i5-3570K at stock. Temps... It really depends with what settings. But let's do this for now with all system fans at 100% - that means 1800RPM for the 9.2cm CPU fan, 1500RPM for the 12cm CPU fan and max speeds for the 12cm and 14cm Air Penetrators i use as outtakes from the system (there is no intake in my system, air comes through the holes in bottom and back. With these settings CPU idles at 32C according to the ASUS tools, 30-33C according to Speedfan. GPU is at 36C, ambient temp is around 25C. OCCT, Large Data Set, after 3 minutes it is at 53-55C with the CPU and stays there. The primary issue is the heat the GPU can make when gaming, but that really depends on your use-case scenario. My GTX570 heats like crazy and dumps all heat in the case, so that is the wost case possible. The top of the case is open, there are holes on one of the side panels. I don't think you can run in cooling issues in Prodigy. mini DTX ? There is one Zotac Atom board, but mDTX is pretty much pointless. You get two PCI-E slots, one of them will be blocked by the dual slot card in the most cases anyway. So what is the point .