300W ought to do it, in what looks like a conspiracy nut's choice of headwear. Also definitely get that extinguisher checked...nothing like explaining that to the insurers..."well I had this extinguisher...but it was full of oxygen"
comment: i think the "reliable" wording is totally inaccurate. I merely ran this psu on my supercomputer rig in a heated case lined with foil and subjected it to full load and it blew up! quite frankly i think this is unnacceptable and i shall be returning the charred remains of the unit to ebuyer for a refund, well, once i extract the molex plug from my daughters head.
"Ideal for system builders who like to be kept in buisness till the end of time and anyone working to a tight budget and who likes explosions (i.e. Jim).