Using two GPU's

[Hunden]

Hi everyone, I am fairly new to computer gaming of any sort. I am currently using 2 ATI 5770 cards but not in crossfire with 3 monitors. I have my center monitor on one card and my 2 outer monitors on the other card. I am not using eyefinity due to the lack of a displayport adapter that i still need to purchase. IL2 operates using 3 monitors but it just seems like I'm not getting full use out of both of my cards. Being new to computers, I don't know if I'm missing something. It just seems like my cards are operating in series rather then parallel.The only reason I say this, is I will open ati overdrive for both cards on a forth monitor to see activity. One card will max out at 100% before the 2nd card starts to show activity.Also do I need to change something in the config ini to account for 2 gpu's. Any help would be welcome.

[Porksmuggler]

CrossFire woes...

http://www.sas1946.com/main/index.php/topic,2497.240.html

[Hunden]

CrossFire woes...

http://www.sas1946.com/main/index.php/topic,2497.240.html

thanx but your link came up as a high security alert

[Porksmuggler]

not sure what you mean by high security alert?

sas1946.com is one of the probably top 3 sites for IL-2 along with mission4today.com, and allaircraftsimulations.com/forum

[Hunden]

not sure what you mean by high security alert?

sas1946.com is one of the probably top 3 sites for IL-2 along with mission4today.com, and allaircraftsimulations.com/forum

My security flaged it as high risk, also want to mention that i am not using crossfire.

[Porksmuggler]

My security flaged it as high risk, also want to mention that i am not using crossfire.

You pretty much have all the facts. Without the active display port adapter, that's no CrossFire (using both GPUs together) for the 3 monitors.

The other part (in the link) is that IL-2 does not use CrossFire.

So even if you get the adapter to hook all 3 monitors into an eyefinity setup with CrossFire, IL-2 will not be using both GPUs.

I can get CrossFire "active" in IL-2, but it doesn't improve performance. Hope all this makes sense to you :)

[Avimimus]

Tests done at Simhq several years ago showed that SLI didn't work with flight sims.

However, SoW might be different (I'd still focus on CPU, RAM and hard-drive speeds)

[Hunden]

Thanks for both the replies. at least I know I'm not alone :confused:

[Porksmuggler]

we have CrossFire and SLI for all the other games, the ones that are neglected because we're always playing IL-2 :)