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Disk power management does not work after Service Pack 4.
John Savill
September 29, 1999
1 Min Read
A. After Service Pack 4 is applied the Windows NT operating systemaccesses the disk every 5 minutes which will interfere with disk powermanagement features. This disk access is caused by a time stamp used by theEvent Log service and was intended for NT Server only but has been enabled onWorkstation.
To fix this perform the following:
Start the registry editor (regedit.exe)
Move toHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionReliability
From the Edit menu select New - DWORD value and enter a name ofTimeStampInterval
Double click the new value and set to 0
Close the registry editor
The change should take immediate effect. If you change from 0 to anothervalue then a reboot is required.
See http://support.microsoft.com/support/kb/articles/Q194/7/49.ASPfor more details but this has been fixed in Service Pack 5.
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