Help choosing PSU

cane_63106

I have a Dell Optiplex 790 (exact model in pic below). I put in a GEFORCE GTX 1050 Ti Low Profile and after a while my power supply seems to have died. I'm trying to replace it, but every time I look up PSU upgrade for the 790, the 790 I have doesn't come up. The 1050 requires at least 300w itself and I just had a H250AD-00 PSU which is only 250w. Which PSUs, the size of the H250AD-00, are able to run my setup? Any help would be greatly appreciated.

TSTonyV

Hello @cane_63106! Welcome to the Community. 

I believe the power supply in these units are a proprietary form factor used by Dell. You may be able to replace it with a TFX form factor power supply, like this one: https://www.microcenter.com/product/457439/solid-gear-350-watt-mtfx-non-modular-power-supply

However, I'm not 100% sure if it will work. Alternatively, you could bring the system to our repair desk at the store and see if our service technicians could order a replacement part.