Verified answer

So long as the Power Supply can Truly deliver:

12V1 @ 16A = 192w

+12V2 @ 18A,= 218w

or at least 60% of its stated output, then YES it can.

I mean, most cheap power supply out there says it can do 500w but honestly, you'll be lucky if it can do 250 - 300w. Which is why you saw certain brands of Power supply sold at 3 times the price. Brand premium is one of the reason, another being it gets 80plus rated to ensure it can achieve 80%+ efficiency at 100% load (being 100% load means it can truly deliver its stated output).