Question Aspire XC-885 PSU upgrade

[coffeeholicwench]

Hi there, hope I'm asking in the right place.
I'm trying to help my friend update a couple things on the computer he just bought - an Acer Aspire XC-885 : https://www.acer.com/ac/en/US/content/model/DT.BAQAA.001

The main thing being upgrading to an actual video card, but for anything remotely decent, the system also needs a PSU upgrade to at least 350W

I need to know 3 things, hoping someone has the answer here:

1. can the motherboard on this machine even handle anything higher than a 220W PSU?
2. how much higher?
3. does anyone know of a slimline 350W that will fit this box with all the necessary plugs?

I am, unfortunately, quite far away from my friend and do not have access to the unit, he's misplaced the manual, and my attempts to contact ACER have been about futile. I'm hoping someone familiar with their systems has an answer.

 

[Dark Lord of Tech]

The connections on the board and PSU are proprietary.

 

[coffeeholicwench]

The connections on the board and PSU are proprietary.

well that bites... I was afraid of that. If anyone has any suggestions (aside from "throw it out, start over") I'm open. Thank you much