Are you sure that you have XFX TS 500W PSU? Since in XFX lineup, there is no TS 500W unit. What there is, is XF 500W and TS 550W.
For new PSU, i suggest getting any Seasonic unit, in 500W range. E.g: M12II-520 EVO, G-550, Focus 550 or Focus+ 550,
pcpp: https://pcpartpicker.com/products/compare/TgW9TW,DPCwrH,bkp323,KmgzK8/
Focus and Focus+ are the newest PSU lines from Seasonic and they come with 10 years of OEM warranty. G and M12II EVO series PSUs come with 5 years of OEM warranty.
All my 3 PCs: Skylake, Haswell and AMD are also powered by Seasonic. Full specs with pics in my sig.