I meant to post this ages ago when I upgraded the dual 2.3Ghz Power Mac G5 to this card from the ATI 9650. I have the well documented issue of the PCI case fan begin noticeable audible even when the card isn't under load (something that wasn't an issue with the 9650). The machine is running 10.5.8 with all updates installed. All the info I have found about this issue relates to G5's running 10.3 or early versions of 10.4. The old articles from back in 2004 normally relate to driver issues and the amount power draw going to the PCI and AGP slots making the fan run at a higher RPM and the only easy solution I've found is to unplug that fan, but I don't really want to do that. Is there away to manually control the fan to make it a bit quieter?? Surely 10.5.8 should have updated drivers by this time as there was a CD that came with the boxed version of the card but the card came out in somewhere 2003-2004. Any more modern thoughts on this issue??