One of them looked AT, but in fct is ATX, and actually is a modern thing almost! Removable mobo tray
It has a sticker saying what was inside. Specs were as follows:
Intel 440LX (Kootenay based boards...POSes)
Made in 1998
I will have a K6-II 500 in there. I have the stuffs.
The second one is an identical case to one I have. It came with a ASUS TuV4X. It's chipset is a VIA Apollo Pro 133...but something fried, because I looked at the bottom of the PSU and looks fried. Kinda grease mixed with dust. The case was kinda yellowish, so the user probably smoked. Oh well, I'll throw in a Celeron 900 and try it out. Out of 4 RAM banks, two are usable. The first is missing a white retention at the bottom and so is the third, but the third is broken, so I can't put another one. I ain't going to play with a 168-pin soldering.
The case is a doorless wonder and looks really in bad condition, but I don't know for the board...definatelly won't power up with the PSU it came with (300W with lots of dust, and the other case has a 235W).
If it does power up, looks like I'll grab a Tualatin Celeron or PIII.