Looking to upgrade PC power supply

[djt-dog]

I just got this pc as a gift recently: https://support.hp.com/us-en/document/c05591677

I want to upgrade the power supply to 300w+ and add a dedicated GPU, I've been looking at GTX 750 TI. I was wondering if this: https://www.outletpc.com/wr4972-replace-power-rp-tfx-420-tfx-12v-420w-psu.html?gclid=Cj0KCQjwqPDaBRC6ARIsACAf4hBAu_NB0D12_8Xm0LFRfawjl_MsO4d7aYht8FIdwKbKz0hrbNSmxqMaAoXxEALw_wcB would fit my system?

I am looking to play games like League of Legends, World of Warcraft, and other older PC games.

 

[popatim]

HP normally uses proprietary power supplies so that one is not likely to work at all.
Sometimes HP also limits the Slimline series to 25w on the PCIE slot. I have not been able to confirm this for this model as I am unable to locate a manual for it.