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Bravo!!! 👏 Awesome result!! :) I usually use painters tape over the little icons to avoid filler getting in there.

Yup, what @croissantking said. My bricks are two PSUs in one.. the battery side limited to 1A.

Yup.

Still running strong so far... 🤞

I might actually have a combination of problems and because of the permutations and the lack of a reliable repro, it's difficult to debug. I have found multiple issues including some found yesterday. PSU was dead, replaced, and then had the rails coming up separately issue (before). C6...

Left it running MacTest Pro mem/disk tests in a loop... walked away for a few hours and came back, and it's crashed. So still there. Will try the ZuluSCSI in passthrough tomorrow. And then attempt to find a non Zulu to test with.

I prepped a ZuluSCSI with raw passthrough but haven't used it yet. I'm having a hard time reproducing the issue all of a sudden... it's not happening. The last thing I did was replace the remaining tantalums, swapped the internal SCSI chain NCR 53C96 chip, and ran some more deoxit on the...

Hmm, no. I have not. I need to look into that. Yeah, it's the only device in this case. I have tried the built in termination this Q950 seems to be special in its termination requirements. I've tried various flavors. Lucky... the only drive I have (I guess I could try) is a working...

Yup, 3 of them.. the stock one (with lots of intermediate connectors), a similar length one with only connectors on the ends, and a short one with only connectors on the ends. Same result.

Haha, thanks. Interesting.. do you have anything in your ZuluSCSI.ini file? I have ZuluSCSIs deployed across my fleet. Haven't had an issue in any of the machines including my Quadra 700. On this Q950, an external ZuluSCSI mini seems to work fine and I have been unable to reproduce on the...

Replacing the NCR 53C96 (for the internal scsi bus) with another did not help. Back to the drawing board.

My previous note that it happens on both internal and external might have been incorrect. I think I may have seen it on the external after the boot image was already corrupted on the internal. I have been just trying various tests and have been unable to reproduce with a clean image on the...

Ok bummer... it came back.. harder to reproduce now but still there. I have stopped overclocking but doesn't matter. Saw a new symptom as well as the previous ones... this time it gets to the Welcome to Macintosh (the usual dialog box) and there it gets stuck... the color traditional mac icon...

I don't want to jinx myself... but going on about 2 days with lots of attempts to reproduce the strange crashes during boot on my Quadra 950 but unable to as of right now .. this, after I swapped under spec'd stock tantalums on the logic board. One of them (C6) was bad after I took it off the...

Still cannot reproduce the issue. Should have been able to normally by now. Keeping my fingers crossed. Unfortunately, I deviated from the scientific method this morning (after countless attempts to reproduce). I should have waited for a few more weeks but couldn't resist making some additional...

I went through and replaced all the underrated stock tantalums on the logic board. I determined this based on @Bolle's Q950 schematic and looking for what rails they were on. After pulling each one, I tested them on my LCR meter. All of them had a capacitance within spec except one. The C6...

I had posted a while back the ROM patches and the patched ROM for skipping the memory check for an SE/30 here: https://68kmla.org/bb/threads/macintosh-se-30-rom-modifications.49789/

👍

Yup!

Glad it worked. The memory test happens during the blank before the first gray screen appears. The delay after the gray screen is usually when it's searching for the disk. I usually get that delay when I had previously selected a SCSI disk/ID to boot from an on boot that disk is missing. It...