I have done that and it's still the same, unplugged it and tested it in another computer with seagate tools and says An over temperature condition was detected prior to the test starting. the drive is, or has been at 70 degrees C. do you want to continue to the test
On statup in the computer SMART detected it as BAD, so the pink light must mean SMART has been tripped, running test now for bad sectors/blocks and will report back on the result
The drive is a Seagate 1.5TB ST31500341AS