hi guru,

i got IBM System X model: WD2502ABYS-23B7A0. When i connect to PC, it spins well(sounds fine and not click) but PC bios cannot detect it. it spins for while then stop. when i connect to imager(Deepspar), it also cannot detect. does anyone can tell me it's firmware or mechanical problem?

Could be either to be honest.

If you're 100% sure there are no unusual noises (like quiet ticking or "sweeping") then firmware is the more likely culprit.

You'll need pc3k or similar to solve that.

_________________
PC Image Data Recovery
http://www.pcimage.co.uk

New!! HDD-PCB.COM for all your PCB and donor HDD requirements!

You need right tools to handle this drive.
Just by what you have posted no one can tell you whether its a FW or Mechanical or a Electronic Fault. Max you can confirm FW problem by ROM swap.

According to your description that's most likely either heads or SA problem.

And further remote diagnostics is more of a guessing, indeed.