I had a Seasonic FOCUS GX-550W PSU powering a new system I build with a Gigabyte AORUS X570 Elite Wifi Pro motherboard, a Ryzen 5 3600, 64GB DDR4, MSI GeForce GTX 1660 SUPER , 2x M.2 nVME drives and a 5 SSDs (phanteks Eclipse P500A case). This worked beautifully for 2 years, until last week...