MS just released a new Hotfix for its newest child Windows XP...
This update addresses the "Problems When Your Computer with Multiple ATA Drives Enters the S1 Power State" issue in Windows XP, and is discussed in Microsoft Knowledge Base Article 812415. Download now for your computer to be able to enter the S1 power state when it has multiple ATA drives.
812415 - German
812415 - English
812415 - German
812415 - English