This is my first gaming pc. Its a Dell Optiplex 7010, so yeah its an oem but I added a new psu, gpu, fan, new cpu, ssd and another 4gb of ram I got the pc for 20 Euros, the gpu i got from a friend, the psu was around 50 Euros, the i5 3470 and the ram I found in a pc recycling shop so it was free and the ssd was another 20 euros, so about 90 to a 100 Euros The monitor I got from my uncle, the keyboard and mouse from another friend and the logitech headphones were around 40 Euros. If I didn't spell something correctly, Im sorry, Im not from an English speaking country