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Update: I believe this cart is missing 7 pcs 100 uF 25V caps unless I messed something up dealing with out of stock items. 1572-1039-ND should be a drop-in replacement for those parts. Everything else looks good so far.

For no good reason I'm trying to go beyond the 36MB I currently have in my Mystic CC. I've read that modules need to be single-banked if 64MB or 2K refresh if 128MB (http://www.colourclassicfaq.com/mobo/mystic.shtml#Q2.1.6). I ordered a 64MB module from MemoryX that they claimed worked with the...

I've got the WRP proxy @Crutch mentioned working. Haven't actually done an extensive amount of browsing on old hardware, though. I used the Docker image referenced on the Github readme and it works perfectly on my QNAP NAS, zero configuration needed. I might still look into some of the other...

This is awesome, thank you! The 0.47 uF 100V radial is now obsolete. I think 493-4723-1-ND should be an acceptable replacement (same 105 C rating).

I haven’t poked all of the corners, but so far no issues. The 3.1 update installed fine and it’s on the internet now.    I did try popping in the Turbo 040 to see when it would fail. The A/UX launcher runs until the point where it switches from the Mac boot environment to A/UX and the whole...

Shortly after I posted that it actually finished. It chugged through the rest of the install without issue and booted into A/UX. This is the first time I've booted A/UX 3 on an SE/30 with a 50MHz PowerCache and it seems surprisingly usable compared to my past experience. Boots in about 2 and a...

@cofford, what did you do to get the device to initialize with HD SC Setup? I've never managed to initialize any of my SCSI2SDs (V5.1 and V6) with the patched version of HD SC setup. It just sits there "checking format" forever. Lido or silverlining works every time, though. This is relevant to...

Thanks, @dkjones96! I ended up doing it option 1 myself on one CC and am so far pleased. The geometry is good but the focus is a little off. Haven't tried tweaking the focus pot yet, though.

I've used the Saft 1/2 AA cells mentioned above with success. In machines that I think I may forget about, I've desoldered the 1/2 AA holder and put in a CR2032 holder in its place: https://www.digikey.com/en/products/detail/keystone-electronics/1058TR/5118854 The CR2032s are a nominal 3.2V...

I believe there are members here that have been successful installing A/UX from (and to) a SCSI2SD. You just have to write the A/UX image to the SD card and set the device type to CD-ROM I believe. I haven't tried it yet, though. I did try out the ready-made A/UX 3.1.1 SD image from the unix...

As noted in many CC boot failure threads, the Egret chip near the battery tends to get the brunt of the cap goo. One it fails, that kills soft power.    I have had success removing the egret with hot air and thoroughly cleaning under it. Soaking in IPA may be good enough, too.   

Too funny. Speaking of floppy drives, I realize one of them does need to be cleaned, so there is always that. I’ve got a few Color Classics that need attention, too :)   I picked up two SSP-300SUBs from Newegg for $63 USD...

That's pretty interesting. With my recapped Sony PSUs I had adjusted the output to be 5V on the dot with a calibrated meter. As you can see from the o-scope trace earlier it's still bang on with the accelerator loading it up. Conversely, my (now dead) Astec was only putting out 4.84 V which...

I'm a big fan of the rule of 3. I also end up with a 9+/10 machine, a 7-/10, and a box of parts at the end :)   Plus three of anything together seems to be when it starts looking impressive like your stack there.

Alright, mark this as solved. I took the nuclear approach and swapped in a new power supply, a Seasonic SSP-300SUB as described in this thread: This resolved my issues with the Turbo 040 and PowerCache. I have not measured the 5V rise time with the new power supply but I would expect it's...

Oh, of course. I was thinking of the male-female ones that I @joethezombie used earlier in the thread. It sounds like you used female-female standoffs or maybe had it with the male end fastening the PCB? Anyway, I ended up using male-male M2.5 standoffs with screws on both sides: Finished...

Bringing this great thread back from the dead as I'm trying to resolve some PSU issues with my SE/30s the lazy way by swapping them out for SSP-300SUBs (apparently the new equivalent to the SSP-250 discussed here). @Crutch you mentioned you drilled and tapped holes for standoffs to support the...

I am hoping to use a simple S-Video switchbox for the same purpose (less glamorous than a microcontroller, but I think I can handle turning a dial). I hadn't considered the hot plugging issue, though. Looks like Focus Bus Tool and ADB Renewer are candidates for the type of utility @cheesestraws...

When it shows the floppy icon have you tried booting it from the floppy? The SCSI chip is adjacent to three capacitors so that can result in the type of trouble you're seeing. If it can boot form a floppy disk after showing the flashing question mark it seems like that could point you in that...

From what I've read there are many patterns that can indicate different types of failure. When I have a RAM/ROM issue with my working boards the screen looks like this: That's quite a bit different that your zebra bar pattern (which I think is maybe the real "simasimac" pattern). I would try...