Mother board fried?

Hello,
is my motherboard dead? My computer ..( a acer aspire m1641) doesnt boot up, says no input on monitor, and no beeps when all the ram is taken out. The only thing that happens when i hit the power button is the cpu fans,cd drives and (hd i think) turn on. So does this mean my mobo is dead? my Psu bad? or Cpu? I had a feeling it was my psu, so i checked it using a multimeter... it pumps out the rite Volts per pin... Im not sure abt the amps.

What do i need to fix?

also there is no lights on the mobo at all... usually the ethernet port glows when plugged, but no glow now. Thanks in advance

I tested the psu according to this http://www.google.ca/imgres?q=24-p [...] illa:en-USfficial&biw=1280&bih=629&tbm=isch&tbnid=K2UYcvSZewS9iM:&imgrefurl=http://flylib.com/books/en/4.55.1.48/1/&docid=jGizOdxWXmW8YM&w=352&h=475&ei=xrw-TuaCIamtsAKa8-z9Dw&zoom=1&iact=rc&dur=180&page=1&tbnh=185&tbnw=137&start=0&ndsp=19&ved=1t:429,r:5,s:0&tx=17&ty=89... and it had the right volts per pin... so yea i think its my mobo.. hopefullly. but one question.. how does the cpu fan get power if the mobo is dead? the cpu fan gets its power trough the mobo...

Also i took off the heatsink and checked the cpu.. the thermal paste was very hard and dry.. but had a good coverage around it. also i tried the dumb way of checking the cpu, by checking if it heats up by turning the comp on for a couple of seconds.. No heat was felt by my fingers.. last question.. will the cpu get powered up if the mobo is dead?

So i replaced my motherboard yesterday and everything looks fine now
Thanks