hello partner,
Greetings from Egypt
i have Dell precision T7500,
Working like charm (Masha2laah)
EVGA Gtx660
only one processor Intel Zeon Hex Core 12 m cache
1st of all u have to check your chameleon.boot.plist
And check if there is any graphics Boot code
it will be a number like 175237165981276987561897605912039 usually it will be in the end of the plist
u have to remove this code
cuz ur hack will be recognising ur vga drive as a certain Drive as the code tells it
2nd u have to be 10.8.3
then install nvidia drives & Cuda Drives
& Update to 10.8.4 ( u may also update nvidia drivers ) make sure u use the higher boot loader in multibeast
is speeds up the boot time
(Sleep issue For sure disable automatic sleep)
and dont update to 10.8.5
for me i get some freezes on 10.8.5
everytime i start the computer up it freezes after less than 30 minutes
i never tried 2nd processor
the computer is running like charm with full acceleration in adobe programs cs6
only u have to do some gpu sniffer stuff in the programs u use after installing the drivers and making sure it works and identified as the gpu u bought
i think there some boot flag always needed to make the gpu works
if u need to know something if i could help u with my plist contact me
i bought some pci cards like / firewire 800 / usb 3 wich was supported by mac & Pc and also working fine.
i never tried gnu mac supported cards i wish it works..
if any body tried the 2nd processor or gpu supported cards please let me know ...
what i posted was my personal experience with this curtain computer ...
i love this community ......