Hello. I just decided to purchase a second EVGA GTX 460 in order to run SLI on my machine. I was able to set up the SLI, however I notice an extreme drop in my FPS when running in SLI mode as opposed to running a single card.
Specifically I am running Battlefield 3. With one card, I can play on Ultra Settings and have around 30-35 FPS. With two cards running, the FPS in Ultra drops to a dismal 8 FPS or worse, basically making the game unplayable. At times, the game will freeze and crash.
Does anyone have any idea what could be causing this and/or how I might go about fixing this?
My computer specs are as follows:
ASUS P7P55 LX Motherboard
Intel i5-760 2.8GHz Quad Core
RAIDMAX HYBRID 2 RX-630SS 630W PSU
2x EVGA GTX 460 1gb
2x2GB DDR3 SDRAM
Windows 7 64bit
Nvidia drivers : v295.73
I realize that my motherboard was not crafted to support SLI, but I use HyperSLI, which supposedly makes the SLI possible. I'm not sure if it performs the way it should, but It does give me the option to run SLI in the Nvidia Control Panel, which is not present without HyperSLI.
I thank any and all of you in advance for your help!
I had an MSI P55GD65 for about a month before it broke. When I brought it in, the tech said they had a lot of issues with those boards. Ended up with an Asus P7P55D Pro and this is a significantly better mobo.
Anyway looking at Newegg I'd suggest one of the EVGA boards. They're expensive but have all the features. But really as long as it's got two PCIe 16 lanes at 8x/8x you should be fine.