I have purchased a ASUS K20CE style pc for my son, which has turned out not to have enough "omph" for playing even modest modern 3D games.
I went out and got a GeForce GT710 card for the PC (which matched one of the options that I could have ordered the PC with to begin with) but was faced with the problem, that the card did not fit the cabinet (times have changed much since I built my last PC it turns out!)
I guess the motherboard is a mini ITX one. It has a single PCI Express slot, and the cabinet is slim. I have my eyes on some alternative GPUs, that may fit the machine, but I hesitate to order as I realise the system has an external power adapter of at most 90W. Most GPU cards advertise 300-400W power requirements, so I am starting to wonder if it will work at all.
Does anybody have experience with such an upgrade or advice? The goal is not to make a monster gaming PC, but just a modest budget one.