Thank you for posting the smartctl report. I don't see any obvious
problems.
That drive is SATA 3 Gbps. Are your SATA cables marked for 3 Gbps or
faster?
Go through the test, wipe, and re-test process with Seatools Bootable:
https://www.seagate.com/support/downloads/seatools/Thank David and Reco!
data cable isn't marked with 3Gbps, but it works fine with other 300G disk
it's easy to buy sata2 data cable, but does mainboard support sata2?
can't sata2 disk work compatibly in old pc that supports sata1 only?
it's too bad if it can't.
i've left home and stay at other place and can't use problem disk for a long time.