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If they're willing to let you open up the case (long Torx screwdriver, four screws, pretty easy to open up) and inspect the logic boards, then you can determine whether they're worth it or not. If the battery exploded and leaked all over the board corroding the circuit traces, it's game over...

I know it's late, but SE/30 (and other Macs using 30 pin memory!) does not care about parity or non-parity memory and often parity memory can be had reasonably cheaply.  I bought this and was very pleased at the quality, warranty, and price...

Ahh, yes.  But that being straightforward, couldn't replacement ROMs simply be programmed with an ordinary ROM programmer?

Whoa, well done!  Was thinking "hey! My work is done!" but I think you were going the other way around and also using the smaller form factor PLCC pinout rather than the SE/30 44-pin PLCC to the SE 28 pinster. Thanks for confirming my theory of swap-eration!

See that adapter? Think about it as a little bit of inspiration. So, the SWIM chip as we all know is an upgrade to earlier Macintosh SE machines that were equipped with 800k drives and was once an upgrade option for users who want to read and write 1.44MB floppy drives. I'm now an owner of a...

Exactly the one.  Wow. Some sadistic chemical engineer from Maxell is laughing still!

In a pinch you can use zip-ties (cable ties) and/or a piece of gorilla tape (or similar) bound against the other SIMMs to keep the tabless SIMM upright and within its slot.  Probably best to get a period-correct SIMM slot if you are wanting an authentic restoration. I have a donor SE/30 logic...

FYI - (dish and others) Soap is a base, which neutralizes any kind of acid that would be active (if there were any left - the battery and its holder were removed if you noticed in the photo). Note that the acid basically wore itself out eating up various components and is no longer active. ...

Dang. Sorry to hear the news. Well, I've got a mostly happy Mac SE/30 with a repaired Astec power supply (had to replace the input filter caps with modern versions) that does NOT have an ethernet card, which this Mac will donate.  Would it be worth swapping in the Sony power supply from this...

I took a risk on a non-bootable SE/30 in the hopes it was just a dead hard drive. Well, the hard drive works. And it came with an Ethernet card. The Sony power supply seems to be working fine, and I would imagine the screen is probably OK too.   But sadly, the logic board does not due to a...

Hey there gang. Some time back I was able to take several of my old Macs for a spin and they started up fine still (a couple needed a bit of stiction-push).  However, I had 'prepared' them by deleting a lot of personal data and applications for a useful next life.  That life never happened...

So, not sure if anyone actually controls the 68kmla infrastructure around here, but the Certificate just expired on the wiki.  It might make sense to go with the free LetsEncrypt SSL cert and automate the renewal if that helps? Subject: wiki.68kmla.org                                          ...

I would also be very interested in this.  I had a pop-fizz-smoke experience with the power supply in a Macintosh SE/30 and am thinking I need to fix that before I try to turn it on again. (It was seemingly working when it popped)