I built a mac mini system a year ago. I maxed the RAM and installed a solid state drive. My intention was to build a low power desktop that I could use off grid while still meeting bare minimum requirements for gaming. It has met all of my expectations except for gaming, and not for lack of performance mind you. The problem is that it overheats. I experience graphical artifacts and crashes when I max the system with an intensive game. I took it to an Apple store where they replaced the board but it still overheats. I have tried undervolting the system to reduce overall heat while at the same time manually increasing the fan speed. The problem remains. This thing gets up to 100C easy. I did some research and found that this problem is common for mac minis and mac portables going back several generations. Apple seems to skimp on cooling under max load. I guess these systems just aren't designed for max usage. That brings me to the iMac. Has anyone used an iMac for gaming? Any heat issues?