Hi AVSIM members.
Nu-be to this site. If posting in the wrong area please advise and I shall do my best to adjust.
I have always wanted to build a flight simulator. Tried and failed. This will be my third attempt.
Have all the parts required for a PC to run FSX, this will include a projection of the screen via
a 5000 lumen unit onto a flexible curved screen. Have started the motion platform and have
motors and control board ready to go 3 DOF motion.
Anyway onto the problem I have, I dare say this topic has been discussed before so if anyone
can suggest links then please do so.
I Have two graphics cards ASUS NVidia GTX 790 linked via motherboard and connection link
ribbon. NVidia drivers up to date and running NVidia inspector with a few tweaks. Card No1 in
the PCI-E slot marked x16 on the MB as the main driver and the second card in the second
PCI-E slot marked x2 on the MB as GPU support for the first card.
Running NVidia inspector shows GPU card No1 at around 80% usage when flying over EGHH
airport frame rate around 45-59 FPS. CPU is an intel I7 3.6 GHz overclocked to 3.9 GHz on air
cooling at a temp of 94d.
The second GPU card No2 via inspector shows it running at 0% usage.
I know from reading forum posts that FSX runs better from faster CPUs and GPU not used so
much.
Question being am I using both graphics cards to display FSX in PhysX mode connected to a Matrox
tripplehead2go via DVI cable to HDMI. or am I only running off one card. Also because one of the
cards is in a PCIE slot marked x2 am I throttling card No1 to the lower slot speed.
Even though the performance is good I wander if it could be improved.
Thank you in advance IanMC