Configuration - - GIGABYTE GA-MA790FXT-UD5P AM3 DDR3 AMD 790FX ATX AMD Motherboard - G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Dual Channel Kit Desktop Memory Model F3-10666CL8D-4GBHK -AMD Phenom II X4 955 Black Edition Deneb 3.2GHz Socket AM3 125W Quad-Core Processor Model HDZ955FBGIBOX -SAPPHIRE 100259-1GL Radeon HD 4870 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card -Rosewill RBR750-M 750W, ATX12V v2.3/EPS12V, SLI Ready, Active-PFC, 80 PLUS BRONZE Certified, Modular Power Supply, UL,CUL,FCC,CB,TUV,ROHS ____________________________________ We cannot get the setup to powerup. We have ckd with Rosewill and tested the power supply and it does work. It seems the issue is at the mobo power connector, but all the pins and such look fine. We have disconnected everything except the board and still no luck. Can anyone give some advice? Thanks so so much.