Friend of mine bought a GTX 1050ti replacement for his old GT740 he asked me if his PSU can support it it was 600w that's the only thing he told me and I said yes bcuz I thought his supply had all of the connectors his gpu arrived I had to installed when everything was done we found out that his supply doesn't have a 6pin , and we re-installed his old gt740 and now we gotta either buy a new PSU with a 6pin or is it safe to use molex to 6pin ?