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@This Does Not Compute Wow! Your compiled info is what everyone needs to know! Thank you! More specifically, you name the Analog Board to Chassis screws as being MCMASTER 92525A205, which I Googled here: https://www.fastenersuperstore.com/products/299084/self-tapping-screws Pricing of more...

Your pin numbering is correct for UJ11. But you are saying that UJ11 pins 20, 21 and 38 need to be pulled-up to 5v via 10kΩ resistor. How did you determine that? Because on the schematic, I see pin 21 is tied to pin 24, and that is labeled READ DATA, shown to be an output according to the...

Does that mean you've never purchased the screws used to affix the SE Analog Board to the metal chassis? No doubt there must be at least one person out there who has, and I'm just curious if they went with an M3 shaft width, and then would like to know which kind of threads (as per what is...

Tagging @David Cook , as he might find this dialog interesting. (I myself found it interesting because the same person is both asking and answering!)

@Mac84 It's now just over 2 years since your last post in this thread. Did you ever get your card to work?

Yesterday, a viewer of my Macintosh SE & SE/30 Analog Board Recapping Walkthrough video asked me about SCREWS which affix the SE or SE/30 Analog Board to the metal chassis. It was a good question because I too have some missing. Here is a photo of the TWO TYPES which I have seen over the...

Wait… Has SiliconInsider (Dr. Antoine Bercovici) changed his business name to Jurassic Computing? Because those are his products, and yet I’ve never heard of Jurassic Computing. if indeed, those are being sold by SiliconInsider, then they will work fine. And I must say, I’m a fan of his gold...

I’m tagging @phipli because he might have some ideas. I myself and am very surprised to hear that you would need to use WISH I WERE on an LC575 motherboard to let 475 OC know it’s a 575! That’s just plain weird! There’s no harm in using the software like that though. But in answer to your...

It wasn’t my intention to force you out of this thread. But I would encourage you to start a new thread so that discussions about your particular situation and programmer and ROM SIMM can be discussed at greater length.

Friends, I humbly wish to clarify, without any offense to anyone, that this thread is entitled "SMC ROM SIMM Prototype". It is therefore tied to Kay Koba's products found at his website here: https://en.infinityproducts.co.jp/product-page/smc-rom-simm-card...

Welcome, fellow SE/30 owner! Thanks for choosing TinkerDifferent. Looking forward to seeing how your project develops!

That's the one thing which always irks me about my Xceed cards. (I have the MacroColor 30HR & Color 30HR.) When I compare with stock video, stock video is brighter, without being blown out or overly bright (where the black surround starts to brighten). So if the 30video can yield 256 grays at...

I'm truly thrilled to hear that ResEdit hack on the Finder worked! And I apologize I myself haven't found time to test it yet. Fabulous to see 256MB fully accessible under System 6.0.8 (hacked Finder) with full acceleration too! And just so everyone reading this is aware, Optima did have...

The Optima page on Macintosh Garden has only a single download. No PDF manual is offered, sadly. But I downloaded and Unstuffed the file and found there are two versions, each with their own README files: The README for Optima 32 v2.0 says this... No mention of 6.0.8 :( The README for...

You are very welcome here, David. It's great to have you. Would love to see a photo of your signed-by-Woz LCIII.

Great to hear you solved the problem, but which tabs are those? The photo is a bit blurry. Maybe a shot of the full board would help put it in perspective. But regardless, I agree that a PROPER GROUND is critically important for those machines, and it's easy to accidentally miss that if it's...

I'd like to mention that I watched the video in its entirety (as all good videos should be watched), and it was a learning experience because I never knew anyone had done a MacSnap SCSI Reloaded. Look forward to hearing if ROM-inator Resurrections by @Kay K.M.Mods will work with the MacSnap...

The Synchr030/S documentation mentions a non-stock ROM as being very important, and in my video I stated it as being pretty much a requirement... "Required"? Really? Well yes, and for more reasons than just to become 32-bit clean. Because unless you want to sit through RAM checking for...

I read through this entire thread today. Curious what the use cases are for the card WITHOUT the full page CRT. Because those are extremely rare beasts that I don't often see. And if the intent is to use a modern LCD, is there any meaning to clone the card? I also wonder WHY there aren't so...

I never tested Optima, so I have no idea. I searched the Synchr030/S documentation, but there is no mention of even System 6 or 24-bit addressing. I searched through past emails between myself and YMK (because there are so many), and I couldn't find "Optima" as a keyword. I then searched for...