I dont think that even server motherboards support that much ram, but this one is 4-way SLI/Xfire capable Motherboard:EVGA 150-SE-E789-KR EATX LGA2011 Motherboard ($379.00 @ Newegg)
I dont think that even server motherboards support that much ram, but this one is 4-way SLI/Xfire capable Motherboard:EVGA 150-SE-E789-KR EATX LGA2011 Motherboard ($379.00 @ Newegg)
You, sir, are looking for a serious server motherboard with those requirements. This power search on Newegg contains everything that meets your requirement of supporting 128+ GB of RAM and 4+ PCIe slots (I'm assuming x16).