Firmware Corruption of Memory During Sleep Transitions

Overview

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 paper 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.