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Forum Discussion
System Suddenly Very Loud
Recently I noticed that my NAS (Legacy Ultra 6 Plus, with upgraded CPU and memory, running 6.7.4), which until then had been near-inaudible except possibly during boots or shutdowns, had become very ...
Your system fan is running at a reasonable speed. CPU fan is a bit high. But if that's causing a lot of excess noise, you may have a fan in need of replacement. Your stats are close to mine; my systemn fan is about 100RPM faster. But my computer room may be warmer than yours.
Hmm. I guess it is possible that the CPU fan went terribly bad (going from inaudible a foot or two away to making a racket six feet and a door away) and the system updates were just a coincidence. Let me see if replacing it with another from my bag of left-over system pieces helps.
And, yes, even in the midst of the current heat wave, the closet is nice and cool, no warmer than 20 degrees Celsius.
Latest (and possibly last) update:
Opened the system again and had it run opened. Stopping the various fans manually showed that neither the system fan nor the CPU fan was the culprit. Rather it was the much more difficult to access PSU fan. Unless that is subject to software control, this preclude the possibility that it was a software update that was at fault.
Now I just need to find a replacement fan. It is somewhat unusual type (2-pin, 12 V, 0.25 A) compared to most of the spares I had (3-pin, 12 V, 0.08A).
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