[Ch28]

I've had this drive for a couple of years now and I've never had issues with it before.

I have about a good 400gb of stuff loaded on there (music, pictures, work etc) and it's not showing up anymore.

I checked disk management and it only shows my C: disc and E: disc with no mention of D: I didn't hear any sort of weird noises (clicking) or have any issue loading files off that drive prior to this.

Is there anyway of fixing this or am I SOL? :(

[Razor Ramon HG]

1. Did you try using a different SATA/IDE cable and/or slot?
2. Did you try sticking it into an enclosure or another computer?

You didn't mention any diagnostic attempts in the post, so I'd advise you to try those.

[Ch28]

Took out my secondary backup drive and put this drive in its place and it still didn't show up in bios.

Is there anything else I can do to start it up so I can copy the important files over?

[InvisibleSoul]

If it's not recognized in BIOS, you're pretty much screwed. You could try the freezer trick, but that's just about the last resort.

[Razor Ramon HG]

You can try recovering it by replacing the controller board of the hard drive as well. It's a tad expensive seeing as you'll need a working drive that is identical in the model.