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Look for Apple Service Diagnostics. There are different versions, some work on G5, some do not. May be more info in this thread. Otherwise try the Macintosh Repository here. I don't recall if the G5 can boot it from USB or not, I think I burned the CD.

Should be no issue at all. There are instances where if you have a single dead or faulty CPU, the computer will only work if the dead CPU is in one specific slot, so if you get no boot at all, swap them to the opposite positions. Run the Apple Hardware Test disk if you have issues.

Well, looking at it from a binary perspective, that gives you 16 options. The board ROMs are 24pin and the sockets look like they could take up to 28pin. Maybe there were other ROM chips available at the time that would fit those sockets as alternates? I would pull the chips and read/backup...

Is your USB drive illuminated (does it have an activity LED)? If not, it is hard to tell if anything is progressing or not. Some thing to note is the requirement of a USB hub. If you look at OCLP on certain macs, a USB hub is required to install/update. It could be possible that the...

Great write-up! Moderators, please sticky this thread.

Go back to post 1 and make sure you followed the instructions.

Just received my 3 spools today. Anyone know where to get a desktop 7600/G3 style "Card Retainer Baffle" 3D model? I will try to model one myself if none exists.

I think most automobile antifreeze is usually mix 1:1. Unless you purchase the specific no-mix version. I don't think the antifreeze is so much to prevent freezing of the coolant, but to raise the boiling temperature. Although, when it is working, it should never get to boiling temps anyway...

You said there are two controllers on board, have you tried both controllers with Cable select as well as Slave/Master?

Welcome! I lived on Sint Maarten for many years before Apple made the switch to Intel.

Old drives laying in a box should be fine, as long as they are not TOO old, meaning do they have jumpers for sector size and heads? I don't think anything PPC was designed to boot off of USB, regardless if it was optical. But I may be wrong.

Just ordered 3 spools!

Yes! I have a couple MacPro3,1 with raid cards and more than 8 drives in them... And I typically run multiboot with multiple OS's that the machine can run.

Check out this thread on what works and what did not.

Test voltages on the PSU (I can't give you guidance on how to)?

Did you clean this board? Did you do the recap? The traces near caps by the 3 big coaxials, I can't tell if that is flux residue or a scratch from the soldering iron. Near Cap C16, you can see most of the endpoints, so I assume you continuity tested most of those traces. Look at UH2 and...

I bought an Amiga 1000 in 1986, upgraded to an A2000 and eventually an A4000 with a Video Toaster. SOOOO much time spent on Deluxe Paint. I also had an Emplant card, that you could put a Mac ROM onto and emulate the MacOS 6/7 inside the Amiga OS. Eventually I got the Toaster Flyer: the...

Testing more options... OSX 10.2 install from cd looks like 2+hours... I will eventually try XPostFacto for 10.4 later. I used a CF to IDE insert directly to the motherboard on the internal hard drive bus. Since it is vertical, I can't close the case... this is just for testing. External...

Old IDE drives. They make IDE to SATA or IDE to CF or IDE to mSATA adapters... lots of choices... There are other threads here referencing which ones work well and which ones don't. Here are two threads: SSD in B&W G3 and Drive Replacement for Lombard 333

Revisit May 2025 I finally got my hands on a desktop Beige G3-233 (overpaid on eBay for local pickup, because pics showed it powered on). Since this mystery G4 ZIF was not booting in either B&W G3 I had, I wanted to test it out in an actual Beige machine. First, I installed a spare G3-350...