Hi people and ty in advice, basically lately i started having issues with my old bad psu thermaltake smart se, so i replaced it with a cx550m and it all seemed to go well at first, the pc was booting up and all but i kept being redirected to the bios and i got the opportunity to see that it was because my 2 hdd were not detected, i tryied chaning sata slots checking cables and things like these but my hard drives still wont get detected in the bios, i even update the bios with no luck, i even have the suspect that the hard drives are not spinning at all since i cannot sense anything holding them in my hands. Are they damaged from my old psu ? do i really have to think i have to spend more money now after the psu, or is it a mobo or software issues ? Resetting CMOS did not help.