If this was working for you, something went wrong with the installation. It may or may not have been a fatal error. No beeps or post activity might suggest a bad power connection. Do you know if the board has an LED for the control voltage and does it come on? It's not uncommon for there to be a short circuit on the non component side of the board if there is a stand off that has no screw hole in the MB for it. The installation needs to be inspected closely. You can also strip the installation to just the essentials (CPU, video and RAM) to begin ruling things out.
Hi. I've just sold a motherboard to a friend, and he's just called me saying it's not working. The motherboard is a Biostar M7TDF, with award BIOS, 256mb DDR SDRAM, a P4 1.7ghz and an AGP graphics card (not sure what).
When turned on, everything lights up and the fan whirrs, but there's nothing on the screen and the motherboard doesn't beep. What's wrong? Is it the motherboard, the CPU, the RAM, what? I really need to know this so that I don't have to give him a refund, and of course to retain his trust.
Any ideas anyone?