https://community.hpe.com/t5/operating-system-microsoft/problem-with-p400-controller/m-p/4564292#M12008 I have a BL680c which is booting from SAN and running Windows 2008R2. The OS and hardware are fine but the internal p400 array controller will not start and from Windows device manager displays 'error code 10' device cannot start. The server was ok running 32bit Windows 2008 so I know that the hardware is ok. I have updated firmware to 8.60 and the server is running all of the latest drivers so I'm looking for inspiration. Thu, 14 Jan 2010 11:51:46 GMT Colin Page 2010-01-14T11:51:46Z https://community.hpe.com/t5/operating-system-microsoft/problem-with-p400-controller/m-p/4564292#M12008 I have a BL680c which is booting from SAN and running Windows 2008R2. The OS and hardware are fine but the internal p400 array controller will not start and from Windows device manager displays 'error code 10' device cannot start. The server was ok running 32bit Windows 2008 so I know that the hardware is ok. I have updated firmware to 8.60 and the server is running all of the latest drivers so I'm looking for inspiration. Thu, 14 Jan 2010 11:51:46 GMT https://community.hpe.com/t5/operating-system-microsoft/problem-with-p400-controller/m-p/4564292#M12008 Colin Page 2010-01-14T11:51:46Z https://community.hpe.com/t5/operating-system-microsoft/problem-with-p400-controller/m-p/4564293#M12009 HP found the answer, disable the HBAs and update the firmware on the P400 then re-enable the HBAs. Thu, 21 Jan 2010 10:00:54 GMT https://community.hpe.com/t5/operating-system-microsoft/problem-with-p400-controller/m-p/4564293#M12009 Colin Page 2010-01-21T10:00:54Z