1 Reply Latest reply on Jul 20, 2012 12:56 PM by fluoxethine

    iaStor error Event ID 5 on Windows 7 64 bit with eSATA external drive




      I'm encountering a huge problem with my HP ProBook 4720s notebook.


      I'm trying to use an external drive through eSATA port. When I connect it, Windows often freezes/crashes and numerous 'iaStor' Evetn ID 5 errors appear in the System event log - "A parity error was detected on \Device\Ide\iaStor0":



      The drive also disconnects itself randomly.


      This problem is known for almost 5 years now (started in Vista systems):



      Some solutions over the internet suggest to turn off write caching for the hard drive. However this degrades drive's performance significantly. Some say also that this problem is Windows 7 64 bit specific.


      I've updated Intel® Rapid Storage Technology to the latest version, however with no luck.


      My external drive is Western Digital Caviar Black 1.5TB (model WD1502FAEX) and it is connected via Welland ME-601J docking station using eSATA cable. This drive works fine with another USB 2.0 only Welland enclosure.


      Can you please help me in solving this issue?


      Kind regards