20" iMac G4 running Lion via Sandy Bridge ECX board
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I am nearly complete. Everything fits and is up and running. The fan is whisper quiet and a bluetooth dongle on the back works fine. I just have to get the power button in line with the power button on the back of the iMac and finalize placement of the other rear ports.
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Right now the ports are just either coming out the back or lined up with the back, just to ensure they fit without a problem. I've decided to keep it simple with 4 USBs, Power connector, Ethernet, and 3.5mm Audio Jack
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I have it hooked up to the original keyboard and mouse and am using the Powerwave adapter to be able to use the original Apple Pro Speakers. I find the Powerwave to be quite useful so I do not want to destroy mine, but I may search for another and try to internalize it. The board inside can not be too thick and I do have some extra room between the DVD and the bottom of the dome. I would leach the 12V DC power off the power source, though I'm getting a little worried about overtaxing the PSU. Is internalizing this worth it? Besides the power brick, the powerwave is the only thing that this mod has that wasn't in the original iMac.
Display sleep and S1 sleep work fine, but S3 sleep is still a problem. I've cloned the drive to have a version that I can experiment with and will post the DSDT shortly. Another thing I could use assistance with is IDE/AHCI. Before securing the motherboard I decided to utilize the on board CF slot of this board. I put an extra 32GB card there and I loaded Windows 8 Developer Preview on there. The computer boots fine from the CF slot, but it is only recognized when I am in IDE not AHCI. This isn't a big deal as I don't expect to use this much, but it makes dual booting with Chameleon impossible. I'm not sure, but I believe its possible to load IDE drivers once you have Lion installed, is that correct? Is there any downside to doing this? If I do this would I be able to dual boot from IDE mode? This is certainly a feature I could live without, but any help or advice would be appreciated. Thanks for reading.