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May 28th, 2021 20:00
CPU fan speed not accessible in Alienware Command Center
When I am on auto mode (Alien Control) the CPU fans run at about 4840 rpm. When I am on manual mode (User Control) the CPU fan runs at about 750 rpm. I found these numbers on HWiNFO. This PC is Alienware Aurora R5 but due to several upgrades (GPU, CPU, new Drive, etc...) I have had to reinstall Alienware Command Center. I have only upgraded to things compatible with the original motherboard (I haven't upgraded the motherboard). I don't know why it displays the CPU fan as a CPU pump but I have ignored it up until now. What I want to find out is how to change the CPU fan as I can the front and top fan. Right now it is either too loud to bear or my CPU temps reach unhealthy heights. I'm trying to adjust to reach the sweet spot in between.
r72019
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June 8th, 2021 20:00
There's probably an issue with the intel fan, and pwm responses not registering correctly, it's programmed specifically for the OEM dell fan. I'd suggest swapping the Intel fan and replacing with the OEM Dell fan.
r72019
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May 28th, 2021 20:00
The CPU fan speed is not user adjustable in AWCC, regardless whether it registers as a pump or a fan.
markb2575
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May 28th, 2021 20:00
Thank you but I have two more quick questions. What do front fan and top fan correlate to? And on auto mode, why is the CPU fan so much faster than in manual mode?
r72019
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May 28th, 2021 23:00
From my understanding the default for the top fan header is to track the CPU temps; and for the Front fan header, the default is the boot drive temps. The higher the temps, the faster the fans are supposed to run.
I think there may be an issue with your fan registering correctly.
The pump fan header on the motherboard is for the AIO unit (when you purchase liquid cooling). That should always run at 100%, if it registers tach, that would be around 5000 RPM.
The CPU Fan header is for air cooling. That should adjust based on CPU temperatures. Since your PC is showing "pump running" that is generally for liquid cooling, it may be registering as a pump. Is that an OEM dell 4 PIN fan that you are using? And is it connected to the CPU fan header? Alternatively, is it possible that the fans making the noise are the top or front fans?
markb2575
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June 3rd, 2021 21:00
Hi, sorry for the late response. When I bought a new CPU I installed the fan that came with it. It is 4 pin and plugged into the CPU fan slot. Also, im fairly certain that the loud noise is coming from the CPU fan because in auto mode the fan sounds louder, but the top and front fans are at lower levels than when I have it on manual.
markb2575
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June 4th, 2021 10:00
Currently, I think that since the fan is registered as a pump, it runs at 100% on auto mode (as a pump should). How would I register it to be a fan and not a pump?
markb2575
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June 8th, 2021 19:00
Hi, do you have any solutions to this? I'm still not sure what to do.
r72019
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June 8th, 2021 20:00
You could alternatively upgrade to liquid cooling with a Corsair H60 for example.
r72019
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June 8th, 2021 20:00
You could also verify the Intel fan connector is correctly connected and has all 4 wires properly connected / lined up to the pins.