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Ok, so, I'd like to bring this subject back up again. So far now, my Macintosh Plus, SE, Macintosh II, and now my Macintosh IIx are affected. What's happening is that one day these macs just start refusing to boot from an external SCSI HD or CD-ROM. Re-capping the logicboard does not help with...

Hello again. My 3rd problem of the week so far lol. Now my Powerbook 180c will not boot from any external SCSI device. Whenever I hook a SCSI cable up to it(I have 3 of them), it wants to boot instantly into SCSI disk mode. Is there a way around this so I can reload the OS?  I don't remember...

The board was already re-capped due to not having sound(sound works now). Thanks for the tip on the pin for the RTC. I'll have to see about that.

I have been having odd scsi behavior on all of my older compact macs from the late 80's. My Macintosh Plus's refuse to boot from any external SCSI hard drives, even one that I had loaded specially for my Mac Plus and was working many years ago before it was put in storage. I can put the HD on my...

Didn't find any bad traces from UK4 or Y1. I need find a missing trace from C12 - side, but I don't know what it goes to.

Yes I have reset the PRAM as well. The clock still does not tick forward. I'm guessing bad RTC chip? Network time is nice and all, but were talking about a standalone SE/30. No internet access. Thanks.

I've seen a few hits on google with different machines where the RTC doesnt work anymore, but nothing about the SE/30. My SE/30 boots up and runs, but the time will not advance on the clock. I've replaced the PRAM battery, what could it be? Thanks

Lol, sorry guys, my other phones mic was trashed. This phones mic works better, but it's video quality is very poor. This is the chirping sound.  Also, yes I have re-capped the logicboard and analog board, but also have tried another  logicboard and it does the exact same thing. One of the only...

I'll try and record the noise again tomorrow. Yes it was working many years ago before I put it in storage.

Hey there. I've got a Color Classic that no longer wants to turn on. When the switch is flicked, you can here it it energize or whatever you want to call it, then when you press the on button on the keyboard, it tries to turn on, then makes a chirping noise and shuts off. I've re-capped most of...

Ran into an issue where my power adapter for my Powerbook 540c was outputting 16v on one pin, but only 2.xv on the other pin so my 540c would no longer start up. Took the PA apart(it's epoxied together) and discovered 6 capacitors. 2x 330uf - 25v, 2x 100uf 200v, and 2x 100uf 25v. The part...

I need the PS out of a 63X

I'm looking for a copy of Strata 3D Pro 3.8 if anyone has a copy they're looking to share or sell. Haven't been able to find a copy in some time.

Got a Color Classic logic board here that has a bad thru hole connection. Looks like someone did a nasty job at trying to clock chip it (can't be done this easily on a CC) and reamed one of the holes out. Does anyone know where the 4 pins at G1 go to? Thanks!

I did. Instead of messing around with trying to find where the connections went, I scrapped off the enamel covering the traces going to the pads and soldered the new SMD caps to the traces with a wire. The board works now, but this sadly did not fix my SCSI issue.

No. But after the re-cap, my Powermac 6100 is functioning normally again. I will re-cap my 9600 next. The 475 is still not acting right. Won't launch Drive Setup either. Says it's not supported on this Macintosh O.o

A little update. Finished re-capping the 475 logic board and the same anomaly still occurs, no internal HD will work without an external termination. I also finished re-capping my 6100 PM and all of the HD's booted without issue in that machine. There's also something more funky going on as the...

Lol. No, but interesting reply. And some machines have internal scsi issues while others have external. I just tried re-capping my 475 and screwed up two pads. Trying to fix these now and see if I get proper operation afterwards. On the 475 I'm thinking it's something with termination on the...

Need some help on this one. I messed up two pads replacing caps on my performa 475. C129 (-) side, and C150 (-) side. On your post you say that C150 neg. goes to U30 pin 21, but I don't get a beep when I probe that pin. In fact I get a beep when I probe pins 22/23 and 29/30 and GND. Am I...

Been awhile but I've been having strange anomalies on almost all of my older macs. From my Plus's to my 9600. For instance, my Macintosh Plus's will no longer boot from an external HD. It doesn't matter what HD, or what enclosure I use, they just sit there at a grey screen. My 9600 will no...