A friend has Maxtor drive, model 5T040H4, that is failing and he asked me to take a look. According to Maxtor this drive should be 40 gigs but in the bios it only shows up as 20 gigs. I tried it in several different computers that I know support large drives but no change. And the bios reports the drive fails so I cant access it at all. I tried maxtor diagnostics but all the error codes are listed on Maxtors site as being invalid error codes?!? what is going on with this drive?