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UE8 is making good contact at all of its legs. I did measure continuity at the top of the leg nearest the chip in order to make sure the leg/pad contact was good as well. Here is what it looked like after the cleaning. There's still some flux on the board from the recap, but I don't think that's...

Hi all, I decided to document my latest project board - yup, another battery bombed SE/30. Now, some photos! This is how I received it (yikes). Here's what it looked like after a very thorough cleaning. This is where I'm at now: Battery holder removed UD1 removed, cleaned, replaced RP4...

I had a similar problem with SCSI devices on my SE/30. Turned out to be one disconnected trace from the SCSI chip. I bet if you probe around your SWIM you'll find a broken connection somewhere.

I have a 575 that lost red. Adjusting pots didn't do anything. Some days it would start up and all colors would be great, and other times I'd be missing the red again. I poked around all the solder joints connecting the neck board to the analog board (to see if there was an intermittent...

I know what you mean with the Sony sound cards. I have a few, and they're all disgusting from cap goo. Maybe one of these days I'll get around to repairing them. Good work on the Mac TVs!

I was able to finally get my platform.io extensions working right to flash the modified code to the BlueSCSI. Well, results speak for themselves and I'm very impressed. I tested two systems briefly and found a modest increase in both write and read speeds. I know, I know, I didn't use SCSI...

Don't know how I missed this thread until today... I'd try it myself if I wasn't still having issues with VS Code extensions. In the event I am actually able to get it flashed, I'll post an update. Great work Eric!

Not only did you repurpose part of your wife's workspace, the fact that she actually helped you organize tells me you've got a true keeper! If I came home with all this, I'd be sleeping in the garage with the computers... HA

I wanted to share this beauty I picked up last night. You already know it's battery bombed (aren't they all). Here are some photos for fun. It came with a display card, networking card, and RAM of unknown capacity. I figured I'd share my progress here in the hopes that it's entertaining and...

Here's my idea of "fume extraction". Thankfully these past few days have been warm enough where I can open windows and leverage a cross-breeze as well. The mask is a must though. Can't smell anything with it on, and it filters organic vapors and particulate matter!

Exciting update to share tonight - found the culprit. One of the address lines from the ROM was not connected to the ASC. I didn't want to remove the entire chip, so I ran a bodge on the bottom side of the board from the ROM SIMM pin to the via connected to the right pin on the ASC. When I had...

Apologies for the click bait title... I couldn't resist! Needless to say I'm working on a troublesome SE/30 which appears to be in "jail". When I first received this board it did boot to a cursor and flashing disk, which makes this all the more frustrating. Thinking it would be simple, I did the...

Exciting updates this evening! @Zane Kaminski's revised board design is up and running well. System boots and operates normally. The card also fits perfectly in the chassis. If anyone has any specific tests or benchmarks they'd like to see performed, I'm happy to run them.

As was suspected, the L88M chip runs very hot. During benchmarking in my 575, ~3 seconds was the longest I could rest my finger on the surface. I also have a 1994 68040RC33M and the stock 1993 68LC040RC33 I tested. During benchmarking, I could rest my finger for ~8 seconds before these became...

Interesting! So something like the below image would be indicative of a later revision chip? I wonder if the above evidence is enough to go back to the seller and question the authenticity. It's a fine line between giving away everything we know about fakes versus obscuring it and simply...

Thank you for the information! To be honest I haven't tested the processor yet, but if I understand correctly, it would show up as 25MHz in my Q700 and 33MHz in my LC575? Who knows if it even has an FPU! I wish we had a tool to determine "rated" speed. I suppose heat output could be used to...

I recently bought one of these chips from an eBay seller out of China as an "experiment" I guess you could say. I took a couple of photos from my microscope to show some differences between a known genuine XC versus this questionable MC chip. I scrubbed the top of the MC chip with IPA, and none...

If the hard drive is known good and has been tested in your working SE, I would think it's still a power issue (especially if you hear the drive losing speed). Your SCSI chip could be defective as well, but I don't know how likely that is. Do you have any external SCSI drives you could test the...

Here's my "lab" space for WIP type stuff. My wife is very understanding of this hobby and allows my mess in this room of the house, but I have to admit sometimes I've been guilty of spilling out into other rooms!

The U8900 fix (when properly executed) works wonders on video issues for the 2012/early 2013 15" retina. However, you appear to have a A1286 model. To my knowledge these did not have the same issues as the thin retina machines from that era. As was mentioned, the 2011 models had actual GPU...