Sunday, December 31, 2017
Intel� Matrix Storage Manager Possible Issues With Windows Vista and Intel� RAID
Intel� Matrix Storage Manager Possible Issues With Windows Vista and Intel� RAID
Problem:
The following issues may occur on Windows Vista* with a supported Intel� RAID Controller hub:
�Inability to install Windows Vista (i.e. system halts during installation)
�Performance degradation
�Timeout errors reported by iastor or iastor(v) in Microsoft Event Viewer*
Discussion:
A change was made by Microsoft* in the Windows Vista setup process. The result of this change is that the Intel� Matrix Storage Manager Link Power Management (LPM) registry settings that were intended for mobile installations are added for desktop installations as well. These LPM registry settings are added for both the Intel� Matrix Storage Manager RAID driver on the Windows Vista installation disk, as well as for any drivers added during the installation process.
Various desktop Serial ATA devices such as hard drives and CD/DVD drives have been reported that do not comply with the Serial ATA LPM device specification and display erratic behavior when LPM is enabled.
Because the setup change means that LPM is enabled by default for all Windows Vista platforms, using a device that does not completely follow the specification may result in one of the listed issues.
A list of these devices is not available at this time.
Resolution:
If you are experiencing installation issues, one of the following workarounds may help resolve the issue:
� If available, install updated firmware for the device.
� Switch to IDE mode in the system BIOS. Note: See your BIOS manufacturer for instructions on how to do this.
� Attach the device(s) to ports 3-5 on the Intel� 82801HR/HH/HO I/O controller hub (ICH8R) or port 3 on the Intel� 82801GR/GH I/O controller hub (ICH7R)
If you are experiencing performance degradation or timeout errors, one of the following workarounds may help resolve the issue:
� If available, install updated firmware for the device.
� Delete the iastor(v) Parameters registry key by using the following steps:
1. Go to Start � Search.
2. Type in RegEdit and hit the Enter key.
3. Go to HKEY_LOCAL_MACHINESystemCurrentControlSetServicesiaStor(v).
4. Right-click on the Parameters key under iaStor(v) and select the Delete option.
WARNING: The registry editor is a powerful tool which requires precision when making modifications. There is no method of automatically undoing mistakes. If you do not feel comfortable performing these steps you may want to have someone perform them for you. Intel is not responsible for errors made by the user during modification of the registry.
