Ummm...once you remove the original RAM chips from the motherboard and solder in sockets or higher density chips, it's not easy for someone to undo who wants to restore it. The 128k models are becoming a rarity and are collectible because they are the first. If you bought a 1953 COrvette and pulled the original 6 cylinder out of it and put a 350 V8 in you'd destroy a large part of the cars value. The same thing with upgrading a 128k Mac. Also, some of those add in upgrades like the Dove upgrade with the RAM board and SCSI controller are rarities in themselves and you wouldn't want to risk having them become non- functional because you'd never be able to get those repaired.
On Mar 18, 4:58 pm, hartonj <[email protected]> wrote: > Kinda random, how is any upgrade "too valuable" to risk actually > using? If that's true, then it's virtually worthless. I figure people > should photograph their upgrades and document them (maybe even draw > schematics) so they can be replicated. That might not be strictly > legal, but I can't see who'd care for discontinued products that are > at least 20-30 years old. > > On Mar 18, 10:57 am, PM7500 <[email protected]> wrote: > > > NO!!!! Do NOT upgrade the RAM on a 128k EVER! There are few enough > > unmolested 128k boards around as it is. Between those who upgraded > > them when they were new and those that were discarded over the years, > > it has driven the value of an unmolested, functioning 128k through the > > roof. If you want to do a RAM upgrade then your best bet is to find a > > 512k/512ke board and put it in and set the original 128k board aside > > where it will be safe. You can use a Plus motherboard, but then you > > also have to find a Plus case bucket. I don't recommend using > > something like a Dove upgrade because those are also rare these days > > and too valuable to risk actually using and cost too much. What's > > better is just buying a whole, functioning 512k/512ke/or Plus from > > ebay if you need a functional compact Mac. They are still cheap enough > > assuming they don't have any exotic upgrades inside like the > > aforementioned Dove. I am in the process of restoring a 128k Mac (the > > original 1984 model that just says Macintosh on the back) myself and > > I'm down to having to change out 1 RAM chip to make it work after > > having changed the analog board to get it to power up again. I got a > > good price on the board and it was easier than changing the now > > becoming scarce flyback transformer, which was the major problem and > > usually is the problem in many non-functioning compact Macs. > > > On Mar 17, 10:55 pm, Christian Wacker <[email protected]> wrote: > > > > > So my question is this - since I'm going to be in there already to fix > > > > this problem should I also replace/fix other components? This problem > > > > Capicitors. Replace the Capicitors. (and the PRAM battery) and upgrade > > > the RAM... etc etc etc... > > > > -- > > > -Proudly Sent from a Windows PC -- ----- 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/ To unsubscribe from this group, send email to vintage-macs+unsubscribegooglegroups.com or reply to this email with the words "REMOVE ME" as the subject.
