Intel D925XEBC2 Specification

D925XEBC2 Specification Update Release Date: March 2005 Order Number: C94211-004 The Intel® Desktop Board D925XEBC2 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.

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PREFACE................................................................................................................................................... vi Specification Update for the Intel® Desktop Board D925XEBC2 GENERAL INFORMATION ..........................................................................................................................3 ERRATA ......................................................................................................................................................5

v REVISION HISTORY Date of Revision Version Description November 2004 -001 This document is the first Specification Update for the Intel® Desktop Board D925XEBC2. December 2004 -002 Added Erratum 1. February 2005 -003 Added Erratum 2. March 2005 -004 Added Erratum 3.

vi PREFACE This document is an update to the specifications contained in the Intel ®Desktop Board D925XEBC2 Technical Product Specification (Order number C90152). 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 ® Pentium® 4 Processor Specification Update (Order number 249199) for specification updates concerning the Intel Pentium 4 processor and that may apply to the desktop board D925XEBC2. 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 ® 925X Express Chipset Specification Update (Order Number 301465) for specification updates concerning the 82925X MCH Controller and that may apply to the desktop board D925XEBC2. Unless otherwise noted in this document, it should be assumed that any MCH errata for a given stepping are applicable to the Altered Assembly (AA) revision(s) associated with that stepping. Refer to the Intel ® IO Controller Hub 6 (ICH6) Family Specification Update (Order Number 301474) for specification updates concerning the 82801ER I/O Controller Hub and that may apply to the desktop board D925XEBC2. Unless otherwise noted in this document, it should be assumed that any ICH 6 errata for a given stepping are applicable to the Altered Assembly (AA) revision(s) associated with that stepping. Nomenclature 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 D925XEBC2’s 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.

3 GENERAL INFORMATION Basic Desktop Board D925XEBC2 Identification Information AA Revision BIOS Revision Notes C85639-204 CV92510A.86A.0338 1-5 NOTES: 1. The AA number is found on a small label on the component side of the board. 2. The 82925XE Chipset kit used on this AA revision consists of two components as follows: Device Stepping S-Spec Numbers 82925XE MCH B2 SL84Z 82801FR ICH6 B2 SL7W7 3. Refer to the Intel ® Pentium ® 4 Processor Specification Update (Order Number 249199) for errata related to the Pentium 4 processor and that may apply to the desktop board D925XEBC2. 4. Refer to the Intel ® 925X Express Chipset Specification Update (Order Number 301465) for errata related to the 82925X MCH that may apply to the desktop board D925XEBC2. 5. Refer to the Intel ® IO Controller Hub 6 (ICH6) Family Specification Update (Order Number 301474) for errata related to the 82801FB I/O Controller Hub that may apply to the desktop board D925XEBC2.

4 Summary Table of Changes The following table indicates the Specification Changes, Errata, Specification Clarifications, or Documentation Changes that apply to the Intel® Desktop Board D925XEBC2. 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. This table uses the following notations: CODES USED IN SUMMARY TABLE Doc: Document change or update that will be implemented. PlanFix: This erratum may be fixed in a future revision of the desktop board, driver, or BIOS. Fixed: This erratum has been previously fixed. NoFix: 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 Alert Standard Format (ASF) is non-functional 2 Plan Fix BIOS corruption may occur if power is interrupted during the BIOS flash procedure, resulting in the system’s inability to POST 3 Plan Fix Wake On LAN may not function after loss and restore of AC power

5 ERRATA 1. Alert Standard Format (ASF) is Non-Functional PROBLEM: BIOS and device driver support is currently not implemented to support Alert Standard Format (ASF). IMPLICATION: ASF, an interface that provides access and manageability in OS-absent environments, is currently not supported. WORKAROUND: None. STATUS: This erratum may be fixed in a future BIOS and driver revision. 2. BIOS Corruption May Occur if Power is Interrupted During the BIOS Flash Procedure, Resulting in the System’s Inability to POST PROBLEM: Power interruption during BIOS flash process may corrupt certain non-bootblock areas in the Firmware Hub. IMPLICATION: If power fails during the flash process, the new BIOS image should be preserved. In some instances, a power failure during the flash process may instead cause corruption and not save the new image to the Firmware Hub resulting in a no POST condition; a POST card will indicate a halt at POST code D7h. WORKAROUND: If power fails during the BIOS flash process and a no POST condition exists upon subsequent boot, implementing the BIOS flash recovery procedure will return the BIOS to a stable state. STATUS: This erratum may be fixed in a future BIOS revision. 3. Wake On LAN May Not Function After Loss and Restore of AC Power PROBLEM: If AC power is removed, Wake On LAN may not function until the LAN circuit is re-initialized. The sequence of events is as follows: • AC power removed (AC power cord disconnected, for example) • AC power restored. +5V Standby voltage is re-applied to the board • Wake On LAN may not be functional • Switch power on • Switch power off to put system back into Standby mode (S5 state) • Wake On LAN functionality restored IMPLICATION: Wake on LAN will not function if AC power is interrupted. WORKAROUND: In the BIOS Setup program, set After Power Failure to “Power On” in the Power Menu. STATUS: This erratum may be fixed in a future BIOS revision.