Power supply is more complicated with 2 -4 rails design for the new motherboard. Email us if you have any questions and we will answer your question at our best. Emacs 1U/2U/3U/4U Rack Power Supplies Emacs PS2 / PS2+ PFC Power Supplies ATX 12V power supplies NMB GM430WTXSCV 430W ATX Power Supply for Intel DP Xeon (Foster) Regular price: $129.00 Sale price: $89.00 Quad-SLI power supplies