[kemosabex]

I had a quicksilver dual 1ghz whose processor died on me recently. I wanted to confirm that it was a processor problem, and not a logic board issue, and took a g4 450mhz processor and swapped it. I believe it was one of the first revision sawtooth models.
Surprisingly, it worked! But there are a few differences. In system profiler, it shows the processor as a 600mhz, instead of 450.

My question is, why does it report 600mhz? And how will having a downgraded processor affect the computer in the long run?
I only plan on using it as a light server, meaning it is going to be on most of the day. The sawtooth processor stays surprisingly cool compared to the original quicksilver.
Will keeping it in the quicksilver cause more damage to the computer when left on extended periods of time? Or should I just opt for a sonnet proc upgrade?

[Lateralus]

Because the system you took the 450 out of ran on a 100MHz bus. So the card is set to 4.5x 100MHz for 450MHz. But your system has a 133MHz bus so 4.5x 133MHz = 600MHz.

As for long term performance, I'm amazed that you're even able to turn your computer on running a 450 at 600, let alone have the thing be useable.

[Sherman Homan]

I had to swap the processors on a number of Quicksilver Macs and they all seemed to work just fine. However, as Lateralus points out, you have over-clocked your processor and it may decide to just overheat and die.
The usual questions apply: how much money do you want to spend on that Mac?!

[hookem2oo7]

i have a single 533MHz from a digital audio sitting in my closet

[rpster]

killed my dual 533s in an overclocking stunt gone wrong and bought a 450@100bus to replace it. Swapped out the stock heatsink with a copper one. Runs amazing at 600mhz. Got it to batch encode for about 36 hours till I wanted to play wtih it :-)

[kemosabex]

Thats the strange part. I ran the g4 for about a day, and the heatsink was just warm to the touch, nothing out of the ordinary. So, if it doesn't overheat, I'm guessing it is okay to keep it in there.
When I upgrade my main mac, the one I use for editing, which is currently a G5 Quad, then my G4 MDD will become the server.
Thanks Lateralus, for explaining the bus speeds.


hookem2oo7, would you possible sell that processor to me?

[peeb]

That's the thing with overclocking - sometimes you get lucky!

[papadopolis]

and some times you get screwed

[Tuoder]

and sometimes you get screwed hard