On Dec 29, 2010, at 6:18 AM, Alex Smith (K4RNT) wrote:
Is there anything out there that's cheaper and would give me a similar boost in speed?
I'm not a Yikes expert, but my understanding is that a Yikes is almost identical to a late B&W G3, and when you upgrade the CPU to 1 GHz you're required to underclock the system bus from 100MHz back to 66MHz, so the net gain isn't as great as it might appear. I believe the CPU:bus ratio is limited to 6:1 maximum when running at 100MHz, so this means the max. full speed CPU would be a 600MHz G4. I think when underclocked to 66MHz you can get a 10x ratio, so perhaps a 1.2GHz G4 would be possible if they made one, but I don't think they ever made such I thing? The Yikes isn't the best Mac for upgrading, but all PPC PowerMacs are looking pretty slow and expensive in relation to cheap PC hackintoshes running Snow Leopard.
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