I have Asus m2n-vm dvi Mobo with 940 pin cpu .... when i power up the system, cpu and smps fan starts and shuts down after 5 seconds, I have disconnected everything from Motherboard, just the CPU and mobo then fireup, same thing happens, then I removed the cpu, then the smps fan keeps going. I checked the entire mobo, no short circuits, no burnt capacitors, nothing looks fishy, reseated all cables, cleaned it, cmos battery swapped but nogo. Any help will be appreciated.