This is just getting ridiculous now! My Classic is throwing me so many curves, it's impossible to keep up! Now, it seems, it's always doing a checkerboard unless it's left off for 12+ hours, then turned back on, at which point it runs infinitely long until it freezes (if you do something stupid) or you turn it off. Then it checkerboards until you give it 12 hours off (plugged in or not it doesnt matter). You can do anything you want with the SIMMs or the expansion card... take them out, clean them, or heck, even remove the card entirely. However, last time I did this little cycle, I decided to try something new: I left the floppy and HDD out when I turned it on (I was working on my "brand new" IIgs and needed a drive), it booted to the blinking question mark disk (no system), and when I rebooted it this time expecting a checkerboard, it gave me a partial initial-startup screen (90% of the standard diagonal lines, then at the bottom 10% it was scrambled, with random pixels toggled incorrectly) frozen. I took out the 1mb card entirely and booted it, it gave me a very interesting, randomly selective either-checkerboard-or-init screen... some parts were the init screen, some parts were the checkerboard... kinda diffusion-transparency, it seemed. Turned it off, plugged the card back in, and it did the same thing as it did the first time - the partial screen, very clean. Unplugged the card while it was on, and the screen instantly went to the second screen. Plugged it in, first screen, unplugged, second. It seems it's using half the video memory onboard, and half on the card... randomly.
No matter how it works, it seems the Mac isn't resetting the RAM properly when it's turned on, or the RAM is more-or-less acting like Flash. Turns out it wasn't the battery after all. After I left it off for a few minutes and turned it back on, card out = semi-distorted checkerboard (random toggled pixels here and there, "dirty"), card in = perfect checkerboard, no flaws. Onboard RAM, perhaps? But the thing is, it plays nice when it finally does boot... so it must not be resetting the RAM properly. Any ideas? I already dishwashered the board, still no better (or worse for that matter). -- Compact Macs is sponsored by <http://lowendmac.com/>. Support Low End Mac <http://lowendmac.com/lists/support.html> Compact Macs list info: <http://lowendmac.com/lists/compact.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/compact.macs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
