Swapped out 2nd sata1 drive from dell (maxtor again 250 gb different model) = put it in abit new pc-works fine.
so - im just going to put the 300gb hd in the dell-reformat windows, and just stick with this 250gb instead.
RYZEN 5 2600|RADEON 570| |ASRock X370 Killer|DDR4@2800Mhz||Corsair SPEC-05 Case|AOC G2590FX 24.5''144hz 1ms|