Yes, a faulty motherboard can lead to unstable frame rates.
Yes, a faulty motherboard can lead to unstable frame rates.
I've been dealing with stuttering issues in games for a long time and have asked numerous questions. Could a defective motherboard be responsible for the unpredictable frame rates you're experiencing?
I shared my recent update about CPU voltages and everything seems to be working well. The screenshot comes from SCUM where I achieved around 35% CPU usage and 99% GPU utilization. I haven’t verified the GPU voltages, but they remain consistent across four different GPUs. Here are the peak values while running SCUM in my monitor: I’ve replaced all components—PCIe bus to an i7, RAM, SSD, cables, and installed four distinct GPUs, including two 1070s. I experimented with various BIOS settings and profiles. I adjusted window configurations, optimized settings, tested multiple Windows versions on different drives, and used only essential software. I also changed the BIOS, tuned the iGPU, checked temperatures, voltages, and profiles. Ran numerous benchmarks like userbenchmark, furmark, Prime95, and PassMark Uni Engine (which stutters). Current specs: i7 4790 GX, GTX 1070, ROG Strix 16GB DDR3 RAM, Samsung Evo 860 EVGA Gold G2, 650W power supply.
Begin by identifying which titles are experiencing stuttering. Not all games are affected; some may be more prone than others. If hardware problems are suspected, playing is likely impossible. To analyze GPU/CPU performance with MSI Afterburner, you’ll need: thermals under stress, detailed CPU and GPU load data—including per-core usage. For instance, a 1070 Ti paired with a Ryzen 2700x at 4GHz can hit bottlenecks in modern games like GTA V, where the GPU stays busy 80-95% while the CPU struggles on core #7. Adjusting settings in games will only increase CPU strain as the system tries to maintain higher FPS than it can sustain.
The game experience is oddly inconsistent. Open-world titles and high-end titles both freeze heavily, especially when the frame rate spikes. Temperatures stay around 65-73°C during intense use. The CPU stays near 65-73°C under load, but the GPU keeps stable at 65°C across all cores. Stuttering occurs even with low CPU usage (like 35% in SCUM), happening consistently. I've tested two different CPUs and it remains the same. Did you check the voltage regulation changes I mentioned earlier? It might be related to the power supply or motherboard.
It looks like everything seems to be running smoothly, yet your frame times keep fluctuating. Could there be some faulty hardware at play?
You're likely hitting CPU limitations. The performance drops happen when core usage nears 100%. This means your GPU has to wait for the CPU to finish its tasks before it can receive data for more frames. Using overall CPU usage isn't a great way to detect bottlenecks, since most games don't handle multiple threads well and often depend on just a few cores.
However, my usage remains low on the individual cores (where did you notice 100%?) and the same occurs when I limit my frame rate to 60, even though my system can handle much more. This was observed during the latency test that needs to relate to this issue. https://imgur.com/a/cMo5PtB
The overall usage is minimal or the per-core usage is minimal. That difference is important because of the reason @RyzenDoctor highlights. It might be related to the drive setup.