Dell 9020 Sff Power Supply Upgrade

Hi i just got a new graphics card for my optiplex 790 sff and it requires 300w power supply.

Dell 9020 sff power supply upgrade.

Check and found no options for 9020 psu upgrade officially from dell. I have a dell optiplex 9020 mini tower and i would like to put a graphics card in it. I am currently looking a the corsair cx500 with a dell optiplex 9020 psu main power 24 pin to 8 pin adapter to allow it to. I was wondering which power supply fits the sff and is 300w or 400w.

If you plan for a gpu upgrade for it better stick to the original 255w psu and choose those low powered low profile display card. Dell optiplex 7010 sff with an intel i5 2500 2x 4gb ddr3 ram gigabyte gt 1030 2gb ddr5 500gb hdd and the regular 240w psu. So i would like to upgrade my gpu to a 2gb gtx 1050 low profile but to do this best i would probably need a 300w psu so since the optiplex 7010 sff doesn t seem to have any upgrade options so i was wondering if i could possibly use a 315w psu from a. I ve recently purchased a used optiplex 9020 and would like to upgrade its power supply and add a video card.

Maybe it s designed this way in order to prevent high powered gpu upgrade causing it unstable and overheat within the little sff. Thx for helping me.