Over the past week, the Ryzen 9 5900X has been running extremely hot.
Over the past week, the Ryzen 9 5900X has been running extremely hot.
During the night I experienced my computer suddenly increasing fan speed then decreasing it repeatedly. This behavior was irritating, so I powered off the system, suspecting a Windows update or antivirus process was causing background activity. Now it keeps happening without any obvious reason. My CPU stays idle around 70-80 degrees with a voltage near 1.3v, which matches factory specs since I haven’t overclocked. I reduced the voltage to 1.025v to ease load and temperatures dropped to 51 degrees while idle—still high, but not alarming. I own an Enermax Liqmax III 360 AIO with three fans. During a stress test with AMD Ryzen Master, the CPU briefly reached 110 degrees before settling. I’ve tried cleaning the cooler and reapplying thermal paste without success. The pump continues to run and make a faint humming sound, confirming it’s active. When I disconnected the pump, temperatures spiked again, indicating it’s still functioning. I’m puzzled as I don’t notice any performance drop while gaming, thanks to ample CPU headroom. I’ve attached an HWMonitor showing idle temps from a stress test; it suggests a possible failing pump, though it’s still working. I’m hesitant to rush a purchase yet and want more insights before deciding on a new cooler. The AIO was purchased in late 2021 as a reference point.
Sure, I can attempt using another cooler and testing it in a different PC. The cooler should be noticeably cooler under heavy load, but its temperature will depend on the specific model and setup.
It appears the Enermax LiquiMax 3 model has been recalled due to clogging issues. and https://hothardware.com/news/affordable-...g-recalled. Your unit is likely impacted, so a replacement cooler is necessary. The cold radiator is the key indicator of the problem.
For the 5900X, a cooler like the Air cooler or AIO is suitable, though a 280/360/420 AIO would perform better.