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Is R102 connected to the oscillator's ground pin? I can't see if there's a trace in that gap there. Mine doesn't even have R102...looks like a pulldown resistor on the oscillator's output? Yours looks newer than mine...

Do you have an SE you can try it in without the adapter boards for the Plus, just to verify the problem is on the accelerator itself? My Multispeed (that's my video :) ) had some cap leakage, but surprisingly the two data line continuity breaks I found were bad vias that weren't really near...

I just picked up this wonderful thing at VCFMW from @zigzagjoe Time for some shenanigans before doing something more practical with it... The Carrera CP allows on-the-fly switching between the Carrera and the DiiMO...

This is the user's manual and quick reference sheet for Connectix Compact Virtual 3.0 as distributed with many compact mac accelerators that had onboard SIMM slots for additional system memory.

That's a great idea!

I drove up from Pittsburgh this year with my wife and a friend (first VCF for both of them), and we all had a blast. It was great meeting everyone and just geeking out for a couple days. My wife and I won't be home for another few days as we continued up into Wisconsin to see family, so I...

Noodled around with an oscilloscope with the stacked LCII accelerator/NIC. Seems like this accelerator (and likely others) assume an expansion card won't ever be present. With the accelerator installed, the /PDS.AS line is never asserted. If I'm understanding things correctly, the LCII logic...

I was talking to some much more knowledgeable people than myself (zigzagjoe and @max1zzz) about this dual-slot PDS adapter, and they both suggested simulating a completely passive adapter by installing a passthrough on a cheap LC PDS ethernet card and stacking an accelerator on top of it. In...

I'm going and bringing my wife this year :)

:whistle:

Sometime in late 2000 I moved the build in this thread into a ludicrously large Supermicro SC760-A case. That was the first case I painted, sleeved, put cold-cathode underglow on, etc. That case housed two subsequent builds...a dual Opteron and then an FX-51/GeForce 6800GT SLI build. I found...

I agree the A500 is a better case...it's just not the exact one I used 26 years ago :rolleyes:

The slide-out tray is pretty slick. This is the case I was hunting for that I never could find:

Some Commodore gaming using the AV inputs. That WinTV card was grabbed off the free pile at VCF East this year...just happened to be the same one I had back in the day. Parents wouldn't let me have a TV in my room back then, but that card and some rabbit ears provided a sneaky workaround :sneaky:

In late 1998 I was 15 and I built my first PC...not my first computer, but the first one I built from scratch. Over the last year I've been gathering the same components I used back then with the intent of recreating it. The original specs were: Soyo SY-5EMA+ motherboard with 1MB L2 cache...

I'm putting together another SE/30 reloaded and populated it to the point where it should chime. However, I'm getting absolutely no activity on the address bus when scoped at the CPU. The symptoms are a simasimac image and no chime of any kind because the CPU isn't walking the address bus and...

Lol, this gave me bigfoot video vibes for some reason...legend of the mysterious laptop hoard...err, collector :)

Reloaded board completed and fully-operational...all Snooper tests passed! I already love this thing... From battery-bomb victim to a new lease on life. But...what's better than an SE/30? An SE/40! I guess it's a total Bolle-box now :) Also, I only had to pull the customs from one...

Signs of life! The reloaded board actually booted on the first try: At first I was only getting audio out of the headphone jack. After replacing the op-amp at UA9, I got a strong chime from the speaker. Now to populate the rest of the board and run some diagnostics...

JLCPCB...and yes, I had them populate the backsides.