Re: need some serious help
i think the GTX 280 requires 2 8pin PCI-E connector, did you plug them both in?
Try reseating the RAM, or take one out, or try different slots.
Try a different graphics card?
Reset the Cmos?
Desktop -Cooler Master NV690/AMD Phenom II X4 965 BE/MSI 880G-E45 Motherboard/2 x 2GB DDR3 G.Skill Ripjaws X/Sapphire HD 5870 1GB GDDR5/CORSAIR CMPSU-550VX/Seagate 7200.12 500GB (OS), Samsung F3 1TB (Storage)/Sony DVD Burner/Windows 7 Professional 64-bit