> I wanted to upgrade my children's (my old) G4 MDD 1.25 Dualie, 2 GB RAM, 
> OS10.5.4 to the 1.42 Ghz Dual processors and heat sink.
>
> The buss speed is 167 so I should have had no problems.
>
> However, when I swapped the processors, heat sinks (big brass one),
> pressed the cuda button and then powered up and I get the "boing" but
> the monitor displays nothing. I tried again and still the same, I have tried 
> using CMD + OPT + P + R and I do get the gray Apple but NO spinning wheel. I 
> again put everything back as it was and it started just fine and continues to 
> run.

Have you tried pulling out all the pci cards and starting up while
holding the shift key for a safe boot?

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