Hi!
Been running a 1200 paired with an M-Tec 1230/28 w. 8mb RAM for a good week now, and it's been working fine, but today it started screwing up. Had a nice long WHDload session in the evening/afternoon, turned off the comp, then started it up again a couple hours later and now it just won't run stable for long.
The rig keeps resetting under load, wonder why... occasionally I also get a software failure (press left mouse to reboot, etc).
It was running Classic Workbench when I bought it, one of the heavier setups as far as I could tell (ADV or ADVSP w. Scalos, high colour icons and god knows what else), I tried to install LITE and at least I can run a few applets after boot, but anything heavier seems to cause a reset again. Reinstalled ADV and it gives me alot more trouble.
I am suspecting the expansion RAM, it looked a bit corroded so I cleaned it up, but it doesn't seem to make a difference. (I do recall seeing more RAM in Workbench now that I've reseated it a few times, but not 100% sure...)
Or could it be power supply... quirky in any case. Sadly the floppy is whacked so I just can't load a disk game and see how it behaves... dunno a good way to test the rig really.
Anyone seen this before, or something similar?
Some advice would be great. 
Try to look at the guru messages when they eventually pop up. like I have (or had - just sent back for rma) a Typhoon 030/40 that continuously got GURU. #8000000D "Coprocessor Protocol Violation".