My PC freezes or crashes completely at random, and the issue happens so suddenly that Windows never records anything useful in the crash logs. I have already had the hardware and software checked, updated the BIOS and drivers, and reinstalled Windows, but the problem continues. When it happens, the only way to recover is holding down the power button. It can occur while gaming, but it has also happened during simple tasks like moving pictures between folders. My system has a Ryzen 7 5700X, 32 GB of RAM, and an NVIDIA GeForce RTX 4060. What should I test next, and how can I safely determine whether a component such as the power supply, RAM, storage, or GPU is failing?
4 Answers
Sometimes there is no single software test that identifies the problem, especially when the system hard-locks. The practical method is to test or swap one suspect part at a time: PSU, RAM, storage, GPU, and eventually the motherboard or CPU. Start with the easiest checks: run one memory module at a time, test the RAM with a proper memory diagnostic, disconnect nonessential drives, and if your motherboard supports integrated graphics, temporarily remove the RTX 4060 and use the onboard output. Testing with known-good parts is the most reliable approach.
Since reinstalling Windows and updating the BIOS and drivers did not help, the power supply is one of the first things I would investigate. A failing or poor-quality PSU can cause sudden freezes and shutdowns without leaving a useful software error. Do not open the PSU itself; if you replace it, disconnect the PC from power, label or photograph every cable, and replace every modular cable with the cables that come with the new unit. If you are uncomfortable doing that, a repair shop can test or install it safely.
Because the freezes happen both during games and while doing light tasks, check more than just CPU and GPU temperatures. Run a hardware monitor while the computer is idle and under load, and watch for temperature spikes, abnormal voltages, or drives disappearing. Reseat the RAM and GPU, reconnect the motherboard and storage cables, and test with one RAM stick at a time. This can reveal unstable memory or a loose connection.
The crashes used to happen almost every time I played Valorant, so I suspected its anti-cheat software, but they continued after I stopped playing. I have also had at least one freeze while simply moving files, so it does not seem limited to heavy gaming.
The exact motherboard, power-supply model and wattage, storage drives, and RAM configuration would help narrow this down. A low-quality or failing PSU and a failing SSD are both plausible causes. You can find most of the information in the BIOS, Windows System Information, or a hardware utility such as HWiNFO. The label on the side of the PSU will show its brand and wattage.
Windows has already been reinstalled, so that part did not change anything. I have not tested the power supply because I am nervous about replacing it, but I will look into having it tested or installed properly.