SSD wont secure erase on USB or DISC

I have recently had a failure of BIOS and backup BIOS on my Gigabyte GA-H77M D3H rev1.0 motherboard, now I've purchased a 2nd hand Intel (branded), 7 series board, to replace it, now in anticipation, I thought I would secure erase the SSD now in prep

now first I attached it using a SATA-to-USB3 converter cable into a 4 way powered port and it picked up and can be browsed, but isn't called SAMSUNG SSD - Micron TECH or something...first I installed the latest edition of SM which again picked it up as TECH as the name of the drive but could NOT do anything with it...so I directly plugged it into the laptop and the result was the same...one can access all files but SM can only see this as a "TECH" drive not Samsung 850 and ALL options a greyed out - now when it first happened I used my secure erase disc which I've used before on the same drive and this time it said the drive was "NOT COMPATIBLE"

so just now I installed version 4.5 of SM as I remember having issues with later versions but the result was the same... it could only benchmark and it benchmarked like and SD Card!!

can anyone tell me how to resolve this and check if the drive is broken? I hope not otherwise im gunna have to pull out more money

i got it in 2013 and on last check 0 problems and EXCELLENT health accord to an SSD reporting tool

mind the testing laptop is very poor 2Gb RAM, 2 core Celeron, 2Gb spare room on the built eMMC from 21Gb - nothing but chrome and office 365 installed - im loaning it until i get my PC fixed or replaced...

any help would be greatly appreciated

I know you say the laptop has only Chrome and Office365 installed - however what is the OS please