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 !