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The RAM might not be making good contact. You can probably limp it along with tape or the 3D-printed braces, but the slots themselves may need to be replaced eventually.

Hi! - 🌎

The 800MHz cards aren't much sought after because they don't have any L3 cache, but I might have a use for it. Would you take $30 shipped?

Congratulations! Sounds like you have two very cool and fast G4 machines now.

Unfortunately, a Quicksilver CPU card will not physically fit in a Sawtooth without modification to the logic board. It will hit the second IDE connector. The connector would need to be removed; either cut off or desoldered, for the later CPU card to fit.

Went searching for a reference to check my memory and found this nice resource: https://wiki.mamedev.org/index.php/Driver:Mac_68K:Tech_Info#PowerPC_G4_Desktops The MDD is notably absent from the list, though 🫤 It looks like Apple eventually integrated UniNorth and KeyLargo in Pangea for iMacs.

For what it's worth, I thought USB was in the southbridge, KeyLargo.

That's awesome! Great fix.

Sorry I haven't read the other thread, but don't you need to modify the ATI driver in OS 9 with ResEdit to add the device id for the Radeon 9100, similar to what's commonly done for the 9250?

This describes every compact Mac I've seen in the last 25 years, but I am not old enough to have had one when they were new.

It's probably not worth spending a bunch of time on 8.6 since anything that realistically make use of this browser should have no trouble running OS 9, but I'm sure some people would enjoy it :)

CarbonLib 1.6 works back to OS 8.6 AFAIK.

I was able to dig up a datasheet for MT58LC32K36D7 and it is in fact 5V-tolerant. That lends credence to the theory that 5V I/O compatibility is required.

Thanks @trag! I was hoping you would see this eventually. Since I posted last November, you are not even 6 months late ;) I've looked at swapping faster SRAM chips onto Apple cache DIMMs and seeing whether the TAG chips can keep up at 60MHz, but do you know whether the chips must be 5V tolerant...

You're going to want this too: https://www.bigmessowires.com/mac-se30-with-upgraded-rom/

Nice work! I wonder whether the reason that nobody else has posted about these caps is that the vast majority of 5xx owners are afraid to disassemble their fragile, brittle machine far enough to reach this board 🫤

Nice, glad you got it working. You can edit PC Radeon BIOSes in Windows with RaBiT: https://www.techpowerup.com/download/rabit-bios-editor/. Might be able to cobble something together with the correct timings to run the clocks at full speed that way.

Yikes, that's crusty! I agree that those are likely 4.7uF.

Right to jail. Just don't breathe the dust.

Preheat the board so your hot air station doesn't have to work so hard. This will also reduce how much you warp the board from uneven heating. You can also buy nozzles for specific chip packages that direct the heat evenly toward the pins so you don't have to keep swirling the gun around. They...