It's hard to say without knowing your full specs and a detailed history of the problem and what you've tried. It could be, but the PSU usually doesn't cause these types of problems.
History of the problem: started around 2 weeks ago with BSODs and stuttering (especially noticable when scrolling, moving windows around, switching programs using ALT +TAB), programs crashing. BSODs were resolved with disabling the Asus Optimal profile in the BIOS (which disabled the overclock), but the stuttering persists.
Specs:
CPU: Ryzen 5 2600
MOBO: Asus Prime B450M-A
RAM: 2x8 GB TEAMGROUP T-Force Vulcan Z DDR4 3000 MHz, currently running at 2400 MHz
CPU cooler: SCYTHE Mugen 5 Rev. B
VGA: KFA2 GTX 1660 6GB
PSU: Cooler Master B500 v2 500W
SSD: Crucial MX500 500GB (OS drive)
HDD: WD 1TB Caviar Blue
OS: Windows 10
Steps I have already taken to resolve this myself:
- Clean wiping GPU drivers with DDU and reinstalling them
- Updating BIOS to latest stable version
- Reseating the GPU and checking the cabling
- Monitored GPU and CPU temperatures during gaming and usage which came out as normal
- Stress tested the CPU, GPU and RAM with multiple tests, both individually and simultaneously, but apart from the simultaneous test locking up the system until it was done, it all seemed normal
- Running a 3 hour MEMTEST to check for RAM failures, no errors in 4 passes
- Running the Windows memory diagnostics test (no errors)
- Running chkdisk and sfc for possible corruption
- Reinstalling Windows (had BSOD immidiately after getting back into Windows)
- Reset BIOS to defaults (disabling both the Asus Optimal profile which overclocked the CPU as well as disabling XMP for RAM)
- this seemed to solve (at least for now) the BSOD problem, but the other issues still remain
- Tried reseating the RAM, running the system with only one RAM stick, trying different RAM slots to no help
- Inspected the motherboard for any physical damage, but none could be seen
Would really appreciate if you could help me out!