New GPU causing high CPU usage

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Adastraa

Thread Starter
Joined
Nov 23, 2011
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Hello everyone,

I've recently gotten a new video card which I installed on my computer as one of my two video cards. To match up with the new card, I've also purchased a new PSU to ensure that there is enough power going to my system. However, after installing both parts and doing a fresh OS reformat, I found that with both cards connected to the computer, there is an 85%+ CPU usage rate which causes the computer to be really slow even with nothing running. I've tried googlin' around for possible solutions and have not really come up with anything that has helped.

Tried Solutions:
  • Reformat OS (Windows 7 Professional)
  • Reseat each GPU
  • Switching the GPU locations

System Info:
Video Card 1 (New): MSI GeForce GTX 560 Ti Hawk
Video Card 2: EVGA GTX 470
Motherboard: ASUS Sabertooth 55i
PSU: Corsair TX750

Additional Info:
Before this setup, I was running the 470 with a 8800 (I use two even without SLI because I use three monitors) and it was fine. If I only have the 560 installed, it runs fine. If I only have the 470 installed, it runs fine. But with the 560 along with the 470, the computer's CPU usage sky rockets.


Any help and assistance would be appreciated, thanks!
 
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