Dell power supplies have 140 - 225W combined power on the 3.3v/5v rails Power supplies are not a single rail nor a single spec of watts. Thats why EVGA 700BR 100-BR-0700-K1 is bare minimum recommended unit. [IMAGE] Smaller units even from EVGA only have 90 to 130W combined on those rails. Some vendors units even 1000W have insufficient power on those rails. [URL] [URL] Also keep in mind that power supplies like video cards are counterfeited so only buy retail or from trusted vendor. EVGA, Corsair, etc  will not fix or cover damage from fake power supplies. GAMEMAX GM-700 only has 20Amps not 25Amps and 120w not 140W to 225w Dell 875w has 32 Amps on 5v and 30 Amps on 3.3v 225w max 5vsb on this unit is 4 Amps whereas Game Max is 2.5 Amps The 3.3v/5v combined power goes UP as the overall power goes up. Take note of INTEL spec for 300W [IMAGE] [IMAGE][IMAGE][IMAGE]  
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?
Power supply