I don't know for sure, but I cannot see why not. By the way, I am finding that the fan at the power supply in the QS is cheap and not at all robust. Be prepared to replace yours. I also had to replace the small fan that was integral to the OWC Mercury Extreme heat exchanger. When I opened the case, I saw that it was working only intermittently, and the related symptom was that I was once again getting weird fonts on my screen. All is well now, but I have a refurb 20" iMac Intel Core-Duo in the delivery channels from the Apple Store, even as I type this. Because one thing after another seems to be going wrong with my QS: Fans, HD, replacement video card [maybe--not sure if that was also a culprit, but replaced it with the original one]. Keeping my QS in good repair is getting to be more of a drag than a hobby. --Steve >Does anyone yet know if our G4 Quicksilver Mac is >going to be able to work with and support the upcoming >OS X 10.5 ÒLeopardÓ Series - Hopeful!