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Two-way shipping would be costly because I am based in Japan and because USPS strong-armed Japan to increase prices by 20% in June 2021! Besides, if @Kay K.M.Mods can test an Ethernet card in one of his Mystic machines (at a high clock speed), that would be all that is needed.

If someone ever ships me a COMM slot card for my LC575 Mystic motherboard, I will be sure to test that! :-) I have no idea if the slot works or not because I don't have a single card to put there. Maybe Kay can test that. But if any of you absolutely hate your Apple IIe cards and are looking...

@Drake , thank you for testing. Your mention of the "resistor mod" means you have the stock 512x384 resolution with your LC575 Mystic motherboard. For those of you following this discussion, the resistor mod is used to make System 7.5.5 to 8.1 work without any software hacks. (See "Logic Board...

I spent my lunch break testing that, in fact. I first booted into 7.1 at 44.44MHz, verified AppleTalk was off (in the Chooser), then rebooted into 7.6.1, which was fine. I confirmed AppleTalk was off there too, then shutdown, pulled the motherboard, flipped the switch on Spicy O'Click to the...

Very interesting. Thank you for that info. Although Systems 7.1 and 7.5.5 boot fine (unlike 7.6.1 & 8.1) at overclock speeds higher than 44.44MHz, when I try to open the AppleTalk control panel in System 7.1 at 49MHz and then click "No" when it asks me to activate it, the machine freezes. So...

It's really like Scotty in That Which Survives (photo below), where the Enterprise blows past Warp 13. It's a speed unlike anything achieved before! That's what it's like to hit 51.1MHz on a Mystic with @Kay K.M.Mods Spicy O'Clock! But again, I get pixel dust (pixie dust? 🧚) as the arrow...

I disabled AppleTalk from even loading, along with everything marked "open transport." In fact, I even removed the Chooser in hopes of getting it to work. Again, sometimes OS8.1 boots but mostly it freezes during the boot sequence. I can boot 7.6.1 more often than 8.1, but it's still pretty...

@Drake What OS's have you been testing with a high overclock? (Anything higher than 44.4MHz) I can get System 7.1 to work fine at any stable clock speed. System 7.5.5 wasn't too hard to get working at high clock speeds, and once working it consistently works. But System 7.6.1 and OS 8.1 have...

@Drake I must say it is very interesting that you could overclock the LC 040 CPU to 47MHz. I am unable to get my LC CPU much beyond 43MHz. Here's a photo of my LC CPU... But with a full FPU edition 040, I can overclock to the maximum 51.16MHz. That is with the same 60ns VRAM and 60ns RAM...

Hi @Drake , The SIMM in the upper left in your photo shows a good amount of capacitance on it, but it also has a transistor too. Not sure if capacitance on the RAM SIMMs really matters or not for stability at super high clock speeds, but since OS-CON capacitors are the ticket to the highest...

I've been testing all day with Spicy O'Clock set to 49.43MHz (Clockometer value). Again, I have the VGA (640x480) Mod installed. Before the VGA Mod, the highest stable speed I could get was about 49.29MHz (serial ports not functional though). After many hours of testing at 49.43MHz using...

Thank you for posting your findings. The CPU I’ve been testing was purchased from UT Source and claims to be a 40 MHz rated 68040, but the markings came off very easily so I believe those markings are fake. Even so, when I’m about to say applies to that particular CPU, which runs at about 60°C...

I'm happy to play topic guard only to ensure freedom reigns. Obviously, it would be down right silly to start talking about vacations in Hawaii in this thread, but a little Wild West style deviation on a given topic is good for the brain. Even so, I look forward to all the information you can...

@Mr. Fahrenheit Thank you for posting all of that for public eyes to see! I will try to make reference to this thread in my overclocking video so your excellent information garners the attention it deserves, in addition to putting a link in the text description too. For those wanting more...

I am truly touched by all of the kind advice. I was especially moved by what you wrote, @Kai Robinson. That is both amazing and shocking. What you went through was absolutely awful. For someone to visit an employee in the hospital immediately after a heart attack, only to hand them a laptop...

いつも親切な言葉を頂いていますので、誠に有り難う御座います。下記はとても長い英語の返事なので、すみませんね、Kay！ Very true... I did not get enough sleep in January. That video took me the entire month of January to finish. On more recent days, I slept only 4 hours each night. Last night, after chatting with you, I went home, ate dinner, and...

I pin comments made by myself and others. Most recently, for example, one person noticed a small ribbon cable I had removed but neglected to mention in my mid-2015 15" MBP speaker replacement video. He was not careful and observant when he followed my video and apparently broke that tiny...

There's actually one more possibility which I describe exclusively in the text description under my video on Youtube. Specifically, you can cut down an LC575's Analog Board to fit inside the CC. See @Kay K.M.Mods blog entry about that. Tyler Smith also did this article about it too. And since...

Thank you for your kind words, @Stephen. I can only add that if anyone has a stock Color Classic you want to mod to 640x480, then you must chose Method #1 or #2 as described in my video. I implemented Method #3 because it works with my LC575 Mystic motherboard and results in the least strain...

Fellow Color Classic Mystic lovers, wouldn't you like to play Marathon, Dark Forces, have more workspace in Photoshop, and access all those amazing CD-ROMs that otherwise won't run on your 512x384 screen? In this new video, I review 3 hardware methods to achieve a higher 640x480 pixel...