Ok thank you again for your answers.
I'll go with evga or gigabyte 680 4gb so we will see how that goes
heeh... i did mod on 680 4gb, palit jetstream... and it works kinda..
my goal was to find out will it work like real GRID K2 so i can share gpu to multiple vm-s.
without mod with qemu-git on latest debian it works flawless...
with gird k2 ID, i can run it with grid k2 drivers,even with desktop ones, but restart, shutdown, POST screen doesn't work... but when gpu works it works same like 680gtx, in games, streaming hw encode... etc... with both drivers with id GRID K2...
so pretty much card works with GRID K2 id... so next i wanted to try to share it...
on xen-server 6.2 latest - with any GRID K2 host driver... it detects it normally, but when i try to start vm with shared gpu... i got 3 lines in dmesg like...
its init and binding gpu, taking ownership and then nothing... xen-center crashes with error iomem... vgpu exited unexpectedly...
passing it like single card works sometimes...
on native windows 2012 R2 hyper-v installing with any GRID host driver crashes host (kernel i guess, mouse shows here and then with bsod sometimes, on keyboard numlock blinks)... all 3 outputs have some problems like black/white screen blinking and black/green snow (lol)...
last epic try:
qemu with win 2012r2 vm with grid passed... i can make driver and hyper-v to work but i don't have gpu listed in hyper-v options (maybe cause of passtrough, so it doesn't detect it like phy gpu)
question...
so next step would be updating bios? would that help? is it possible to recover bios if it fails?
did anyone managed to get it to work like real grid? is it even possible?
thx