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Firmware Corruption of Memory During Sleep Transitions

Updated: June 18, 2009

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This paper provides information for system manufacturers and firmware developers about firmware corruption of memory during sleep transitions. During Windows 7 development, multiple Windows-based platforms have encountered memory corruption in the lowest 1 MB of physical memory after resuming from sleep. This document describes the potential root causes of the memory corruption, diagnostic events in Windows 7 that can identify the corruption, and steps to resolve the problem on affected platforms.

This information applies for the following operating systems:
Windows Server 2008 R2
Windows 7

Included in this paper:

•	Overview
•	Firmware Memory Corruption in Previous Versions of Windows
•	Diagnostic Events in Windows 7 and Windows Server 2008 R2
•	Resolution Steps
•	Call to Action

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