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So after recapping and fixing my Quadra 610 (I am very happy with getting this far!) I am looking to which os to settle on? Currently I've installed Mac OS 7.1. 7.5.3, 7.6 and 8.1 (via BlueSCSI). All seem OK although I did have problems getting the network/internet connection working with 8.1...

To be clear it's this one. I guess being surrounded by three caps makes it vunerable! That area is also the issue in this YT video by Mac84. Good luck!

I should add that was macOS71 and not 8.5!

Well I scarely believe it! After spending a few hours washing the board (again!), reflowing some more ICs then redoign some of the caps I'd previously replaced with no success I was about to give up. However. I dug out the meter once again. I'd previously tested near the IC above caps C54 and...

Thanks for that. I've been scrubbing with vinegar and an old toothbrush then washing that off with isopropanol. Is that a good technique for cleaning off the capacitor liquid?

I tested the PSU. On one of the Molex 4 pin connectors I get: 10.94v blue/brown 5.24v blue/red Shouldn't they be closer to 12v and 6v? This was not under any load.

Thanks for that. I dug out the board and moved it back to my workshop. I've gently done as you suggest with all chips near a cap. All look to be solid. Not sure where to go next with it. To recap (I am new to this!) this was a working Quadra 610 that I bought on ebay. On arrival it booted fine...

Well after inspecting, washing, scrubbing, "reflowing" some of the legs and redoing some of the caps I've replaced, I've decided to give it a pause for a few weeks. Since the Quadra was working fine when I bought it, then those annoying Chimes of Death came along, I can sense myself getting...

So little by little I replaced all ten caps. After a thorough washing with isopropanol and checking, again and again, that everything was the correct way around I put the logic board back into the case. On boot I still get the chimes of death. I consider this as a success as whereas I have not...

Great story and a great find. Thanks. I removed (gently by twisting with needle noses pliers) the caps yesterday, then gave the board a clean. I washed with distilled water and detergent, scrubbed lightly, then rinsed twice with isopropanol. I found it quite hard putting the water on the board...

Please do not apologise for offering advice! I'm fairly new to this and welcome as much as possible. Thanks for the video. Will watch.

I had a go at removing a cap with needle nose pliers and slightly twisting back and forth. It came off really easily, although I think I need some smaller pliers! Thanks all for pushing me.

Thanks. I've got some new caps on order. I'll have a go next week. Wish me luck!

I removed the board to get a closer look. There's a pair of chips (RP2 and RP3) and one of them looks to have some corrosion. By their proximity to the on board RAM I would make a naive guess they are involved with memory. Which would make sense with the chime? Is that plausible?

Well it looks like the board was not in as good shape as I thought. I went to fit a BlueSCSI device yesterday. Upon boot I get no video and then the eight tone Chime of death! I removed the BlueSCSI device and I still get the same. I guess that, even though I was careful, I must have disturbed...

Thank you for that. Great ideas. I wiped some cotton wool around each cap and I only picked up dust. See the photos attached. I must have a few boards around I can practise on.

Thanks. I knew I have to recap, but I guess you are saying I should do it now rather than wait a few weeks/months.

Hi all, after getting rid of my old macs a few years back I appear to have caught the bug again. Got myself a G4 Mac Mini running Mac OS 9, then a server with Netatalk, then tashrouter and a few minivMac images. I will join #Globaltalk2025! Now I just bought my first M68k Mac (well the first for...