It would help if you read what I wrote. It would also be wise to understand that 4 people hardly constitutes a sample size worth anything.
Also I am not asking for assitance its fixed. Gone from hard lock-ups every 10-15minutes of BF3 (BF3 only mind you), play to no lock ups in over 10 hours play.
There is no issue with the game, I am referring to the cards, however the BF series is known for its tendency to be picky about any form of overclock or change. I am not OCing at all. I am referring to the fact that default core voltage settings at ~0.9V is insufficient when running the top end Fermis flat out.
http://forums.electronicarts.co.uk/battlefield-3/1431222-hang-ctd-
bf3.html
http://www.overclock.net/pc-games/1152648-560-ti-bf3-crash.html
http://www.enterbf3.com/topic/5221-bf3-mp-makes-my-pc-freezelock-up/
http://forums.nvidia.com/index.php?showtopic=214933
http://forums.nvidia.com/index.php?showtopic=214694
http://forums.nvidia.com/index.php?showtopic=214000
http://forums.nvidia.com/index.php?showtopic=213833
The actual point is that no matter what you do, what you reinstall, what setting you make on your computer, nothing will fix this - until you overvolt your cards to 1.1V (1100mV) on the core. I was crashing at stock speeds every 15 minutes. Replaced RAM, updated drivers, reinstalled windows, cleared the mobo CMOS, temps at 45oC on GPU at load, 50oC on CPU at load, more than sufficient power. Nothing at all wrong with my setup.
Take home message, if you are running a sufficient PSU and all other things are set correctly, up the core voltage. I haven't had a crash since doing so and I have played about 10 hours. The stability increase has been instant and 100%.