Configuration Implication: Visual graphics corruption on the display when running 3D applications. -
Page 10: Specification Changes
Specification Changes Specification Changes There are no specification changes in this revision of the specification update. Specification Update... -
Page 11: Specification Clarifications
Specification Clarifications Specification Clarifications There are no specification clarifications in this revision of the specification update. Specification Update... -
Page 12: Documentation Changes
Documentation Changes Documentation Changes There are no documentation changes in this revision of the specification update. § § Specification Update...
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