Had the ST3120827AS for a year or so, still in warranty. However, I was upgrading one of my pc's at home and this drive had loads of room on it, was fairly new and I've always found Seagates reliable, so I copied loads of pics & family vids to the drive for safe keeping during upgrade, then reformatted and reinstalled stuff onto the drive where the pics and vids had come from.
When I came to plug the drive back in (it's SATA) I found it wasn't recognised in Bios. No panic, I thought, cable's not in right or something. Soon realised that the cable was in and the drive just wasn't spinning up. A month or so back as I found the drie decent and could get a good price, I happened to buy an identical drive. "No problems" I though, "I can switch logic boards." Can't see any burn damage on the old board, no burned smell around, so I don't think it's a power surge.
On to the logic board from the new drive... Firmware the same? Check. P/N the same? Sort of. Config the same? Hmmm, not really...
Anyhow, the drive now spins up, but isn't recognised by the BIOS still. I'm guessing I need to get a logic board a bit closer to my old one to achieve success here. Anyone know what the relevant thing to look for is with this brand of drive? Obviously not just the firmware as that's the same!