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1490
May 28th, 2023 17:00
Optiplex 7090 fan not performing well
OptiPlex 7090
Optiplex 7090 with i7 11700 with 65W CPU cooler
CPU Reaches 100C while fan is still around 25% and it speeds up very slowly. There's no way to control thermal management in Bios but I'd describe this mode at best as quiet.
I used cctk to check rpm but until cpu reaches about 93C it doesn't try to reach 1500 rpm while the fan can reach around 4500 rpm
All the fan tries to do is keep CPU below 90 and it fails as it never responds quickly enough
This happens with all BIOS versions.
is there any way to change thermal management. It's not supported in BIOS (most likely disabled don't know why).
I also tried Dell power manager, and any 3rd party software to control fans with no success (fans don't appear in any of them)
Chino de Oro
9 Legend
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8.1K Posts
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May 28th, 2023 18:00
Have you consider to give Dell Optimizer a try?
Dell Optimizer optimizes the performance of applications on your system. It improves productivity, performance, and user experience through system usage analysis and learning.
7sean68
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May 29th, 2023 14:00
yes, I did. same behavior.
Chino de Oro
9 Legend
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8.1K Posts
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May 29th, 2023 15:00
If the ultra performance in thermal settings could not increase fan speed, then might be some other setting was blocking it. There is Fan control override option in BIOS. By default it's disable, try to enable to see any different. You may also try power option set to high performance (in Control Panel).
If all options are exhausted, time to click on Get help now to chat with Dell support, they might replace the motherboard under warranty.
redxps630
9 Legend
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15.2K Posts
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May 30th, 2023 05:00
Re: Optiplex 7090 with i7 11700 with 65W CPU cooler
if you have 7090 tower, consider upgrade to 125W advanced air cooler or
7090 MTP.Heatsink, 125W
7sean68
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May 30th, 2023 12:00
Fan control override. but the fans are too noisy to be running at 100% all the time.
Control panel high performance doesn't affect fan speed.
7sean68
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May 30th, 2023 12:00
it may be better but I fear it will still behave similarly. the fan is powerful enough to keep the cpu cool ... but it waits too much before speeding up to cool the cpu
7sean68
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May 30th, 2023 12:00
I have exhausted all options and it seems something by design not a problem in the board. as the fan. But prefers quietness over performance.
7sean68
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May 30th, 2023 12:00
thermal settings aren't available in optiplex. dell disabled it
redxps630
9 Legend
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15.2K Posts
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May 30th, 2023 22:00
the advanced tower cooler fan is larger and heatsink is more efficient so fan does not need to rev up. you are correct that the current bios has a bug. The basic 65w pancake cooler should not be used to cool modern cpu > 4 core, yet Dell keeps on using it.
tonschk
2 Intern
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187 Posts
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June 2nd, 2023 17:00
May be install the Speedfan software utility can help you?, I use in my Optiplex 780 MT and I can speed up to the max or slow down to a minimum the fan of the CPU cooler, is not too much accurate, just a suggestion, below the link and screenshot
https://www.almico.com/sfdownload.php
https://www.almico.com/speedfan452.exe
bradthetechnut
7 Technologist
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9.2K Posts
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June 4th, 2023 17:00
Upgrading CPU cooler is a good idea by @redxps630, A couple of things that may be worth trying meanwhile: 1. Reseat fan connection. 2. Try replacing fan. Use Dell OEM fan to keep it in warranty. Possible defective fan giving wrong feedback to MB? Not sure, but it might not hurt to find out. Also noted that you (@7sean68) noted fan RPM's.