Decoding System Failures: From 3700x to 5800x3d CPU Upgrades


For reference, my system includes a 2070 Super GPU, an upgrade from a 3700x to a 5800x3d CPU, a B450 Tomahawk Max motherboard, and a Corsair 650w PSU purchased in 2020.

Any advice or troubleshooting tips would be greatly appreciated.”


When faced with a PC that crashes to a black screen during gaming, despite all fans and RGB lighting remaining active, it’s essential to approach the issue methodically to identify the root cause. Given the system specifications—a 2070 Super GPU, a recently upgraded 5800x3d CPU from a 3700x, a B450 Tomahawk Max motherboard, and a Corsair 650w PSU purchased in 2020—there are several potential culprits to consider.

The Corsair 650w PSU, while a reputable brand, may be under strain. High-end GPUs like the 2070 Super, especially when combined with a powerful CPU like the 5800x3d, can draw significant power. It’s possible that during peak gaming moments, the PSU cannot supply enough power, leading to a system crash. Testing with a higher wattage PSU could rule out power deficiencies.

Graphics Processing Unit (GPU)

The GPU is often a primary suspect in gaming-related crashes. Overheating can occur even if fans are operational, so it’s worth checking for dust buildup or thermal paste degradation. Additionally, testing the GPU in another system or swapping in a different GPU can help determine if it’s the failure point.

Motherboard and BIOS

The B450 Tomahawk Max is a solid motherboard, but it’s crucial to ensure the BIOS is up to date, especially after a CPU upgrade. An outdated BIOS can lead to instability, particularly with newer CPUs. A BIOS update from the manufacturer’s website might resolve compatibility issues.


Faulty or unstable RAM can cause system crashes. Running a memory test or trying different RAM sticks could uncover issues here.

Software and Drivers

Outdated or corrupt drivers can also lead to system crashes. Ensure all drivers, particularly the GPU and chipset drivers, are up to date. Additionally, conflicting software or an unstable game can cause crashes, so consider a clean boot with minimal background processes.


If any components are overclocked, return them to stock speeds to test stability. Overclocking can cause crashes if the system is not stable at the higher speeds.

Heat and Ventilation

Ensure the PC case has adequate ventilation. Poor airflow can lead to overheating, even if individual component temperatures seem normal.


By systematically testing each component and ensuring all software is up to date, you can narrow down the cause of the crashes. If the issue persists, it may be worth consulting with a professional technician who can provide a hands-on diagnosis.

Remember, while troubleshooting can be frustrating, patience and a methodical approach will lead you to a solution. Good luck!

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