Can I upgrade my processor from 1.8 to 2 GHz?

No.

according to everymac.com and other sources I've seen, the G5 iMacs have CPUs soldered to the logic board.

can Upgrade an 1.8 cpu to 2 or up mg

The processors in the G5 dual xx is mounted in quick-connectors, but You have to loosen all of the screws that keep the in place, even those place under the "G5" plate. It should be around 10-12 screws with either t10 torx screws, or small phillips screws. It can have one of those two configs, but when first removed, taking out the CPU is a straight forward task.

@mayer: A G5 dual comes in several configurations, so the "xx" simply mean that you replace them with the processor-size ex: G5 dual 1.8, G5 dual 2.0, ... etc.

@mayer: No, that had slipped my eyes. I'll shut my mouth ;-)

By using the scale I normally do! I have upgraded about 6 pc's and 4 mac's using the same scale by using the scale I use! You should be able to upgrade to about 2.25ghz from 1.8 2.2ghz for sure! All I can say is prices on ebay have never been cheaper!

Good Luck!

Lol No I have always just multiplied the origional speed by 1.25 LOL and weather it has been a Mac. or pc So far for me it has worked even when I have goon from a single core to a duel core. it has worked. Yes I know he said iMac not power mac. Just like a lot of the older systems came with socketed chips then Apple went soldered in!!! A friend of mine is right now waiting on a chip from ebay to upgrade his mini When we upgraded his Hard drive and Ram I told him about it. So he wants to try a fraction faster going from 2.0ghz to 2.4. So hope his works!. His has a t7200 2ghz has a bid on ebay for a t7600 2.33ghz which is same socket max speed for that socket under the merom chips.

A guide I have used for chips etc can be linked here. http://forum.notebookreview.com/hardware...