I want to add a 7870 graphics card but as as in most off the shelf PCs the PSU sucks and cant support the card. To add cherry to the icing, the connectors on the PSUs are not standard 24/20 pin. They are 12 pin connectors which means that I'm not going to get a normal aftermarket power supply...
I also have this PC (Core i5 4430, 12GB, 2TB) and I'm very curious how did you end up upgrading the power supply. I have a new 7870 and a new EVGA 500W power just sitting there. I'd really appreciate any help I can get.