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Just an update, my PCBs came from JLCPCB, I soldered up the connectors I got from DigiKey, and used these cables that I got for $11 each after shipping. I tested all 5 and they all worked well. video out seems fin on both the Mac and the PC side, I don't see any artifacting, but I'm also only...

I hadn't heard of that issue. I have probably 25 BlueSCSIs (almost all v1) and haven't had any issues, although most of my machines on 030 and slower machines. I'll have to keep an eye on it, as I also have BlueSCSI in my PowerMac 6115CD that I've had for a while. I don't boot the machine...

Yeah, that was from the IIfx. I actually buttoned it up after getting it cleaned, working, the case retrobrighted, and the battery holders replaced with a 3xAAA holder I can access without removing the drive bracket. Also, it allows me to put in rechargeable batteries which I've found much...

Feel free to use it. Or I can try to take a better photo once I’ve gotten through all the machines. I’ll also try to grab some better photos of the black one. There’s actually a hole in the side because it was fused to the battery holder and the flathead punctured it as I was prying it loose.

Did you ever get anyone to test these out? I just acquired a IIfx and it only has 8MB RAM. Would love to make a set of these to bump it up. Also, I would probably need assistance sourcing the chips to put on the board.

So, I decided to do some more testing with the board and tried to power it on. A component started glowing, then popped. Turns out it was one of those tantalums (the one at C1). It popped good, and ripped loose a pad when doing so. Fortunately, it appears they designed the board to accept...

If you need more data for your spiciness index, here's a nice lineup of the batteries I've pulled out of these machines, by type. My experience in this batch matches yours. Every single Maxell was in terrible shape. The Safts also did not fare well (at least one survived). The Tadiran...

I started with a spray down with a hose, and a mild soap. it was still very dirty in some areas (mostly the front and the top near the front. Also, the case had some sharpie that came off with a bit of IPA and soft rubbing with a magic eraser like product. Weirdly enough, there were numbers...

That's good to know. The Centris machines were some of the worst, but hopefully I can salvage some and if the 800 is too far gone, I can give that a shot. Question on the towers: the bottom metal shielding is basically gone at this point. Does it server a critical purpose and will there be...

Yeah, I’m doing a test cleaning on one now to see how the results look. It was still pretty splotchy after a good 15 minutes of scrubbing and rubbing with a magic eraser. It’s in the UV light box now getting an extra long retrobright session. I’ll post the before and after photos shortly. I...

I was thinking the same when I was going through my exploded batteries and the intact ones. All the horrific ones were Maxells. However, as I was thinking I have never found a Tadiran battery leaking, I did come across one that appears to have started leaking. However, given the state of...

Started trying to chip away a bit tonight. The PSU in the IIfx but the logic board seemed pretty good. Here’s the before and after.

Oh, and here is the total list of things I picked up: Computer Qty Notes Starmax 4000/160 1 No case in the middle Mac SE 4 One booted into MacOS from HD Mac Plus 2 Quadra 800 1 Battery bombed Quadra 840av 1 Battery bombed Mac IIci / IIcx 4 Quadra 650 / Centris...

I'll post more in a bit, but I responded to a FB Marketplace post where the OP claimed "Around 100 computers, printers, scanners, and keyboards". No price, and the pictures showed some pretty dusty machines stacked on some shelving in what looked to be a shed. I looked at the posting's...

Yeah, I'll need 4. Usually the minimum for PCBs is 5, so that would likely save me a bit of money, and then I would have several functional DOS compatible 6100s to let the community have (I recently picked up a large number of machines, and I don't want to make a profit, but would love to get...

So, like I suspect many others, I picked up a Monitor /// recently (two actually, but only one had this issue) that had a tear on the mesh screen that I believe was to be a sort of anti-gear coating. When I removed the case, I realized it was just mesh attached to a plastic frame. I...

Any update on this? I just picked up a massive lot of machines and there are 4 6xxx machines with DOS compatibility cards. No cables. This could come in handy for the future owners.

So, I got a replacement video controller ROM from JCM and no change in behavior. This may be beyond my equipment and skill to continue troubleshooting. I've not replaced nearly everything in the video schematics diagram. I suspect maybe the video I/O is working well, but the instructions on...

Sorry, yes. many times on old caps it is MF (vs mF) which would be mega. Sometimes you would see UF instead of uF or µF.

Pretty sure that is just how some manufacturers printed microfarad when they couldn't produce the µ character on their caps. It certainly is not megaFarads