J&W's upcoming P55 motherboard is the first we've seen proudly claiming support for Nvidia's SLI.
We already know the PCI-Express lanes come direct from the CPU for Lynnfield/P55, so the two PCI-Express lanes are physically x16 but only x8 electrically in SLI mode. In single card mode the upper most slot gets a full x16 2.0 bandwidth though.
J&W's board has some heavy cooling around the CPU socket for the eight phases, and also includes the extra slot connector for NAND Flash by the four DDR3 1,333MHz memory slots.
In addition, there is the usual of PCI-Express x1 slots, two PCI slots, onboard power and reset buttons and eight SATA 3Gbps - the two extra are from a JMicron chipset that also supplies IDE. The rear I/O gets a clear CMOS button too, but it's all a bit samey really.
Is this the limit of Nvidia's motherboard contributions in future? Despite this loud affiliation with Nvidia we doubt the two companies can really play much with the die hardware of Intel's CPU.
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