F5F Stay Refreshed Hardware Desktop The water pump responds solely to GPU workload

The water pump responds solely to GPU workload

The water pump responds solely to GPU workload

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mineuout482
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12-09-2024, 05:47 PM
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I connected the pump to various headers—CPU_pump, CPU_fan, and CPU_fan_opt—and it worked fine. In BIOS it adjusted the fan curve based on CPU temperature. However, when using a fresh Windows installation (just two days old with minimal bloat), the pump didn't respond to CPU temperatures at all, only to GPU temps. All BIOS, Windows, GPU drivers, and chipset drivers were up to date. DDU didn’t help either. I haven’t installed any third-party control software like Asus Armory Crate. I even replaced the whole motherboard, applied optimized defaults, reset CMOS, but the issue persisted. After a second fresh Windows setup, it still didn’t resolve the problem. Under heavy load, the CPU ran smoothly at 90°C while the pump remained inactive, whereas the GPU kept the pump speed steady around 50-60°C (about 70°C hotspot). This started after switching from a 5600X to a 5800X3D. I couldn’t find any other reports of this issue online, which suggests it might be a software-related problem. I don’t have any software that can control fans or pump speed. This seems to be a fresh Windows installation, and I’ve been troubleshooting for hours without success. SPECS: CPU—AMD 5800X3D; Motherboard—Asus B550-E; GPU—PNY RTX 3080; RAM—24GB 3600MHz DDR4; PSU—Corsair RMx 850W; Cooler—Custom water loop with PWM pump. The only change I haven’t tried is reverting to the other CPU.
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M
mineuout482
12-09-2024, 05:47 PM #1

I connected the pump to various headers—CPU_pump, CPU_fan, and CPU_fan_opt—and it worked fine. In BIOS it adjusted the fan curve based on CPU temperature. However, when using a fresh Windows installation (just two days old with minimal bloat), the pump didn't respond to CPU temperatures at all, only to GPU temps. All BIOS, Windows, GPU drivers, and chipset drivers were up to date. DDU didn’t help either. I haven’t installed any third-party control software like Asus Armory Crate. I even replaced the whole motherboard, applied optimized defaults, reset CMOS, but the issue persisted. After a second fresh Windows setup, it still didn’t resolve the problem. Under heavy load, the CPU ran smoothly at 90°C while the pump remained inactive, whereas the GPU kept the pump speed steady around 50-60°C (about 70°C hotspot). This started after switching from a 5600X to a 5800X3D. I couldn’t find any other reports of this issue online, which suggests it might be a software-related problem. I don’t have any software that can control fans or pump speed. This seems to be a fresh Windows installation, and I’ve been troubleshooting for hours without success. SPECS: CPU—AMD 5800X3D; Motherboard—Asus B550-E; GPU—PNY RTX 3080; RAM—24GB 3600MHz DDR4; PSU—Corsair RMx 850W; Cooler—Custom water loop with PWM pump. The only change I haven’t tried is reverting to the other CPU.

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