SexyJim

Not sure if it's still relevant to you but I have a similar setup. 2 x eVGA Gtx 780's in SLI under water along with my 3930k CPU. I'm running the modified vBIOS that Svl7 created for these cards that allows for 1.212V, boost disabled along with a crazy high power limit and the max I can push my cards to is 1163Mhz on the core. Extended periods of looping Heaven benchmark see no higher temps than 46 degrees C with ambient around 28 degrees C. Running a Silverstone Strider 1500W PSU along with the extra power connector in my Rampage IV Formula board so I know that power is not an issue. Using the Afterburner soft mod to get voltage up as high as 1.28V see's me running significantly higher frequencies around 1280Mhz but eventually the VRM's get way too hot and the driver stops responding. The mod also stops the normal voltage drop down in 2d mode so it's really not healthy for the cards. I would say that it is due to the quality of the original GK110 chips used in the 780 as compared to the B revision in the 780Ti which seem to be clocking higher and have a better designed OEM VRM circuit.

It's still odd that you are only seeing 1.149V when stock you should be able to hit 1.2V I believe. If you are testing using Kombustor or any other sort of "Power virus" as nvidia or AMD would call them then the driver may be restricting max voltage. Better off trying it in a game with benchmark like Tomb Raider and ensure V-Sync is off.

Sounds like one heck of a setup, I was thinking of benchmarking it through Tomb Raider as well though the screen tearing is really bugging me with V-Sync on, I'm unsure of how to fix that without turning it off.

Yeah, the build quality and hinges are a real downer.

Very interesting, I've been reading up about things like this and does seem like the case.

[h=2]sli 780m[/h]

I've got a Lenovo Y510p and I'm doing engineering as well, it's really good and awesome especially if you have the SLI config.