On Thursday, December 4, 2003, at 08:36 PM, JGE wrote:
I saw on LEM a mention of a clocking barrier, really a multiplier barrier that made things top ou at 466? Anyone have any experience with this?
The barrier with a 66 mhz motherboard speed is 533. The maximum the jumpers will go is 8x the motherboard speed (8x66.666=533). There are people who have overclocked the motherboard (far more dangerous than just the processor). I tried on one occasion 533 rated G4 and I tried OCing the MB to 75 mhz with a multiplier of 7 and the experiment failed miserably (no data loss).
I have a Beige AIO at home that has a RevA Mobo and a RevB rom in it.
The machine is currently running (and has been for more than two years) with the Motherboard BUS clock set to 83MHz and an OWC G4/450 clocked to 500MHz using a 6x multiplier. This combo will run fine with the Multiplier set to 6.5x for a speed of 541MHz and boots ( but I get no video ) with a 7x .
Not every Motherboard or Processor can be overclocked.
--
Aloha, Ken
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