Please give this a read, correct any errors in my knowledge, and provide any assistance you are willing/able. I am still relatively new to the world of vintage Macs and I'd love to get this machine running properly again.
I was given a Power Macintosh 6100/60av this week. I noticed the date was showing as 1956. I've read this indicates a bad PRAM battery. If this had been the only error, I would have bought a new battery and moved on.
After about an hour of use - just general use like testing the keyboard in SimpleText, loading Sim City 2000 and Syndicate after nearly two decades, I shut the computer off and went to go do something else for a bit. Later that night I turned the machine on and found that it would not boot. After a few tries, I managed to get an image on the screen but it was slightly different than what I had seen earlier.
- -Instead of the normal "Welcome to Macintosh" box that shows all the programs loading at the bottom of the screen, it was just a blue bar.
- -When the OS loaded, Finder seemed to be in a bit of disarray. There were strange black bars along the top overlapping with the menu items.
- -Selecting icons on the desktop seemed to leave artifacts where the mouse had been.
- -Opening folders was a strange affair - at times only an outline of the open folder appears, other times, the contents and whitespace are shown, but navigating through finder is hit and miss.
- -Most programs that ran were missing details like...Ok and Cancel buttons.
- -I am running System 7.5 with 40mb of RAM.
- -I have my video running from the av card s-video out to the s-video in on the back of a capture card that relays video to my monitor connected to my modern PC.
[***]A note on this: This setup worked fine before I shut down the computer the first time. So I would be reluctant to place this very high on the list of possible causes.
- -I tried resetting the time before I read that it indicated a dead or low battery, and it reverts to 1956 on start-up.
- -I have read that if the PRAM battery is dead, any image displayed would likely be in black and white. I've read that if the image displayed is not black and white the issue may lie with corrupted Finder settings.
I am not in a position to provide images/video currently but, I will do so when I get home in a few hours.