Thank you AsToRoth
My drives do not power down "To many problems with that feature"
And they are both at speed.
And now more with this unusual problem ;
The system is back up and running find on two new 500gig drives
My two old 250gig drives still have the problem.
But if you add them to the system as drive 3 and 4 there is no problem with them, but as soon as you add them as only drives, problem is back DOH
Has to be something in Winblows its self :censored: :censored: windows!
All hardware checks out A OK :takethat:
Thank you all for your input " Mikey Likes it"