I feel like a complete idiot....CPU seated wrong. I
damaged one of the pins(broke off) during install. Just
killed $450 CPU.. Thank you for all your comments and
observations. Painful lesson!
It may just be that one of the components that you have
installed is not properly located.
This could be memory, system fan, video card etc. In
most instances like the one you suggest, the video card
isn't properly seated and the sytem will crash after
basic load has completed.
This process should narrow down the search to locate
Try stripping off everything, then install CPU + Fan,
one Memory module, and Video Card [if its a plug in
device and not located on the board]. Connect PSU to
board and the Mouse, Keyboard and Monitor. Test that it
If it isn't change over the one memory module for
Power off and add Floppy Drive, test.
repeat the above, adding in one device at a time.
If you find that your 'shutdown' occurs at the first
step, go back to the shop and ask for help.
If it shutsdown after the addition of a particular
device, then you've located the casue and can go and get
that specific device replaced.
Also, some motherboards, such as MSI have a LED status
indicator either on the board or plug in. Should you
have this faciltiy, check the staus display against the
trouble shooting guide.