I think my motherboard is broken. First I thought the PSU was broken, but after I replaced the PSU, I only see that the cpu fan makes a little movement and then nothing happens. I also checked if the on/off button cables are in the right place.
Also the fan of the powersupply isn't working, I tried two different PSU's and bothe are new, so the change of 2 doa's is minimal.
Do you think my motherboard is dead?
Definitely could be. When I encounter this I usually also check the RAM and the CPU. If you can get your hands on some spares, it is worth a shot.
Have you unplugged everything else from the motherboard except the CPU and RAM?
You might want to make sure the Clear CMOS jumper is set to the correct pins, and make sure you don't have any shorts in the system (e.g., make sure there are no loose screws, and make sure you don't have any stray motherboard standoffs touching the back of the board where there aren't any screw holes).
Also, some motherboards require you to plug in multiple power connectors, not just the 20- or 24-pin main power connector.
Also the fan of the powersupply isn't working, I tried two different PSU's and bothe are new, so the change of 2 doa's is minimal.
Some power supplies require you to plug the power supply's fan into the motherboard. Double-check whether your power supply powers its own fan, or if it requires you to plug a 3- or 4-prong connector into one of the fan headers on the motherboard. You can perform a simple power supply test by using a paper clip to short the green wire with one of the black wires in the main (20- or 24-pin) power connector. If the fan runs, something is goofy with your motherboard. If the fan doesn't run, you should use a voltmeter or multimeter to confirm that the power supply is, indeed, producing the correct voltages on the power connectors.
