Internal HD not recognized!!!

I purchased the hd from mpcstuff, I inserted it properly but my MPC se will not recognize the Hard Drive.

Someone Please help!!

Ok so I spoke to the gentleman at MPCSTUFF, and he says it could be a main PCB issue, which they dont have the parts for. since its discontinued.

now my question is, would you guys keep an MPC 2500 if the HD didn't work?