Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!njin!princeton!phoenix!taiwan!hcfu
From: hcfu@taiwan.Princeton.EDU (Hsin Chia Fu)
Newsgroups: comp.sys.apple
Subject: Mac 512 upgrade with a 800k diskdrive
Keywords: Mac512k, and 800k diskdrive
Message-ID: <7934@phoenix.Princeton.EDU>
Date: 24 Apr 89 16:24:14 GMT
Sender: news@phoenix.Princeton.EDU
Reply-To: hcfu@taiwan.UUCP (Hsin Chia Fu)
Organization: Princeton University, Princeton NJ
Lines: 15
References:

I have a very old Mac128k, and I upgraded it to 512k by adding some RAM chips.
Recently, I plan to add an Cutting Edge 800k drive to my system.

I would like to know what else should I need to do besides just buying a 
diskdrive.

For example, some one told me the ROM chips (which is 64k), need 
to be changed to 128k in order to include the 800k drive. 
I can program my own EPROM.   Would some send a version of 128k ROM binary for
this upgrade. 
My system has 512k RAM, a 400k internal diskdrive, of course keyboard,
and monitor.
Thanks in advance.

my E-mail address is HCFU@ivy.princeton.edu,or 609-452-5410 (phone).