Asus A8N-SLI
 

Firstly, on this board Asus has done away with the flip chip PCB that has
to be flipped round to enable SLI a on other motherboards. Instead this
function is controlled by the BIOS, so that if you put in a second
graphics card, it will just work. For some reason, the BIOS option,
labelled AI Selector, has three settings, Auto, Single and Dual, though
I’m not sure why you need the last two settings.

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