It may be the power supply, if you have a spare test with that... Sometimes unplugging a power supply can cause it to no longer function. In the retail world I can not count the number of times people would bring in an old "working computer" that after being unplugged and sitting for a short time would not power on again until replacing the power supply. There are capacitors in them that simply wear out. I would suggest trying a different power supply.
I have never seen a static shock take out computer hardware after nearly 20 years of building them. If you left the computer plugged into the wall and pulled out the ram at an angle, maybe some circuits shorted but it seems highly unlikely.
Have you checked for bad capacitors on the motherboard/video cards etc?
Look for blown or bulging caps while you have the case open: https://www.google.com/search?q=blown+bulging+capacitors+motherboard&client=firefox-a&hs=sp&rls=org.mozilla:en-US:official&channel=np&source=lnms&tbm=isch&sa=X&ei=CQ5tU9S1FYOpyATMw4GYDQ&ved=0CAgQ_AUoAQ
If you have blown or bulging caps, it is probably time to repalce the machine.
If you take a picture of the motherboard I can tell you if you have bad capacitors, these can cause no posts, instability, and power on problems.
Edited by zingo156, 12 May 2014 - 07:29 AM.