SSD freezing Windows 7 problem and fix

Recently I replaced the hard drive to SSD in my laptop Dell XPS 1647 . My choice was  Plextor M 5P Pro 128GB. As the magazine moved the existing drive in place of the optical drive – but that’s another story .

All beautifully and nicely – increase speed visible but … From time to time the system Windows 7 freeze . HDD LED is shining, the system don’t respond . It took a few minutes and occurred several times a day . Very annoying!

I started looking and found that it is responsible: Intel Rapid Storage Technology (RST) . In particular, LPM (Link Power Management) and DIPM (Device Initiated Power Management) . Theoretically, these systems have lower energy consumption SATA devices that support it , but as I can see can have side effects.

It remains to turn them off. RegEdit and go to work 😉Search HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStor\Parameters\Port0 and change keys LPM, LPMDSTATE, DIPM to 0.

If your drive is connected to other port – change suitable keys.

[ HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ services \ iaStor \ Parameters \ Port0 ]

"LPM" = dword: 00000000
"LPMDSTATE" = dword: 00000000
"DIPM" = dword: 00000000

That’s it – have a nice day !

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2 thoughts on “SSD freezing Windows 7 problem and fix

  1. Bob

    Update your Plextor firmware to 1.08 and the problem will be solved. This is a non-destructive firmware upgrade. Worked perfectly and no more hanging.

    Blessings to you!

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