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@dougg3 & @kefkafloyd Your recently posted findings seem to indicate that, regardless of whether R80 is left soldered in or removed, it should not matter at all to the Overlock (i.e., the conversion of an LC520 motherboard to an LC550). Is that how you both assess R80?

"IDE"? Sorry for my ignorance, but does this mean there will be a BlueIDE or similar drive that will, at long last, allow me to get a working SSD solution in my G4 Cubes? (They are IDE, not SCSI.) 🤞

What I used prior to the A2VI (with CayMac Adapter) on my IIc was the IIc to VGA by Plamen, based in Bulgaria. It's an otherwise excellent adapter if you don't need HDMI, but even it wasn't giving me a very large display area on my Eyoyo LCD. Note how much bigger the display content is on the...

I’ve heard some rear case fan speed instability on my CC as well, but nothing else is wrong so I’ve just learned to live with it. No clicking sound though and my fan may be a tad more stable than yours. I know this doesn’t help you at all, but just adding what relevant experience I have with...

Good to see you showcasing the A2DVI card... I have a IIc, so I am currently using that A2DVI card with this adapter: https://ko-fi.com/s/df19776817 I tried other HDMI and even VGA solutions prior to A2DVI, and I must say, A2DVI produces a better picture overall. Looking forward to seeing...

We need an Apple Engineer to leak the CC Analog Board schematic too!

Putting the entire BlueSCSIv2 (large relative to BSv1) right at the Expansion Slot can block some PDS card stacks and otherwise gets in the way. Having a comparatively smaller SD card extender in that location though won't create problems. Also, I use MacSD in addition to BlueSCSI, and...

I have a IIci but not a Q700, so I don't know if the slot openings are the same. Your Printable link makes no mention of the IIci. Do you know for certain it is IIci-compatible? If it is, I might have it printed at JLC. Of course, it would be nice to know if that same STL applies to the...

I have a IIci with a Radius Rocket in the NuBus slot nearest the case, nothing in the center NuBus slot, and a Radius Thunder 24/GT graphics card in the innermost NuBus slot. I'm hoping to order one of the SCSI Booster clones by @max1zzz , and it would be neat if there was a NuBus slot mount...

I cannot visually trace the side of R80 which leads to a tiny round thru-hole, but I can visually trace the other side of R80 which leads to this large round pad with solder on it... The same pad on the flipside of my LC520 motherboard... I re-checked visually 3 times and found it leads to...

Yes, I actually did forget about that your excellent post. And that is due to me being very forgetful about pretty much everything. Sorry. It’s that bad memory that led me to get into YouTube in the first place because I originally made the videos for myself so I could remember what I’ve done in...

As shown in my VGA mod conversion video, while the stock CC board does work with the 67Hz 84V 640x480 mod, the black borders at left and right of the CRT display area are thicker than when using an LC 575 or LC 520 board. And while it’s not technically a massive difference, it is noticeable...

I did indeed test my LC520 motherboard in my Color Classic with the standard 60Hz 68.4V "VGA mod" (640x480 resolution) installed. But as you may know, the 520 and 550 and stock CC boards are NOT compatible with the standard VGA mod, and that's why I more recently released a video about my...

@Fizzbinn you’re amazing! And @kefkafloyd , thank you too! I just posted the question about the 550 Rev. B board on FaceBook, so let’s see if that brings forth the final answer more quickly…

I just learned something new. Even though @Drake and Uniserver both mention the need to remove the 3 resistors R67/75/79, the Japanese book Doping Mac (published in Japan in 1997) says that in addition to those 3 resistors, R80 also needs to be removed... I only have an LC520 motherboard...

I’m afraid I’m now back to being confused. I think you’re saying I’m incorrect about the need for choosing one of two analog board types which drive your LCD? So… There’s in fact only one analog board type that you have made and sell? Saying it another way, how does someone place an order...

This is why I don’t get it… We all don’t think exactly alike. :-)

I still don't get it, but I am now strangely compelled to watch I Love Lucy episodes on YouTube.

I must say, that's impressive work!

@Mac84 , you're a star! 🌟 Many years ago, one of my SE/30 boards showed the exact pattern shown below, and at the time I posted in another forum to ask if anyone had seen that instead of the regular horizontal stripes, but no one replied back to say they did. Thanks to your Repair Guide, I see...