Question Is it necessary to tune psu fan curve and monitor temperatures?

syykii

Honorable
Feb 8, 2020
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Hello, this might sound silly but Ive never in my 10 years have monitored psu temperatures or changed the fan curve but since i bought rtx 5090 with 9800x3d and on full utilization its pulling 1000w+ i was wondering if it was necessary to check it and tune it? I’ve ordered hx1500i atx 3.1 corsair psu, what are the highest temps it can reach before it becomes dangerous? Thanks in advance.
 
I have an MSI Ventus RTX 5090. It gets to 70C GPU temp and 76C on the memory temp (as recorded by GPU-Z) when running AI workflows in ComfyUI. I have all case fans running at 80% to vent the case including an extra upside down fan placed on top of the GPU open heatsink to help pull air through. I am running MSI afterburner at 70% power limit to reduce power draw at the wall maxxing at 620 watts on my 850W PSU. I am using FanControl v226 to manage fans and have set various profiles based on GPU temps. The one thing I CANNOT get to work is forcing the GPU fans to run at aspeed I want. It simply wont do it and insists on running at 30% most of the time, but I would prefer it set at 50% fixed to preserve the life of the GPU. I am satisfied with 70 - 80C but not higher. Long periods of 80-90C on the memory might fatigue it and reduce the lifetime, but I'm no expert.
What temps are you getting during your workloads ? 1000W+ is a lot of heat to expel.
 
All my fans except GPU at 100% when CPU gets to 70° C. They are between 50-60% at idle. I haven't adjusted the GPU fan as stock settings seem to be fine. Run your system fans as high as you can tolerate the noise. Fans are cheap.
 
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I have an MSI Ventus RTX 5090. It gets to 70C GPU temp and 76C on the memory temp (as recorded by GPU-Z) when running AI workflows in ComfyUI. I have all case fans running at 80% to vent the case including an extra upside down fan placed on top of the GPU open heatsink to help pull air through. I am running MSI afterburner at 70% power limit to reduce power draw at the wall maxxing at 620 watts on my 850W PSU. I am using FanControl v226 to manage fans and have set various profiles based on GPU temps. The one thing I CANNOT get to work is forcing the GPU fans to run at aspeed I want. It simply wont do it and insists on running at 30% most of the time, but I would prefer it set at 50% fixed to preserve the life of the GPU. I am satisfied with 70 - 80C but not higher. Long periods of 80-90C on the memory might fatigue it and reduce the lifetime, but I'm no expert.
What temps are you getting during your workloads ? 1000W+ is a lot of heat to expel.
Im getting 64C on 3000mhz OC on OCCT stress test at 550w