Windows 10: Unknown error or is it normal- fan speed variation- dell latitude 7490

I found out my fan has a very unstable speed when I kept the computer on no-load after some video editing. Is this normal or should I get this fixed?. my CPU temps were around 60 degrees Celsius. I only noticed such a thing when I upgraded to windows 11 pro... I was on windows 10 pro and the roll back time period is over for me.

:)

 

fan is running at full speed

I have a problem with a fan because it is running at full speed all the time. It is an old problem which I am unable to fix. I think the OS cannot detect the hardware and force the fan to run at full speed. It is Dell Precision T3500, Windows 10, ver.
10.0.17763.

I received an error message saying: Card cage alert fan failure, press F1 to continue, Dell Precision T3500

 

No drive found on my internal hard disk on Dell Latitude E5430.

Hello,My laptop (Dell Latitude E5430) was working perfectly till yesterday. But yesterday night, it restarted on its own and ever since, it's stuck at this screen:



Also, inside the BIOS, no UEFI bootable hard disk drive is being listed.



The UEFI flash disk option shown above is that of my bootable pen drive with Windows 10 installation copy.I googled this issue a bit and the results were as follows:

1. one thread suggested that I should run Dell's internal diagnostics to see if there anything wrong with hard disk. I did that but every component, including the hard disk one, passed these internal test.
   
   
2. a second thread suggested that I should try to remove and reseat the hard disk. I did that following Dell's user manual.
3. another thread suggested that I should reinstall my windows 10 afresh. But when I try to do so, the windows installation wizard doesn't list any drive in the hard disk. It's as if it doesn't detect hard disk at all.
   
   

In a nutshell, while the hard disk is being detected, but none of its drives is. However, the hard disk consisted of 3 drives:

1. C: with the windows' and applications' installations,
2. D: with all of my data,
3. E: which was recovery drive.

Any troubleshooting suggestions?I'm sorry I am not able to help you guys with any logs and stuff because I don't know how to get them when I can't get my Windows to boot. I'm not even sure if this is the correct section where I should be posting this thread.. I'm just so confused right now. *cry

A few weeks ago, I had upgraded (not fresh installation) from windows 10 version 1607 to 20H2. The version 1607 installation was a clean one (from scratch, after formatting the hard disk and creating new partitions).

 

Slow/Dropping Internet speed on Dell Latitude e5470 while with Windows 10

Hi,

I have a Dell Latitude 5470 with Intel AC 8260 running under Windows 10 (1607) Pro. The latest Driver 18.40.0.9 from the Dell website is installed.

When I run a speedtest http://www.speedtest.net/de/ the
download speed starts with 60MBit/s and after a few seconds drops to around 5Mbit/s.

This happens only on Windows, when running the same test under Ubuntu (same Notebook, same Network), the download speed stays at 60MBit/s.

I use a FritzBox 7490 with the latest firmware 6.80.

The problem persists after upgrading to the latest Intel Driver
19.30.0.4

I already contacted Intel Support https://communities.intel.com/thread/111345

Thanks

Jakob

[Original title: Intel AC 8260 slow with Win10, ok with Ubuntu]

[Subject edited for clarity by the moderator]