Hello there, my question: Did anybody so far try to run two 8800GT in his new mac pro? I have one flashed 8800GT running in Mac OS and one unflashed (64K ROM) card that I want to put in slot 2. I tried this before with the stock 2600XT in slot 1 and (as others reported) the fan running at full speed was too annoying. Now I want to repeat the same with two 8800GTs. Some earlier reports claim that a PC 2600XT runs fine together with the original Mac 2600XT. It was assumed that the Mac Pro might read the EFI / Bios only from the first card and use it for both?! I am interested to see if that might be true for two 8800GTs. I got my power cable for the second 8800GT today so I might have a chance to try this tonight. Thanks for suggestions and help.