My first card, I sent in for my first RMA because it kept making my screen blurry whenever it went past 110F, it came back fixed, but it had problems again where my card wasn't being used, but I could still use my screen, but my FPS rate on CSS went down to below 100, where it's usually above 300. I used FurMark, and it was really lagging and slow, and my GPU temp didn't go up or anything. After I restart, I used FurMark, everything was perfectly fine, smooth picture and no lag at all, with GPU temp raising normally. So, I sent it in for a SECOND RMA, they decided to replace my card.
After 2 days of regular use, no overclocking or extensive gaming, the same problem happened again. I used FurMark, someone tell me what the throttling means and why the core is so low.
Click on the picture to zoom in/enlarge.
The first picture is before restarting my computer and when my card was lagging like crazy.
The second picture is after I restarted my computer and everything was running fine.
Sounds to me there might be another problem and not the card.
What psu do you have?
In Nvidia control panel > manage 3d settings > is power management set to maximum performance?
Case: Thermaltake V3 Black Edition
MOBO: ASUS P8Z68-V PRO/GEN3
CPU: i3 2130 Sandy-Bridge
GPU: ASUS GTX 560 TI DUCII
RAM: 4x4GB Corsair Vengeance Black
PSU: Corsair Enthusiast Series TX750
HDD: 2TB Western Digital Caviar Green
OS: Windows 7 Home Edition OEM