I am using Gigabytes SIV (fan controller) and have "smart fan" enabled.Īfter the system sits idle for some time. This is on a Gigabyte Z97-UD5H board.ĬPU/CPU OPT/System Fail Warning "Enabled"ĬPU OPT Fan Speed Control set to "Normal" My CPU fans randomly stop working all together, and will not restart without rebooting. I hope someone can come to my rescue, open to any suggestions and comparisons.I have a relatively new build, details are below. Power supply: CoolerMaster Silent Pro 850W Motherboard: Gigabyte X570 AORUS PRO \ BIOS: F31e I have the latest chipset version installed. Now, I wanted to understand if I am the only one affected by this anomalous behavior and if there is a possibility of solving the problem without losing frequencies (with CPB active the different cores reach up to 4.4 Ghz). In this way I get stable rpm on the fans and a more than satisfactory silence. To "buffer" the problem the only solution found was to set clock the CPU, from the BIOS I set the base clock speed to 100 and the "multiplier" to 40 (I don't know if it's still called that, I did school on an old AMD Athlon Xp) and disabled the Core performance boost.īy doing so I get all the cores locked around 4 Ghz stable (remember that it has a base frequency of 3.6 Ghz) without going to set different voltages. Going to investigate, I realized that this depended on a bizarre management of the frequencies on the different cores that were continuously raised and lowered, thus giving temperature peaks and consequent rpm increase. Let me explain better, during the normal use of the PC, the rotation speed of the fans varied suddenly, slowing down and increasing the speed regardless of a more or less intensive use of the CPU. I get to the point immediately, for about a year I have been the owner of a ryzen 3700x (complete configuration below), I immediately noticed an anomalous behavior in the ventilation.
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