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There are a *lot* of SMD caps inside these machines, but thankfully, there are only two kinds. Here's the breakdown: Logic board 23x 47uf 16V 3x 33uf 25V PCI riser/graphics card 8x 47uf 16V CPU card 1x 47uf 16V The attached photos show where and which ones they are. (Sorry that they aren't...

Got the brackets modeled and printed. They fit in the drive itself, but I haven't glued them to the bezel yet. I'm planning on making a short video about these and another PowerBook-related 3D printing project, but here's a teaser.

It would have been either Apple or Quanta who designed the bezel. The 1400 was an interesting machine in that the chassis was actually a "whitebox" design from Quanta. In order to get the machine to market faster (and bypass internal dysfunction), Apple basically gave the motherboard schematics...

I've got two PB1400 CD-ROM drives this has happened to, and on my to-do list is designing some 3D-printable replacement brackets that can be glued to the original bezel. It's crazy (though not surprising, given the era) that Apple used such small/flimsy brackets, though I suppose the drive...

Here's a still from the video showing the component side of the board, for those curious. The machine's back together, but if there's serious interest from anyone who wants to reproduce it, I can pull the drive back out and scan both sides of the board. That said -- given the components on it...

Having done a Takky mod about 20 years ago, IMHO it's not worth it these days. The Mystic mod is reversible (and can require no hardware mods if you're willing to forgo VGA and use the system enabler trick), whereas Takkys were finnicky at best and required serious permanent changes to the CC's...

So I had both of my 2400s out this weekend and remembered to test them for CardBus compatibility. In short: On the 180MHz model, nope. I tried hot-plugging a card in, and as soon as I did, the Finder crashed and reloaded. The machine kept running, but when I went to shut it down, it froze. I...

Does that modification to the board affect its ability to work in a 575 chassis? (A CC II is on my list of machines to get. Someday!)

Wow, nicely done! I'm curious about the screen burn-in, any idea what application it's from?

So I tried Speedometer 4.02 on both machines and it works great -- the results it generates feel accurate to me, considering the systems. MacBench, however, was a no-go on one of them. I tried versions 3 and 4, and for both, they just hung at the splash screen. I even wiped the machine and...

I'm working on a project where I need to benchmark a couple of Macs from the 1993-1995 era to see how they compare, at least in terms of computational performance. I never really got too much into this during that time period, so I can't remember many benchmarking utilities. Can anyone recommend...

From what I recall, the 2400/240 model officially supported CardBus, and considering that the machine has its CPU on a daughtercard, I'd be *really* surprised if Apple bothered to redesign the motherboard just for that feature. Architecturally, the 2400 and 3400 are similar, and the 3400 also...

The adapter provides power to the 2.5" drive, and does indeed "move" the SCSI ID jumpers to the adapter's PCB. Here's a shot of the adapter connected to a drive; the SCSI jumpers are on the right and the power input is on the left.

Handspring Visor: "Am I a joke to you?"

Interesting, that's a different Twiggy prototype than this one: https://www.applefritter.com/content/macintosh-128k-prototype-twiggy-drive So I'm wondering if it's the second machine from this story: https://www.cultofmac.com/239280/twiggy-mac-lives-quest-to-resurrect-worlds-oldest-macintosh/

I'm a little late to the party, but I picked up one of these earlier in the year and it works as advertised. Not as much geek cred as building a PCB yourself, of course. http://www.cablesonline.com/25lapscsihar.html

I know that SE/30s can be *very* picky about RAM. I had a similar problem with mine, and was only able to resolve it through a lot of experimenting with different RAM combinations. The ideal scenario is to have all 8 slots populated with identical modules.