As per the this thread, I have come up with a way to quieten down the 8800 (g92) when its installed in the 2nd pcie slot.
The VRM end of the board still needs more airflow, so i may ad more holes etc. But I'm also looking into mating the bottom of the std cooler with the AC fan/duct. Also I believe the 12v output from the fan header isnt completely clean, as the AC fan is being pulsed a little which is odd because its only connected to the GND and 12V pins, the 'sense' and 'control' are un-connected as per this info. The idle/load temps are higher than stock, but this is offset by the card being completely silent.
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