Computer turns off in 3 seconds

[zigma]

When I turn on the computer, it turns on for 3 seconds then it shuts down automatically. I don't have a chance to see anything on the screen
amd 64 x2 6000
m2n68 am se 2
kingston 2 gb ram

 

[dustin_ds3000]

If your computer has two sticks of ram try testing them one at a time and in different slots. And make sure the cpu heatsink isn't lose. Also make sure all expansion cards are in the slots by taking them out and putting them back it. Do one thing to see if you can get it working.