Looking like the Latitude is not going to be an easy restoration... Sigh...
Starting out positive, the exterior cleaned up okay. I got a lot of gunk off and wiped it all down. The keyboard is still a bit dirty but mostly clean now. Overall exterior looks decent all things considered. Also good, the ram under the keyboard is a Quimonda 512mb stick I assume is factory, but the ram under the door in back is a nice G.skill 1g stick that presumably was an upgrade at some point.
The screen is in very nice shape and I quite like the keyboard feel. A lot of travel.
The bad:
The CMOS battery measures 0.15v, so I'll have to replace that. But it's got leads soldered to it and plugs into ard through a cable, so that's not straightforward.
I helped make the right hinge less wobbly by just tightening screws, but the plastic of the left one is physically broken and the screen falls flat at random because of this...
There is also some corrosion on the bottom of the keyboard and additionally some elsewhere on the chassis. Not horrible, but I think liquid was spilled here at least once.
But the worst part is when I try to actually use it. I figured the battery was dead and wasn't alarmed when it didn't turn on. When I reseated the battery it turner on for the photo in the first post. But it turns out giving and cutting power is the only way for this to turn on. The power button does nothing. When given power most of the time it will power on and give the message shown earlier. From here, usually no keys do anything. One or 2 times I got into the bios by pressing f2 on a USB keyboard, but usually it's just frozen and won't even let me do that. Sometimes it gets stuck on the bios screen and doesn't even get to the CMOS error. The power button does nothing to turn the pc on or off, I just have to cut power and give it back. If I leave the battery in, the PC will turn on and off randomly every few minutes. I've tried switching around ram, removing the wifi card, etc. No avail. The PC won't turn on at all without a keyboard, and when keyboard is connected it immediately turns on, making me think something might be bridged, possibly by corrosion.
I'm going to have to do further investigation and troubleshooting. If anyone has ideas I'm all ears.