AIO running at 280MHz

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coius's picture
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After messing with some jumpers on my G3 AIO, I have bumped the 233MHz CPU up to 280 with Nary a hiccup. The bus is running at 70MHz and the PCI is running 35MHz. This is going to be great once I get the 300MHz Zif over the internet. If anyone wants to know, this is a Rev 2 Board, and can handle 2 IDE Chains with 2 Drives on each IDE Bus I will post Pics (Screen shots) of the machine once in OS X (Got reinstall)

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coius's picture
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And she is still humming along beautifully.

I have added 2 fans. One PCI Slot Fan, and one directly on the CPU Heatsink. It has not had one freeze yet. This makes the 6th hour it has been running notstop ( I did the fan adding while it was still running to keep the tests accurate)

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coius's picture
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280 MHz Snapshot

And there you have it folks. Probably one of the rarest species of 280Mhz G3's. Krikey! and it's a fast one! You should see how well it outruns Panther! It just blazes a trail for all of those AIO Elusive Beasts!

Tongue

EDIT: I still haven't gotten the hang of BBCode

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coius's picture
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If anyone wants..

I can post the jumper settings. This will allow anyone to do this with no hassle.

It's basically shorting the pins

XX
XX -2 Short
XX
XX -4 Short
XX -5 Short
XX -6 Short
XX
XX -8 short
XX -9 Short

You can just pull the red block off *Carefully* With a small pair of needle-nose pliers. Once it is off, regular HDD/CD-Rom Jumpers will work. I used them, and if you are carefull about putting them on, they won't wreck the pins. But keep in mind, just don't go jamming them on. But it will be a little bit of a tight fit.

And overall, take it slow if you overclock it. Remember to not just ramp up the speed, and have plenty of patience. It will take a while to experiment, as it took me 1 hr to find the correct jumper settings (this is the highest I could do, before the internal CRT would not turn on. Even though the external Port worked)

It was worth it, as OS X. 3 is very responsive, and doesn't lag very much. Which is saying a lot, considering that my VRAM in this is still at 2MB. All-in-all, it was worth it. I still can't wait till the 300MHz CPU comes, and then I will clock that one up.

Anyone have any idea what they can be clocked to tops?

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coius's picture
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Note:

I have only done this with the 233MHz G3. When I get the 300, I will post the results of overclocking that one

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