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Yeah, I recently switched from using the sun to building a UV box where I have much better control over everything. I've had a few splotchy results because I think I left it too long in the hot sunlight and the peroxide dried or there were air bubbles formed under the plastic wrap. Since...

So, I was able to find enough functioning floppies from my box of estate sale bargain bin floppies to cover the 3 disks needed for DOS 6.2.2, one for the Apple utilities, and 6 for Windows 3.1, and now I officially have a working dual boot System 8 / Win 3.1 machine! Pics of the floppy...

Progress update! I removed the CPU, took off the heat sink, applied new thermal compound, and reseated the CPU (it was properly aligned when I removed it, and appeared to be fully seated). Tried one more time to boot and IT WORKED! I get video out. I was able to create a DOS boot disk from...

Sadly, no. I'm in the Charlotte, NC area. I'll check around locally and see if I can find one. When I looked, the CPU seemed seated properly, but I might try to pop it out and re-seat it. Really appreciate all the advice!

So this basically turns your SE into an LC form factor?

Recently picked up a 512k from Facebook marketplace as a non-booting machine. After pickup, quickly removed the battery (which had started leaking and actually corroded the battery holder metal tab to the point where it broke off when I removed the battery. Anyway, I inspected the inside of...

Unfortunately, my new SIMM arrived and I was still unable to get it past the "PC is booting" phase. No video out on the PC side at all. I did try with the version of the PC Compatibility software, running on System 7.6 and still no luck. I also added a PRAM battery temporarily to make sure...

So 400mW won't be a problem, there?

Any other source for those resistors? Unfortunately, it appears only bulk orders of 100, at $10 each would mean I'd spend $990 dollars to have 99 spares. I'm just looking for a like-for-like replacement, and mine is similarly burnt up.

Still no luck getting it to get past booting. I swapped a SIMM from the main board to see if it would change the behavior. Other than making the Mac OS side of things not boot with all extensions on, the behavior was the same. No video out. I also tried hooking the video out to two different...

OK, I got System 7.5.3 and 8.1 installed on a bluescsi and installed PC compatibility 1.6.4 on each. I created a new DOS disk image file and mapped it to the C drive. So I believe the PC Setup app can tell there's a DOS compatibility card in the computer. The problem is when I switch to the...

Nice. Thanks for the information. I definitely noted the connections to the CDROM and main logic board when disconnecting the two small ribbon cables. I was able to get it reconnected this morning. I ended up hooking up the machine (with it's octopus connector) to a known good VGA monitor...

I can definitely see the problem with the space. That setup you have essentially looks like it takes hot air from the PPC heatsink and blows it onto the 486 heatsink, and then it bounces off the board and gets moved across the PPC heatsink.

I picked up a boxed 6115 a while back and didn’t do anything with it when I first got it other than to open it up and remove the battery, then try to power it up. Unfortunately, I got no video out on the multisync 15” monitor that came with it. So I set it aside, having other more pressing...

I think you got your answer. It's going to be nearly impossible to tell without removing the board. There are a lot of obscure 3rd party accelerators out there. You might get lucky and find someone who has the same board and would recognize the underside of the board without any markings, but...

Some of my items have the original boxes, in various states, that I'd like to store, but don't want them to be destroyed. I like to use my vintage Macs, so the items are not stored in the boxes, but I also need to make room in my bonus room for actual living, and was going to move the boxes to...

From my understanding, this mod will work with the Takky mod, although I wonder if the additional strain on the analog board from the VGA mod, combined with the additional power needs for the PowerPC chip will shorten the life of the analog board. Also, with the Takky mod, you're already...

You can reach the iMac G3 battery through the opening meant for installing RAM or Airport Cards. It's not super easy, but not too hard to get it out.

Appreciate the reminder. I was looking at my collection and couldn’t remember if I had taken the battery out of my TAM. I get kind of lazy with my PowerMacs because they have the 4.5v box batteries that I’ve seen fewer horror stories from. Popped open the back and sure enough, I still had the...

I'm not sure. I bet @Kay K.M.Mods would know, though.