PSU must be able to maintain regulation under load, my recently replaced 750W dipped to 11.5V when launching missions in CoD and the GPU would not render correctly.
I tried it as an additional dedicated GPU supply but the rugulation is fubarred. The replacement coolmaster provides good steady 12V regualtion under load.
If you have two known good PSU's (and space to fit) I don't see why you shouldn't connect them in tandem to share load, just make sure that the common rails are tied together (usually most PSU's 0v is connected to the PSU casing and if both are bolted to the steel casing both PSU's should have a common ground 0v).
The only concern I would have are possible effects of having some 12V and 5V rails being present at slightly different times during switch on (unless you can get the mobo to switch both on at the same time).
Interesting thread.
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06-02-2011, 02:18 PM
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