Nvidia Surround performance bad on bf3/4

[Lord_Karango17]

hey guys, recently i got a 120hz benq  xl2420t monitor, and since i had 2 old monitors lying around  (some 5 year old lg ips monitors) i decided to re-kaggiger my table to accommodate 3 monitors (was no easy feat), and tried to fire up some games. oh yeah, the pc its all running on has a i7 3770 running at around 4.2 jiggaherts (bus clock increase) and 2 gtx 760's. it worked fine in games like crysis where i could get solid fps in med-high settings without any aa in 5760 by 1080 res.

 

the problems started when i tried to fire up bf3 thinking that it was going to be awesome and all, but even on med settings the fps is like 30. i have msi afterburner's onscreen display running and the mem usage is around the 1.7gb range, so vram is not the prob... usage hovers around 60% which is worse than one monitors which baffles me a bit...

 

some pics to illustrate how ghetto the whole setup is...

[yourdad165]

I understand that you listed your processor and graphics cards, but list the rest of your parts so I can see what could be wrong.

 

It might be that your motherboard isn't capable of running two GTX 760s so it's only working with one that is trying to run Battlefield 3 on three different monitors.

[Lord_Karango17]

the motherboard is the z77 asus sabertooth, and there is 8gb of ram and its all running off a cx 750m, i have also had this rig since late summer of 2013, and its been fine then, the problems started when i decided to pull out the old monitors and try surround yesterday...

 

if im not mistaken 8x pcie bandwidth (is what the mobo runs when there are 2 gpu's installed) should be enough for each card...