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I'm trying to get the best out of my Quadra 950 built-in video. I have a SuperMac NuBus card driving a 1024x768 15" TFT at 60Hz I use as its main monitor. The builtin video along with the Houdini II card however is something I'd like to configure to Multiple Scan 21" codes to my CRT for, but I...

Macs of this era had their resources in ROM, and the System only updated them. A ROM could be based on a certain System version and therefore require anything newer than that, but it wasn't like you'd have to release a new System per model unlike in the Michael Spindler era.

Why did you recap it? These have tantalum capacitors that don't age like electrolytic ones do.

They're steeply angled and seem to have much wider spacing than the original dual SIMM sockets.

Thanks, that looks awesome! I've found things with heavy ground planes such as the SIMM slots on SE/30 are easier to desolder with a SMD rework station's hot air blower than desoldering gun. I've used the desoldering gun on the through-holes after I've picked the socket off to clear the holes...

But what i'd really want is some redesigned full motherboard replacement good old chips from corroded boards could go into and have some modernization for these memory modules (or just soldered-on maximum capacity RAM). Saved space would provide enough space for integrated upgrades, such as...

I guess one thing such a module could do would be battery-backed RAM for read-write RAM disks and such, and could incorporate the ROM-SIMM functionality too, since they're on the same address and data paths afaik.

Since 72 pin SIMMs are more affordable in higher capacities and they're electrically compatible with the 30 pin SIMMs. Each group of four 30 pin SIMMs map to a single 72 pin one. So how about some board-to-board adapter with two angled 72pin SIMMs to replace the eight 30 pin ones? Or even...

One option could be manufacturing adapter boards that mate with the SE/30 (or other model) motherboard via solder tabs, also some later era LC/Quadra/Centris models with the ROM socket solder holes unpopulated and either have the ROM board directly on that, or have that board have a new ROM SIMM...

It could also operate from a small battery and go into some sleep mode whenever it's out of termination power and could have some "ready" led when it's booted and running. Therefore, it'd sense the termpwr as a wakeup signal and be ready in a fraction of a second while the Mac is still doing its...

I figured this one out. Right next to one of the caps with intact pads there was slight solder overlap with the traces next to it, so the solder joint was interfering with signals going to the floppy drive and sound chip. I removed the offending cap; its offending leg was off by a mm or so...

I also guess termination power isn't enough to power a raspi even in some underclocked low power mode? Because if it was enough, you could just power it like that without any extra USB thingies. I'd also vote for a USB-C connector if you go the USB route, since those will be more plentiful soon...

So, I was using my Quadra 610 as usual since it's a pretty quiet slab with builtin Ethernet and has 68MB of RAM allowing it to run most of the stuff I've been throwing at it. Then it started freezing randomly and eventually no longer powered on, just having chimes of death. I tried reseating the...

So, couldn't you just use the 5V pin on the GPIO header of the Raspi to power it? That's what I do with most of my Raspis.

Thanks, I did some assumptions, so I stand corrected. Anyhow, I assume nothing comes out of it until it's sensed the monitor plugged in, and if it really is reliant of drivers / some utility, I'm pretty much screwed since they're nowhere to be found. So far I had my run of checking Macs that...

From the description, there's something on the monitor interface itself that'll trigger it into operational mode when the right monitor is connected, and goes dormant when nothing is connected. This makes it much more difficult to figure out what the signals on the DB9 do. However, the logic of...

It probably has no drivers, so getting System 6 or earlier should probably make it work by default. The next thing is figuring out how to make it output an image in case it's not doing it automatically when the System version is right.

Anyhow, the problem still persists. I'd greatly value some information of capacitor traces since I think that's the most likely source of issue. If someone manages to remove caps without damaging the pads and taking a photo of that, it'd be perfect.

And if someone wonders about the battery, I did the CR2032 mod on it like I've done on my other compact Macs. That was the primary motive to open them up, and another topic entirely is how much work I'm going to have restoring my SE/30s, since the capacitors had leaked their juice all over and...

Hello, I was inspecting this Macintosh SE I aquired a couple of years ago and how to get its graphics card expansion going. Apparently it's built for a 1280x960 resolution monochrome display at 66Hz, so a 17" or 19" 1280x1024 VGA display should be able to handle that. However, my issue is...