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January 29th, 2025 14:54

dell precision 7680 overheating - not a new thing

Hi to everyone, checked out this case myself, we have multiple issue with the 7680 under windows 11, did a few simple tests

1- go in the bios of the computer, put  under the power section, thermal management, try the different mode, I have put in cool mode to see if the cpu fan turn normaly, when they don't they just overheat the system, click apply changes when you do any changes, you will see and feel the cpu fans workout or not.

2- go and click on the Perfomance tab on the left of the bios screen, go down the list until you get to the intel turbo boost technology and disable it, that will give a break to the cpu fans, since the cpu won't issue more performance, but you only do this to diagnose the issue.

In my case, one of the cpu fans what not aligned correctly, so it did a strange sound and will all options for performance enabled, you could cook an egg on the keyboard with ease. There is for what I can see a definite design flaw, when the computer is new out of the box, it steers normally for the first weeks, but after that, when the heat goes up, one of the cpu fans start turning a little bit out of it's normal cycle until the cpu fan becomes loud, even so loud that some of our users here had to work from home, because of the noise, we did do many cpu array ticket to make the cpu fans assembly to be changed by Dell. But if you call Dell, you will need a least 2 hours, since the debug session with them is very long, when they come and change the cpu fan assembly, the 2 cpu fans, the computer goes way better, less sound and better performance and what do you know, less heat, more normal.

For the moment Dell is on the market, like a young kid, compared to other companies, like Lenovo that got the adult level on building computers. That said if you buy Dell, please take the big warranty on site, let them do the leg work.

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April 14th, 2025 13:16

I have a Dell Optiplex 7000 series (i9 40gb, 1Tb NVME fast hard drive) and it has overheated since day 1. I had to buy a new machine for reliability. I set up the Optiplex and monitored it under various conditions. Ultimately, I found the following: If I relied on the Windows 11 'Power Management' to put the monitor to sleep, the software also put the CPU fan to sleep.  The computer was always in the 'Never' sleep mode under Window11 power management. When I move the mouse or pressed the keyboard, I noticed the CPU temperature was 78C. (I used Speecy to monitor the temp). Very quickly the temperature dropped to 40C-50C and stayed there.   I then disabled the Windows 11 Power setting on the monitor - set to NEVER, and noticed the temperature stayed in the 40C to 50C range. I then turned off the monitor manually and ran several tests: 10min, 20min, 1hr, etc. After I turned on the monitor the temp was still at 40C - 50C. I performed this testing process multiple times over 2 weeks to ensure of the results were consistent. As I write this reply, I turned on the monitor, logged in and the temp is 39C. 

My conclusion was that Windows, probably through the BIOS, was signaling the monitor to go to sleep, but the BIOS also put the CPU fan to sleep. My supposition.

Hope this helps. 

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