I bought 2 new hdds both from western digital. a 600gb velociraptor and the 2tb wd2001fass. I pulled all the old hdds out ( will worry about backing them up later). Installed the 600gb drive as the boot drive, got win7 x64 installed and everything was working great.
When I tried to install the 2tb drive it is not detected in bios or windows. I have tried changing the sata port, using the jumper to force 1.5gb/s. I also have an external usb adapter for sata drives and it wont load with that either (though it does spin up). Just to make sure that adapter still worked I through one of the old drives on and it loaded right up in windows. I also tried disconnecting the sata cord (since it causes the boot to freeze when auto detecting ahci drives) and connecting it once it gets past that part. When I go into disk management in windows it does show that drive but when I try and initialize it, it says in cannot due to an i/o problem.
I have this all setup with a asus p5b delux, in the past I have had little issues when using different hdds but one of the fixes I had tried with this drive fixed the problem with the others.
Any help is greatly appreciated and if I left out any details that will help solve the problem, please let me know.