HP Elitedesk 800 G3 SFF, Quad I5 6500, 3.30 GHz, Intel HD 530, 512gb, 16Gb DDR4

I bought this pc refurbished and now I'm looking for an upgrade. A Few things where upgraded in this computer.

It was upgraded from 8GB DDR3 Ram to 16GB DDR4 Ram. And I ended up replacing the original 256GB SSD to a LEXAR 512GB SSD. I had a few ideas to upgrade it again because of the amount of computer work I'm doing, but I would rather it off my hands so I can try and find a better motherboard board to build off of.

---