Faulty Power Supply ?
Faulty Power Supply ?
I face a rather unusual issue.
My PSU is a 2017 750W Corsair RM750W Gold certified unit.
In autumn 2022, when I had the same PSU, an i7 4790K, 16GB RAM and a GTX 1660Ti, my PC began to restart randomly or even shut down. At first it occurred once every few days, then more frequently until my system completely stopped working.
I removed the CMOS battery and disconnected the HDD, SSD, GPU. I was able to boot only with one set of RAM and the built-in graphics card. After that, I installed another memory module, the SSD, the HDD, and the GPU.
How did I resolve the problem? I unplugged all the case fans even before running my PC with the case open. Then everything functioned properly.
This summer I upgraded to an AMD Ryzen 7700, 32GB DDR5 6000 and RTX 4070, replaced the old case with a new one, but kept the original PSU.
A day after installing the new case and connecting the fans, my PC started crashing again. The next day it simply failed to start.
I repeated the same steps as two years ago and disconnected all the fans, running my PC with the case open. Now everything is working correctly.
I reduced the CPU voltage and limited the maximum turbo boost frequency to 5 GHz instead of 5.3 GHz; now it stays below 70°C even during stress tests and remains fully stable.
I recall MSI Afterburner displaying around 130W power usage for the 1660Ti during a stress test when the GPU was at full capacity.
Now it shows about 200W for the RTX 4070 under heavy load. I can still run stress tests or play demanding games without issues, provided the fans are off.
I also have another issue with Windows 11. Sometimes the spinning wheel becomes stuck and prevents booting. On other occasions, windows boots but is extremely unresponsive, requiring a restart or shutdown.
This summer I upgraded to AMD Ryzen 7700, 32GB DDR5 6000 and RTX 4070, swapped the previous case for a new one, but retained the old power supply. Did you reinstall the OS in offline mode, then install all drivers using the latest version through an elevated command? Also, what is the BIOS version of your motherboard?
I created a bootable Windows 11 USB drive and performed a clean installation.
The motherboard model is MSI PRO B650M-P.
BIOS version is 7E27v1A (June 2024)
https://www.msi.com/Motherboard/PRO-B650M-P/support
Corsair Vengeance DDR5 6000 CL30, AMD EXPO compatible.