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Update time! today I attempted it finally! to cut it long story short I the 7410 Upgraded 750 266Mhz G3 ZIF chimes in the G3 BW but i get no video. I have a couple theories on this big one being I Goofed up somewhere :p but the fact i get a chime is good the other theories is the 266Mhz ZIFs...

well today I gave the first stage a go, removing the old G3 from the board I completely messed up the first ZIF (board pop corned well i think it did. it made a couple muffled cracking noises) but i managed to remove the CPU off the second ZIF card without it pop corning or lifting any pads :)...

very cool! yeah iv seen the wobble thing done a few times I also been doing lots of practicing on dead boards to get a feel for things :) I also did an EEPROM swap on a GPU I had you can read about it...

So my 7410 chips arrived woo :) now that I have everything i hope to try and do the G4 CPU upgrade like you have done (as i said in a past post ill be trying first with a 300Mhz G3 ZIF) is there any last things I should know before i try? (im not using a bottom heater i plan to preheat the...

I have a 858D hot air gun/rework station. I dont have a bottom heater like you tho...  (I also have a 936D digital Hakko clone soldering iron) I have a few Scarp boards (inc a dead MBP3,1 Logicboard) that ill practice removing parts off of as well :) thanks for the help btw I do appreciate it...

alright cool. :) hope you dont mind the questions but what temp and airflow settings did you use to Remove the 750 G3 from the board? I have not done this sort of thing before so trying to get as much info as I can on it :)

ah very cool :) thanks for the reply this is the Flux I ordered http://www.ebay.co.uk/itm/MG-Chemicals-Liquid-Rosin-Flux-835-P-Pensize-/322315289765?hash=item4b0b7d04a5:g:MkAAAOSwrklVOrHt(I knew you needed flux but i wanted some input on someone who has done it before :) ) but yeah thanks...

Just want to mentioned that I ordered a bunch of soldering tools and a lot of 5 7410s on ebay so I will be attempting this my self (well not a tray loading iMac ill start with a 300Mhz G3 ZIF from my G3 BW beater) got the soldering tools from sellers in the UK but the 7410s are on a slow boat...

one more thing I should mention is that I have found that when you Put G4 CPUs into G3 Gossamer systems (Say a G4 ZIF from a Yikes into a G3 Beige) sometimes the L2 cache will not show up unless you install an enabler so when doing this iMac tray loader modding if you do not see L2 cache try...

Just signed up to say what an awesome project this is turning out to be (some of you might recognise me from Mac rumors I hang around the PowerPC section). like Dan above. I have been looking into doing something like this and its awesome to see that it works. I know of one other person who did...