Upgrading my CPU Processor (g5)

I am pretty sure I allready know the answer to this, but! It is possible to upgrade your processor from say a 1.6 to a 2.0?? Is it possible to go to single to dual? Do u need to replace your mobo??

thanks!

What kind of machine is it?

I don't know that there are any G5 replacements/upgrades on the market yet.

is this possible as well for the g4 powrbooks? to up the processor speed to 1.5 or 1.67 from 1.33.

For sure on the notebooks, the CPU is soldered to the Motherboard. No upgrade possible.

On the G5 question, I have read that you can not upgrade the CPU's in the G5's at all.

I haven't the nerve to take my Quad apart, but I believed the processors are on a daughter board. However, the restriction, IIRC, has to do with bus speed etc..

baggss said:

I haven't the nerve to take my Quad apart, but I believed the processors are on a daughter board. However, the restriction, IIRC, has to do with bus speed etc..

Click to expand...

That is what I had heard also.

baggss said:

I haven't the nerve to take my Quad apart, but I believed the processors are on a daughter board. However, the restriction, IIRC, has to do with bus speed etc..

Click to expand...

Yes, that's exactly the problem.
The clock speed of a CPU simply is the bus speed multiplied several times.
On a G4 or Intel, you have a fix bus, with the multiplier of the CPU varying (and, of course, the CPU being one that is capable to work at a higher speed).
G4 with 1GHz = 6x 167MHz (bus speed of the last G4 models)
G4 with 1.25GHz = 7.5x 167MHz

On the G5, it's different, as the multiplier is fix, and the variable part being the bus speed.
2GHz CPU speed = 2x 1GHz (bus speed)
2.5GHz CPU speed = 2x 1.25GHz (bus speed)

And because of that, putting a 2.5GHz CPU in a 2GHz model wouldn't make a difference, as the CPU would simply run at 2GHz.

For that simple reason overclocking without frying the CPU is nearly impossible (without some very expensive cooling methods) and there probably never won't be a CPU ubgrade for G5 models.