Gateway 1500 with P4, 1.5 GHz, Windows XP.
I replaced the power supply on this 4-5 year old computer about a year ago.
My friend brought it to me because of intermittent freezing. I kept it 
overnight, but couldn't get it to freeze. There were no significant 
entries in Event viewer. I reinstalled the adapter and ethernet card.
  A couple of days later, he brought it back-in the meantime, it had 
fallen over hard in his car. The cpu fan is no longer turning, but the 
power supply fan is. (I thought that was impossible). There's a green 
light on the board. The power supply checks as good.
Now, I get no post. I removed and replaced the memory, video card (Used 
a known good one), and all pci cards.
I get nada-no beeps, nothing.
I assume the motherboard is dead, but I was wondering if there's a 
definitive test. I suppose it could be the chip, due to the cpu fan not 
turning.
Thanks.

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