G3 ZIF Upgrade with overclocked Systembus?

[avw]

This question might be very specific, but perhaps somebody has tried this before? I own a PM G3/233 DT that I overclocked very sucessfully to 83 MHz systembus speed and 292MHz CPU speed. This machine is a lot faster when overclocked, and totally stable (I would have been the absolute hero in 1999 with this computer ). Especially the systembus seems to make a real difference. Now I got my hand on a Sonnet G3 1 GHz upgradecard. Inside the BW G3s this card is clocking down the systembus from 100MHz to 66.

Now my question is if I can try to use this upgrade with the overclocked systembus inside my G3 DT? Or may I harm the machine? Or should it simply clock down the systembus again? Or may it perhaps work with the 83MHz?

 

[trag]

You might wish to check some of the old articles at xlr8yourmac.com on clock chipping the Beige G3, but if I remember correctly, the bus speed on the Beige G3 is controlled by a jumper in a bank of jumpers and the settings on the ZIF have nothing to do with it.   So, if you install the card in a Beige G3, you should get whatever bus speed you have set using the jumpers. 

The 1 GHz PPC750 (G3) supports a bus multiplier up to 20:1, so be careful what settings you choose.   With an 83MHz bus speed, you could, in theory, end up with a 1600+ MHz G3 speed.  Probably wouldn't damage anything, but won't do it any good either.  

I think that ZIF defaults to 10:1 when first booting though, so you should be okay.

 

[Macdrone]

The G3 B&W has the same jumper, but different settings.

I agree with the xlr8 Mac site. Most of this info is there.