What is this chip piggy backed on a RAM chip?
That might be an unofficial upgrade to 512k
That's a good tip I never knew about! Here I was looking up Apple part numbers!You can tell because the RAM size in “About the Finder” doesn’t have a dot after it.
Start with isopropyl alcohol on a Q tip to clean the drive head. Do some searches on this site for troubleshooting info. Those 400K drives are built like tanks, so other than lubrication, I have rarely had problems with them. Do you get any icons that indicate a problem? Crossed out disk, or anything?I'd like to keep the 400k floppy but I don't know anything about fixing them. It accepts the disk, makes some noise, then ejects it smartly.