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Description
The following issues may occur on Windows Vista* with a supported Intel® RAID controller hub:
- Inability to install Windows Vista (in other words, system halts during installation)
- Performance degradation
- Timeout errors reported by iastor or iastor(v) in Microsoft Event Viewer*
Solution
Install Intel Matrix Storage Manager version 7.5 or later. These versions workaround this issue by disabling Link Power Management (LPM).
If you are experiencing installation issues, you can also use one of the following additional workarounds:
- If available, install updated firmware for the device.
- 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)
- Switch to IDE mode in the system BIOS.
| Note |
This change will disable RAID functionality.
Contact your BIOS manufacturer for instructions on how to switch to IDE mode. | |
Cause
A change was made by Microsoft* in the Windows Vista setup process. The result of this change is that the Intel® Matrix Storage Manager 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.
Related Topic:
How do I install the RAID driver during Windows Vista* installation?
Operating System:
| Windows Vista* 64, Windows Vista* 32 |
This applies to:
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