Just received my Titan :
PSU : corsair AX 1500i
cannot run it above 250 Mhz (def : 300) because the PSU shutdown in protection mode.
at 250 Mhz, this shit draw 1100 watts
the hashrate vary between 150 & 250 mh/s
some times it stop mining, I just need to reboot it. Like that :

ps : if some one know where to buy pci-e Y cable for the titan, please tell me, I don't want to wait month before knc deliver them.
ps2 : the miner is pointed here :
http://clevermining.com/users/13BeJG5DuNgsY2aMDCqEwtbDrYfRQryjip