k4000

I inserted in an old PC the NVIDIA Quadro K4000 but prompts for the power connector needed Is it ok to use: https://www.ebay.com/itm/335284618502?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=igcoh5opqv2&sssrc=4429486&ssuid=9sij7nrcswu&var=&widget_ver=artemis&media=MORE ?

Anybody else having this issue, i keep crashing on every single game with DX error, only game not crashing is Forza horizon 3. Roll back drivers?

Hi, please can someone tell me what to do , I am thinking about buying a pc off easy as they are built but not great but there cheap I want a decent gaming pic 1080p I want to play the new rust not the old one, do I build my self or buy one? Iv never built one before only replaced graphic card...