CPU: AMD Phenom II X6 1055t @ 2.8ghz / ASETEK 510LC 120MM WATERCOOLER MB: ASUS M4A77T/USB3 Memory: 4GB Corsair 1600mhz HD: 1TB SATA II 3.0 GB 7200RPM HD & 30GB KINGSTON 2.5 IN SATA SSD PSU: SIGMA SP-600AB 600 WATT ESP 80+ POWER GPU: XFX HD 6950, 11.3 Drivers CAP 3 Hi, I'm new to these forums, and be warned, I am not very tech savvy although I do know enough to get by. I got a computer made from CyberPower a couple months ago. I thought everything was fine with it until I decided to upgrade the video card from an ATI HD 5750 to an XFX HD 6950. That's when I noticed something was wrong, when playing RIFT: Planes of Telara I would notice my FPS drop out of nowhere almost like my GPU was throttling. This would happen while playing Battlefield: Bad Company 2. My friend told me to monitor it with MSI Afterburner and I noticed that whenever my FPS would tank so would GPU usage. At first I thought it was a GPU issue so I sent the card in to XFX for RMA. They sent me back another one with a different revision. Still this did nothing to fix my FPS issue so now I think this must have something to do with the rest of my system. All my drivers are up to date. I’m not quite sure what the problem is. My GPU isn’t overheating and I don’t believe my CPU is either. I’ve also tried replacing the power supply with a new one but that didn’t fix the issue either. Could it be my MB or CPU? UPDATE: 4/16/11 So I went ahead and got a new motherboard. I decided to stick with ASUS and got the Crosshair IV Formula board. The problem has not come up at all so I have come to believe that my old board, the ASUS M4A77T/USB3, was the source of the problem. Just wanted to log it here so anybody else googling similar problems can see this thread. Thanks for all the help everyone!