So basically I have ATI 800XT card in my G5 which besides the wireless card is the only one sitting in the PCI bay. Yet PowerMac's PCI area fan is spinning quite fast just because instead of temperature reading its speed is based on PCI current draw. That makes sence of fanless cards like 9600 but not much for active cooling systems that cards like 800XT have. So has anyone disconnected that fan to quiet down their systems a bit? I'm thinking about monitoring my temperatures and then disconnecting it and see how it works.