r/Vintagemacintosh

I just won an auction on a Macintosh 128k for a really good price, and it came with a fan hot glued into the back case, and a 512k memory expansion card. Just want to know if these are common mods to the 128k.

Hi all!

I recently got given this Centris 650 from a friend (with it's og monitor, keyboard and mouse). Due to it not powering on at all, I got to researching atx conversions and stumbled upon all the models. Now the models I came across came with either a 68040 or 68lc040 (which have built-in FPU's if I'm correct).

I can only find a chip with the designation of 68030 and a separate FPU slot, and the board layout is also way different from anything I found online.

Please help!! This is my first vintage Mac and I am lost 😅

For those who want to restore a Macintosh Plus and are looking for a solution to replace the internal 4.5V battery with one that's practically impossible to find these days, I got a battery pack on AliExpress that holds three 1.5V LR44 batteries, so it has a 4.5V output. Given their small size, I was able to use two packs in parallel to increase capacity. The size is perfect. A little self-adhesive foam fills the gaps nicely and ensures a snug fit.

In short, there are probably other solutions; mine cost less than $10. 

I have recently acquired a Mac SE however there were some details I wanted to investigate since I couldn’t find much information online. It seems to be a fairly normal system however it reports it has 15,808k of memory which shouldn’t be possible on a standard SE (due to the 4 mb limit). It already seems to have been modified since it has a CMS SCSI hard drive installed in a non standard place being that it is a two floppy drive unit. Was my unit modded or even board swapped at one point given the SE/30 supports up to 32mb. I don’t know too much about these systems and I am curious to know.

EDIT: I did a bit of digging through my computer based on the information given and discovered my computer is running a Sonnet Allegro Mac SE accelerator card which allows for an additional 16mb of ram, I appreciate all the support and I will definitely get my Mac’s recapped and battery changed soon.

Today, I got my hands on something I’ve been eagerly searching for for the past few years. With this acquisition, I’m now 99% complete in my quest to collect Apple/NeXT operating systems. The BeOS Collection is finally complete. Can anyone guess which Apple and NeXT operating systems I still need to add to my collection?

I have never listened to it. Digging up a tape player to digitize it.

Got some boards today so time to recap and test:)

First board a iivx i needed to replace a battery bombed board. Recapped with organic polymer caps. Now i have a complete iivx with a very clean case.

Second board is a iivi. Basically same as above. Just no fpu and slower cpu. Used tantalums on it.

Third board is a 8100/110 ppc 601. Nice board, works perfectly. Recapped with organic polymer caps.