I’ve got an optiplex 9010 MT. It’s got an i73770, 32 gb ddr3 ram, gtx1050ti card. 1tb ssd. 6 months ago a bout the card and then a 450 watt psi. Worked fine til recently. Blew the psi, then blew 3 more this past month. Each one of bigger wattage than last. The last one I installed was a 700 watt. Is my problem underpowered psu? Still with a 700 watt unit?