Tbh I can't quite believe I managed to bring it back to life. I thought the chipset was toast. Luckily it has all those buffers on there. I think I will pull the other suspect buffers too, lest they put a strain on the chipset due to bad input gates.

Oh noes all the chips are falling out!

I decided to pull them all. This is just too sus for my taste.

And this is where he realized he didn't order enough parts

Yeah, no idea what happened there. Three have outright bad gates. The rest is marginal. Guess they all got zapped by ESD.

Remember kids, ESD is real. Don't give your boards carpet time. Ever.
If you think it's fine, you are wrong. Eventually it will start to glitch and act weird. Good luck then replacing ASICs and hybrids.

In the bad parts bin they go, all of them.

Ordered parts! I hope I can finally break through my giant backlog

Today on the bench.... yet another 286 board. Objectives here are to shotgun replace the tantalums, test it, fix any issues, then pack it up for its new owner

Jfc I have to rant: instead of ~30min - 1h that this usually would take, it takes ages because for some reason one hole is not only super tight, but also has a ton of thermal mass behind it. So I have to apply heat for 30s and then still not get the old solder out. Only way is to heat it up with fresh solder and then wiggle the leg in.

Yeahhh .. that would have popped