I read somewhere else that someone had tried a 500Gb HDD and a 1Tb HDD. The former worked ok but the latter didn't, which was assumed to be due to the HDD requiring more voltage than the other ones. I suggest you take a look at the 160Gb HDD and see what its specs are, then order a new one which won't tax the internal power lines too much. It would be helpful if you posted the 160Gb specs here for others to see.
Phinny, August 2011