The machine is giving me no signs of life whatsoever, no fans, no hard drive noises, nothing.
It appears to draw power for about two seconds, which I only can tell because of a USB thing I have plugged in. I tried resetting the PRAM and the SMC. I took out the RAM to make sure it wasn’t either of the memory modules. It’s not the charger either, as that charger is able to charge my 2007 MacBook that’s been collecting dust and isn’t useful for anything.
The computer simply will not boot for anything, nor will it reach the POST. Again, it’s not even giving me any indication that it’s doing anything whatsoever.

I’m not sure if it has to do with the logic board, or anything else like that. I know that I can’t invest anything further in this machine at all, and I am simply unable to get any more hardware at this point in time. I’ll keep trying to get it to work, but I wonder if some sort of fundraising effort might allow me to get a low end, similar error machine to be able to replace it and finish the work. A quick survey of eBay suggests that scraping together $500 might allow to replace it with something pretty comparable that may work. Again, really hoping it doesn’t come to something like that. I just don’t know.