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Since you say if you leave a youtube playing it will not crash, I am guessing it has something to do with one of the sleep states of the CPU. I don't know the underlying issue or change that happened in Sequoia. My daily driver is an iMac12,2 and I have no issues except sleep. This is...

Day 17 I started with a 7300/200 and tried to install OSX 10.0 with XPostFacto, but got stuck on not having an HFS+ formatted volume. I couldn't find the Disk Utilities in the menu on 10.0, so will try another machine with a G3 in it. I then pulled out my 7100/66 and ran some standard...

Look for Apple Service Diagnostic CD... I think you want 2.5.8 or earlier... 2.6.3 is not for PPC. January 2003 – Apple Service Diagnostic Dual Boot CD v 2.1.5 – (ASD-215) PowerBook G4 (12-inch), PowerBook G4 (17-inch), iMac (17-inch 1GHz), Power Mac G4 (FW 800), Xserve (slot...

First photo, top right is part Y1, looks like the old mac classic oscillator. Photo 3 looks like two obvious oscillators. I donr’t have schematics, but maybe someone can point those out.

What is your impression of MorphOS? Not exactly linux but more Amiga like. And not free.

Day 15: Missed a few days Work has been long this week, so I haven't had the desire to get into anything when I get home in the evening. I pulled a few things out to look at this weekend. I remember back in the day when 10.0 beta came out... I had some PowerMac clone with a 604e and only 8MB...

Here is the cap kit from Console 5 for LC II / 400. $7 is pretty cheap.

Based on these photos, I am going to suggest a thorough cleaning. Completely remove the motherboard and soak it in IPA and gently scrub with a toothbrush. No solder point on the board should be orange or brown, as lead does not rust. It is corrosion from something, most likely capacitor...

Did you verify the voltages and Amps are close on the replacement compared to the original one? Hope that is not a 5V fan running on 12V.

It is hard to tell with your pic, it is a little out of focus. Take a couple more close up shots of the capacitor farm on the bottom left and the upper left where it looks cloudy.

Yes, as it turns out I was confused. The single pump LCS I was working on is actually from the dual 2.5GHz that I converted to air last year. I thought it was the quad G5, because of the large metal plate on the bottom. But it does not line up with the G5 Quad... so looking at the dual pump...

VLC or HandBrake should be able to transcode to something DVD Studio 4 could handle?

That is going to depend on how much VRAM you have in there. Lower resolution will give you more colors. It looks like 1024x768 is the max on that display according to EveryMac.

Day 11: G5 LCS woes I woke up in the middle of the night and went down a rabbit hole. I looked into cleaning solvents for radiators which lead me thinking about how to run it through. Well, pump of course. Which lead me to test the pump. Nothing. Which lead me down deeper. Disassembly of...

Looks like dust to me. Usually bad caps leave a residue on the green board, not the sides of the cans too much. Try some IsoPropyl Alcohol (IPA 91% or better) and a light toothbrush.

Day 10 part 2 - more G5 I decided to tackle the LCS from the Quad G5. Warning: I am not a user (I am a Tinkerer). I removed the hose clamps. Since there was crust showing at some of the rubber to aluminum joints and I could not get the rubber to come off, I cut it off. Yuck! After...

That is just case rust, no damage on the motherboard? Almost looks like a battery bomb. I love the Jenga pile from floor to ceiling. Good thing that case didn't rust more... You may want to put that side panel back on for vertical support of that stack!

Day 10 so far... I dug around and found some spare parts for G5 towers (screws, drive sled, fans from the drive bay, etc). I Reinstalled the dual 2.3GHz processors in the Unit E (that was previously working fine, then crashed). MLB and CPUs passed. So trying to run the Thermal Calibration...

The back can't always be trusted, as when Tinkerers do upgrades, they don't update the labels. I bought a G4 Cube and it unknowingly already has a 1.2GHz upgrade in it. And you can overclock these G4s with some soldering skills.

The pins in your photos do not move. The 4 screws hold the motherboard is a position that engages the pins. So in the 3rd picture, the motherboard should slide away from the back IO plate towards the Airport card, just about 1/8 of an inch. Then the motherboard will lift up off the frame. I...