Re: Defective RAM on Apple IIgs

["William Garber" <willy46pa@garberstreet.com>]

"Bryan Parkoff" <nospam@nospam.com> wrote in message news:IQFeh.799$yC5.623@newssvr27.news.prodigy.net...
: Folks,
:
:     I have experienced when I tried to copy files from DOS 3.3 to ProDOS
: using Copy II Plus 9.1.  I compared both files on source and target.  I have
: discovered that both are not identical.  I did notice garbage data from
: sector to sector.  I assure to be defective RAM built-in on motherboard of
: Apple IIgs (256KB).  I did diagnose using Ctrl-Open Apple-Closed
: Apple-Reset, but it shows, "System Good".  It does not make sense.  It
: should have scanned bank $0 through $3 to detect corrupted data in RAM.
:     I have tested another Apple IIgs motherboard.  It is working fine when
: files are copied using Copy II Plus 9.1.  Maybe, I will need another
: software to test defective RAM.  If it determines errors in RAM. there
: should be a way to replace RAM chips on motherboard, but they are all
: soldered.  Any suggestions?
:
: Bryan Parkoff


Bryan,

Some DOS files cannot be directly copied to ProDOS.
There is a program on the ProDOS User's Disk that
converts these files so that they can be copied,
and it also copies the files for you. If I'm not
mistaken, it is called Convert.

William Garber
Email Address - willy46pa@garberstreet.com
Alt. Email - willy46pa@comcast.net
Web address - http://www.garberstreet.com