New
#11
Try the Seagate Seatools test. If that doesn't work, then try the Hitachi Drive Fitness Test
I'm pretty sure that the Samsung drive is dying. Backup anything important on it IMMEDIATELY!!!
There are many different ways that a hard drive can die - and some of them will prevent the system from booting to a hard drive (or even a memtest) bootable disk.
At work if we can't get a test done on a drive we replace it.
So, I'd suggest trying another hard drive if you can't get a test to run. If that new hard drive works OK, then you've proven that the Samsung drive is dying.