"The board features SLI/CrossFire on Demand technology, supporting up to Quad-GPU SLI or Quad-GPU CrossFireX configuration. Whichever path you take, you can be assured of jaw-dropping graphics at a level previously unseen. "
but it only has 3 16x pcie slots...... is number 4 putting the last card in a 1x slot??
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More aboutplz explain quad sli mobo pcie slots
They probably mean cards like 690 which have 2 gpus on a single card otherwise that board only support tri-sli
Dual GPU cards (GTX 690, HD 7990, etc) in an sli/xfire. Two cards, four chips.