Start by pulling the cover and cleaning it out. The apply power and see what fans if any are running. If there is nothing working at all make sure that everything is plugged in correctly and try again.
Are you hearing any beeps from the computer? If you are list the beep number and type eg 3 short beeps followed by a single long beep. The Beep codes are unique for each M'Board but they do tell you what if anything is actually going on with the M'Board, CPU, RAM combination and you can do some basic fault finding from just listening to the beeps.
If there is no response at all try replacing the Power Supply as these do go bad and cut down the output current so that things will not work particularly it it's been overtaxed in the power demand department.
As Epox no longer lists that M'Board on its Web Site There isn't a lot more I can suggest. The obvious thing is to clean out any crud & dust that has been sucked into the case and re-seat the parts but for the time being leave the CPU alone. If the Heat-sink has come off the CPU that will be dead but if it's still in place just pulling out any plug in cards and RAM may get things working again just remember to power down and remove the power cord before removing anything and grab the case on a metal part before you stick your fingers inside so you do not discharge a static jolt into the internals of the case.
Col
