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That is bad luck, especially as — so far as I know — a board swap is the most practical solution in these cases. It’s what I did with mine some years back, as I could not find replacement components. They do seem prone to failure. I would look for a known-working 20” ADC display myself. ADC...

It sounds like the characteristic behaviour I have observed in machines with a failed processor — or an overheating processor. But I am no tech. As someone who has gotten a lot of these going, all the same, I’d have said that a sensible first step would be to extract the processors, remove the...

Can you just extract another screw, toddle along to a suitable hardware store to find a nut to fit it, read the specs, and then do the ordering?

A link would be handy.

I believe that Dana, of this parish (and of vhack fame), used to claim on her old Q605-themed website that turning the fan over with a view to expelling the air made her Q605 run cooler. This mattered in her overclocked, FPU-equipped machines. Anyway, I certainly ran an LC475 that-a-way as a...

Working 2.5” SCSI drives are rare enough for you to be able to trade one to another member in need of one, in return for getting the extracted data back.

The posted price of $175 is way too much, imo. On the other hand, $75 would not be so bad if for that you were getting, say, a CD bezel and other working parts to keep a machine going if need be, even with a dud logic board. But you could do better, too. $100-ish has been the typical asking...

Interesting device, especially given the direction that computing has taken in streaming, etc. A quick search tells me that Bill Atkinson wrote the software: https://32by32.com/macvision/ . If you can find an address, why not write him a letter and ask about it? If he answers, you can then...

Never mind the SPARC. That cat looks to be baying at the moon. Is it a werecat?

The Q950 is supposed to use active termination rather than passive — Google is your friend here — but whether this would impact on a ZuluSCSI device installed in a Q950 is known only to the ZuluSCSI gods. Or maybe not even to them. In practice what active versus passive termination meant back...

I find a broad wood chisel, say 1¼”, slowly worked around the 4 edges works well. Insert and twist gently, left and right, a little at a time. The processor emerges nicely, and almost as evenly as it would with a proper chip puller, if you take it about 1mm/side at a time. Then pretty quickly...

One thing to check if repair is to be entertained as an option is whether parts obtained from machines based on the same print engine would be compatible. For example, the LWPro 600/630 (I used one for ~20 years) shared a great many parts with the HP Laserjet 4/ 4 Plus. The power supply could...

Okay, so inspired by this, I did a little digging, and…. Am I right in thinking that I would need a (paid) developer account to install either of the locally built emulators on an iPad for anything longer than 7 days? I’ve got Xcode, and therefore have a developer account associated with an...

Is there any reason to prefer the minivmac route over the basilisk? I didn’t know this was possible, but did years ago have a minivmac installation on an iPod Touch v1. That was actually pretty epic, so managing to heave it onto an iPad ought to be awesome indeed. — No jailbreaking needed?

Ordinarily I think you would need to drag the menu bar to the other monitor in the relevant (Monitors?) Control Panel, making other changes as required there as well. I don‘t think there’s a key combination for this. However, if you can see enough of the PB’s screen to open and then drag the...

In the past I transplanted a 640x480 5300c screen onto a 190cs with great success. I rather liked it because it ran on a 68LC040, sported an active matrix display once altered, was equipped with a whopping 40MB (48?) of RAM, and took an easily replaced IDE drive. Alongside all that, it had the...

I’m assuming this is an LC PDS card. A 68882 is the co-processor in question. It will make little difference in a 68030-based Mac, except in certain specialized programs for things like 3D design or in similarly heavy mathematical programs like spreadsheets. The most dramatic differences will...

That was a long, long time ago! But Trag is yer man for knowledgeable input on this one. My 650 is currently in storage, but I do seem to recall that those 64mb SIMMs didn’t work in it — they do work famously, however, in a Q605/ mystic Color Classic, which is nice. The 650 does nicely loaded...

Further to my last contribution, search/ dig around on the forum for posts on the subject by Trag.

https://68kmla.org/bb/index.php?threads/help-memory-expansion-for-quadra-650.42231/#post-458694 Searching is a wonderful thing….