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According to this website, you have an underpowered PSU. The minimum required for your entire system with a R9 290 is a PSU of at least 650 Watts. PSU REQUIREMENTS - RealHardTechX
FYI: Windows 8/8.1 is not supported anymore by AMD. So whatever driver is available for the R9 290 is the last supported driver by AMD Support.
The last supported driver for Windows 8.1 is from 2017 from here: AMD Radeon™ R9 290 Drivers & Support | AMD .
You might want to stress test your GPU and PSU to see if it works correctly under stress and heavy loads. Especially the PSU. The only free diagnostic program that checks PSU is OCCT. You can download it from here: Download .
OCCT generates a folder called OCCT in Windows "Documents" Folder with several grahic data images whether a test completes successfully or not.
If you run the PSU test, and your computer shut down and probably indicates something is wrong with your PSU. I would run the GPU Test first in Full Screen with Errors checked. If that passes then run the PSU Test.
While running the OCCT GPU Test, check the outputs of the PSU 3.3/ 5.0/ and 12 Vdc and see if they are with 5% tolerances. (12 vdc minimum voltage should be equal to or higher than 11.4 Vdc). Also check the Temperature to make sure your CPU or GPU are not overheating causing your problem.
Thank you for your answer.
I used OCCT and GPU test went ok, outputs were ok too, but during power supply test after a while it showed that temperature for GPU was too high and the test was aborted.
Can an underpowered PSU cause my GPU to overheat?
Good question. Not sure.
Was the GPU fan running at 100% when it started to overheat?
What does the OCCT Folder show in "Documents' Folder in Windows? It should show the Temperature of the GPU and voltages of the PSU when the PSU test was running and after it crashed.
Use another Diagnostic Program called AIDA64 (AIDA64 | The Ultimate System Information, Diagnostics and Benchmark Tool ) to check your GPU card and see if it overheats.
Like I mentioned previously, The PSU TEST involves running both the CPU and GPU Tests at the same time.
Download this hardware monitoring software called HWMonitor from here: HWMONITOR | Softwares | CPUID
Install it and have it running constantly. If will show you all your Hardware Temperatures, Voltages, and Fan speeds. Then start playing a game and see if you see any unusual readings like high Temps or low voltages or low fan speeds.
Here are some websites concerning weak or failing PSU using OCCT PSU TEST:
This one is very similar to what is happening with your computer using OCCT: PSU failure or MOBO? (OCCT tests) - [Solved] - Components
Another where OCCT PSU Test fails immediately: Games/ OCCT PSU test rebooting PC ( PSU Problem?) - Internal Hardware
Your PSU is working fine. All three major Voltages were very good during the test. Your CPU temperature are good also.
Download and install HWMonitor and have it running while you are playing games or putting a heavy load on the CPU or GPU.
Keep a close eye on the Temperature of the GPU.
I found out the Maximum Operating Temperature for the R9 290 is 95c. So as long as the temperature stays below 95c, your GPU card should be okay.
You should control the R9 290 Fan using AMD Wattman or AMD Overdrive through Radeon Settings or through BIOS to run faster to keep your GPU cooler under load.
Sounds like it may be a driver issue.
Try installing a previous AMD Driver from here for Windows 8.1 from here and see if the problem continues : AMD Radeon™ R9 290 Previous Drivers | AMD
Try installing the 17.4.4 AMD Driver and see if the freezing continues.
Use this method to uninstall and install the AMD Driver:
install AMD driver:
1) Download the correct AMD Full Set of drivers from AMD Support. Make sure your Windows is fully updated via Windows Update. Windows Must be fully updated because the latest AMD Drivers requires all the latest "Optional" and "Recommended" updates to be installed.
2) Use Windows Uninstall to uninstall current AMD driver and software and disconnect the internet from your computer. Then use DDU (Display Driver Uninstaller) Display Driver Uninstaller (DDU) from Wagnardsoft Forum in Safe Mode. This will eliminate all traces of the AMD driver and software from your computer.
Delete C: \ AMD folder from the Root Directory. Reboot
3) Go to Device Manager and click "Display Adapter" and make sure you are on the MS Basic Display Adapter. If not, uninstall the AMD driver using Properties.
4) Try reinstalling the AMD FULL SET OF DRIVERS that you have downloaded manually. Make sure you disable the Internet to prevent Windows from installing a newer version. So configure windows to prevent it from updating drivers via windows update. So it has been mentioned to disable any anti-virus programs before installing AMD Drivers.
5) If the new AMD drivers installs and works correctly, delete again the C: \ AMD folder from the root directory. To save space on the HDD.
6) Enable both the Internet and Anti-Virus program (if applicable).
7) Go back to Device Manager and check your GPU card driver is working and identified correctly.
This thread as MS Forum also suggests downgrading the AMD Driver to a previous driver because the same DLL was crashing Explorer.exe: https://answers.microsoft.com/en-us/windows/forum/windows8_1-performance/explorerexe-constantly-crashing/c5fcaf08-627a-4…