I have the HD 7790 and I absolutely love it. But for the past one week a strange issue seems to be cropping up. My GPU overheats and the system shuts down. First let me come to the diagnosis and how I got to it.
1. I did stress tests on my CPU and logged the temperatures: 50 degrees each core.
2. I did stress tests using OCCT and I saw on full screen the temperature escalated to 74 degrees. I logged the results using GPU Z and I saw that the temperature was indeed increasing drastically.
3. Next, I opened up my case and did the same test again, the temperature readings were same. Conclusion: Case air flow isn't the problem.
4. Opened up catalyst control center and Checked manual fan control in AMD overdrive. Switched fan speed to 90 percent. Did same test again. The temperature was now barely at 55 degrees. The test passed.
So, to summarize. My GPU fan speed doesn't increase in relation to the heating of the GPU. I have tested the PSU already, but #4 should be proof that there isn't anything wrong with the PSU. How can I get the GPU to automatically increase fan speed and why did this issue even crop up after 10 months of usage. I have played all heavy gfx/rendering games before (Metro LL and Cry3) but now this issue seems to have cropped up randomly.
Do I need to re install the driver? Do something with the firmware? Please help.
Specs: Intel G2130 3.2GHz, HD 7790, GA - Z77 - DS3H, Corsair 500MX, 8GB RAM.
Tools Used: OCCT, CoreTemp, GPU Z.
Catalyst Build Version: 2013.0314.338.4633