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thanks @jmacz for the insignt, I'm looking for suggestions here. I will do some more tests enabling/disabling the cache, but what puzzles me is that the 68040 with the Rominator becomes so host that I can barely touch it even before enabling it in the control panel and the screen freezes, while...

I can measure a stable +V4.97 and +V12.7 also during the performance test the logic board was already recapped the analogue board is "brand new" from an unused Apple stock (a lucky find) the PSU has not been recapped I reinstalled back the stock ROM + Mode32 + System 7.5.5 (of course unpatched)...

I am experiencing difficulties with the Carrera040 (Bolle's version) and the ROM-inator II on my SE/30. Observations: Boot Behavior: The system boots in 32-bit mode using the ROM-inator II with a patched System 7.5.5. System 7.5.5 was installed clean and is the Universal version. Extension...

I simply reflow some solder on the pads and keep the original sockets

nope

in my case, if the mac is not connected to the Internet the boot process takes a minute more . it takes too much time to realise that there is no connection and stop trying. The boot process is probably running in a single process, no threads, but more expert guys here can contribute I...

is there a replacement? or can I simply leave open the one that is broken o should I try to restore the broken pin? N .. does it stand for neon? :D :D

wow what are those for??

some updates here the board was cleaned with the magic sponge LF2 despite the look, is not shorted and it tests 25mH not like the 15mH @daanvdl measured (thanks), but I'll keep it. LF1 looks terrible but there is no short and it tests 0,4mH and 0,5mH respectively L10 L6 test 0.2mH, I added a...

Thank you, @daanvdl, and thanks for the PCB recreation. Could you provide the specifications for the line filter? Would any line filter work? I have some non-functional switching power supplies, and I was thinking of measuring the inductance to ensure a proper fit. Is that the correct approach...

I'm browsing for this info, I got the Apple one, but I'm looking for the BOM because the inductors L9 L10 are probably gone and also the transformer, LF1 LF2 It's unclear if the circuit of the reloaded and its BOM correspond to the original Apple board. I'd like to avoid the reloaded,

@cheesestraws Ah ahn ... thanks mate. I was underestimating this aspect. I found this project for the reloaded board https://github.com/daanvdl/Macintosh-Analogboard any other source to recommend? BTW: the fire started from the RIFA capacitor!

I don't know, I was given the Plus for free in this condition.

this is the beginning of the repaying of the Mac Plus that went partially on fire https://68kmla.org/bb/index.php?threads/classic-lciii-plus-si-for-for-free.48801/ before how splendid! :D it's better not to be frugal and replace all the darkened resistors, diodes and capacitors. What...

@LaPorta ... I feel like I’m nearing the end of this journey unless I have an epiphany or receive some helpful advice here. As described in this thread: Mac SE/30 Silent, No Startup Bong, the short appears to be in the middle layer of the PCB. I’ve already cut the traces before they reached...

I can’t say for sure—it could be, but all the chips are gently warm. In any case, I must locate the short; otherwise, this will be a dead end. Since I’ll need to desolder the CPU for the reloaded board anyway, I might as well give it a try. If the original PCB design were available, I could...

I discovered that A9 and A8 are shorted. I initially noticed this issue, but it seemed to disappear, so I assumed it had been resolved after isolating some of the traces. I couldn't find the source of the short at the time, and since it was no longer present, I decided to proceed. However, the...

I did some more tests bank0 bank1 ROM sound screen - - BMOW happy pattern 4MB - BMOW happy or happy + death pattern/cursor - 4MB BMOW happy pattern/cursor 16MB - BMOW happy + death pattern/cursor - 16MB BMOW 2 death sounds pattern the cases with the stock ROM is always the death...

the pattern is not affected by the RAM size AFAIK the video RAM is not in the RAM SIMM modules but is in the 41264 chips the mouse pointer does not always appear, but if it does it's only with 4MBx1 RAM modules The rominator II plays two sounds, the happy chime and then the sad Mac ... I...

I have some good news—finally, it’s starting to show signs of life! However, there’s a behaviour that varies depending on the ROM image installed It plays the chime of death, but the response differs based on the ROM: With the stock ROM, it displays a pattern on the screen. With the 32-bit...