Ok so I've had some problems with my SLI setup (two EVGA GTX 570's). When playing Battlefield 3 my game seems very choppy sometimes for having two 570's running it. When I ran a single GTX 570, it ran smooth. I've been searching around the internet and tried many suggestions with no luck. So I finally decided to just call EVGA and ask them what the problem is. The guy that helped me asked about my PSU (which is an OCZ-ZX850W). He said the wattage is fine, but the +12V rail doesn't provide enough Amps for both cards. Each card requires 38 Amps under load, bringing it to a total of 76 total Amps needed. My PSU does a maximum of 70 Amps on the +12V rail.
I guess my question is, will I really see a difference if I get a PSU that has more than 76 Amps on the +12V rail. He also told me it doesn't matter if its a single rail or multiple rails, as long as the overall amps are more than 76.
I've been told this is micro-stuttering, is there a fix? Or did I waste $350 on another GPU? Also, people in other forums asked other questions like my resolution and my other parts. I have a single monitor with 1920x1080 as the resolution. Below are the other parts in my build.
i7-2700K (not overclocked)
Asus P8P67 Pro (rev 3.1)
8Gb Corsair Vengeance
OCZ-ZX850W PSU
OCZ 120Gb Agility 3 SSD
Western Digital 320Gb HDD
x2 EVGA GTX 570 (model: 012-P3-1573-AR)
I guess my question is, will I really see a difference if I get a PSU that has more than 76 Amps on the +12V rail. He also told me it doesn't matter if its a single rail or multiple rails, as long as the overall amps are more than 76.
I've been told this is micro-stuttering, is there a fix? Or did I waste $350 on another GPU? Also, people in other forums asked other questions like my resolution and my other parts. I have a single monitor with 1920x1080 as the resolution. Below are the other parts in my build.
i7-2700K (not overclocked)
Asus P8P67 Pro (rev 3.1)
8Gb Corsair Vengeance
OCZ-ZX850W PSU
OCZ 120Gb Agility 3 SSD
Western Digital 320Gb HDD
x2 EVGA GTX 570 (model: 012-P3-1573-AR)