I clicked on the link and it was midget amputee pron
try sticking it in the fridge, and if it still shuts down in 5minutes, its probably some hardware malfunction or software problem, and not overheating. Anyways, as said before, if you got a "computer guy" at your company, try giving it to him so he can open the damned thing and vent it with compressor. That will solve the overheating problem, unless ventilator died on you. Check bios if any particular component is over heating, and post so we can go from there.