Is this is a motherboard issue?

I have a 2007-08 white MacBook. Recently it froze, so I shut it down. Now, the keyboard doesn't work, nor does the track pad or CD/DVD Drive. It doesn't recognize the battery, the green battery light glows very dimly, the battery shows no charge and the computer doesn't recognize the battery, although it still will run off just the battery power. I've zapped the PRAM. Booted up in Safe Mode and gotten my information off the hard drive. Anyone have any idea what the issue might be?
It also turns on randomly, by itself. Occasionally, it will boot up on command, but the result is always the same: the keyboard and track pad don't work and the fan whirs loudly.
Thanks in advance for the insight. The computer has been like this for about a month, and I'm just about to buy a new MacBook Pro. I just want to know what happened.

You have reset the NVRAM....have you reset the SMC?...
support.apple.com/kb/ht3964
....you might also try to use the Apple Hardware Test....if you can get it to boot from the install DVD1...
support.apple.com/kb/HT1509
....run the extended set of tests....it does run a diagnostic on the Logic Board....

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Hard Drive or Motherboard issue?

Hi,
You can see my set up in my signature below - Forgot to mention it's Windows XP SP2. I am having issues with my Hard drives, Everything was working perfectly for about a week, then misteriously my 2nd hard drive (the 300Gb Maxtor drive) disappeared from windows explorer so I rebooted, this resulted in the computer sitting at the boot screen (the MSI full screen graphic) and not doing anything. I tried restarting a couple of times but still nothing so I opened the case, unplugged the sata drives and plugged them back in, this resulted in the computer booting fine. About 30 mins later the Maxtor drive vanished again, so I tried the same procedure but couldn't get the machine to boot. This is where it gets interesting:
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