Should be easier than DME chips. Those look scary to me, and I've been in computers for years. hahaha. Unplug everything, wait a moment, pull the case off, touch something grounded, and have yourself a peek. Vacuum some dust out, then see what you can see. Actually, if you have any of the original dox that came with the machine, it might be in those, which would be a lot easier than opening the case and digging around with a flashlight.
Let us know what you find,
Dan