Quick update! After inspecting the all the board thoroughly again. I found that the resister for recognising 256k Ram has been clipped off! The previous owner must have installed 4Mb Ram on the machine. And I sholder it back, everything works fine!
How I wish he has told me that! Now I am on the Mac Plus! H On Saturday, March 17, 2018 at 4:28:00 AM UTC+11, Hody Hong wrote: > > Floppy EMU arrived, running as normal, but same issue occurred. This rules > out the software issue. I did try different System boot disk images. > > Try clipping 3 AA batteries in serial, no love either. > > So now I think it is the ram. I have ordered some 4Mb upgrade online. > Hopefully with installing them can help. > > These vintage macs really don't give you much to work with!! > > Would there be other causes? > > Hody > > On Thursday, March 8, 2018 at 2:33:24 AM UTC+11, Clark Martin wrote: >> >> In descending order of likelihood: >> >> File problem on the boot floppy >> Bad floppy >> Problem with the floppy drive >> Dirty >> Dried out lubrication >> Corrupt PRAM >> Low / Dead / Missing PRAM battery >> Memory problem >> >> Clark Martin >> A designated driver on the information Super Highway >> >> On Mar 7, 2018, at 6:42 AM, Hody Hong <[email protected]> wrote: >> >> In fact I just pick up this Mac Plus from a seller labeling as part. I >> turn on the machine and it chimes and show the question mark floppy and I >> put a system 6 disk in and it will start booting. Everything sounds >> correctly until it just stops. >> It will basically hang there at the happy mac face. >> >> I did open the machine up to check. Everything was nice and clean and no >> leakage what so ever. I also did swapping the rams around. No love either. >> >> Could this be a floppy issue? Possible corrupt the boot disk? >> >> >> -- -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
