Did you ever find a fix. My system is sitting here on Quiet profile in dell power manager, with throttle stop with turbo disabled, and -.125 mv undervolt and temp of only 42c with 2% cpu load (basically idling). And the right fans will not shut off. This thing is about to get returned. I'm getting 2:42 hours of battery life (power saver mode enabled) and these fans won't shut off unless I use an third party software to force them off. I have done a complete factory reset and still no change. I average 36c to 42c and the fans will not cut out.
I had a similar problem with a new model. Nothing running other than a browser & mail client open, but fan running constantly and lots of disk activity even though it appeared to be idle.
I've been diligent about making sure all the latest Microsoft Windows 10 updates (including optional drivers) are installed, along with the Dell Update Manager tool checks for getting video and BIOS updates in early. I've not noticed fan noise lately, but let me evaluate it again while I type out this reply over the next hour...
Testing started!
On AC power, the laptop is currently silent after just turning it on and not using it. Ambient temperature is 70 F. I'm letting it just sit, doing nothing, and will listen to it for 20 minutes. All I hear right now is an almost imperceptible electronic buzz (coil whine?) when I put my ear just over the keys on the keyboard. It's totally silent otherwise. No fans.
At 5 minutes, the fans just spun up and are going at their first couple levels of fan speed. Opening task manager... It's Windows Defender (Antimalware Service Executable) running with "High power" usage which is causing the CPU to heat up. This is reasonable.
Also, at 10 minutes running, apparently, there was a new windows update (2021-03 Cumulative Update for Windows 10 20H2) because I just got a notification that I need to restart the laptop. So that means Windows Update was cranking in the background after logging in. The fans ratcheted up one more level briefly, and now they're not spinning at all. Totally expected behavior.
Now at 15 minutes, it's silent again. Restarting the 9500 now to get that update installed...
Logged in again. Fans are spinning, which I suspected after a restart. CPU usage is 4%. I did notice network usage was 9% for a while, so that was probably One Drive doing a sync check and other background tasks. Letting it settle in for 5 minutes to allow Windows update, defender, and all that to do their thing. While waiting, CPU is presently at 1% and there's intermittent fan sound, cycling between none and the lowest speed.
After 5 minutes (now 25 mins total ON time) the CPU is 1%, surface temperature of the Windows Key (measured with an infrared thermal sensing gun) is 98 deg F. I chose the Windows Key because it's easy to remember and also seems to be the hottest point on this keyboard. The fan is mostly silent. But every now and then I'll hear it spin up at its lowest speed for a few seconds and then fall away to silent again. This repeats randomly. The fan spins for such a short period of time in these tiny bursts, I don't see how they're really doing any cooling when the laptop is already about as cool as it'll get and the CPU is doing nothing.
Now after 30 minutes of ON time, I'm disconnecting the AC power and will let it run on battery for another 20 minutes to see what happens...
On battery which started at 96% (oddly, not 100%? --- it's been on AC solid for days). Battery Saver is disabled. Only Task Manager running in the foreground window. Screen brightness is at 20. 5 hours 35 mins estimated runtime remaining. I've heard the fans doing their on-and-off cycling a half dozen times within 30 seconds.
Running now at 35 minutes (and on battery for 5 mins), Windows key surface temp is 94 F. Battery 95% with 6h24m remaining. Fans mostly silent now. CPU 1%.
Running now at 40 minutes (and on battery for 10 mins and laptop went into sleep mode), Windows key surface temp is 86 F. Battery 94% with 6h10m remaining. Fans silent. CPU 1%.
Running now at 45 minutes (and on battery for 15 mins and laptop went into sleep mode), Windows key surface temp is 88 F. Battery 92% with 6h9m remaining. Fans silent. CPU 1%.
At this point, I'm concluding that it'll run like this until the battery drains.
Running at 50 minutes, the battery got down to 91% before I plugged it back into AC. After a minute, it's up to 92% with 14 minutes before a full charge. No fans -- and this is surprising because I fully expected them to kick in during battery recharge. Windows Key temp is 94 F. I'll wait for the battery to fully recharge...
One full hour of ON time, the battery on AC for 15 minutes now: It's at 97% with 5 more minutes before a full charge (I bet it'll drag out longer than that for the last 3%). CPU 1%. Windows Key temp 96 F. Fans have been silent during the preceding 15 minutes. Nice.
Testing done!
Conclusion and suggestions for Dell and owners of the XPS 9500:
Users: Stay on top of the updates (Windows, Dell BIOS, drivers, etc.). Yes, Dell will occasionally screw up something in a BIOS update, or introduce BIOS changes that aren't fully optimized for current Windows 10 or vendor drivers, and we'll see issues like terrible frame rate performance in games. It's annoying. But Dell has been pretty good about releasing fixes for those. So again, stay on top of the updates and report your issues to Dell ASAP so we minimize the amount of time between fixes. Also, dump any bloatware you don't need (lol, Dell won't let me call it out as c-r-a-p software), especially startup items that you can turn on manually if/when you need them. Also, aside from cleaning out the junkware, I'm running on stock vanilla Dell XPS 9500 install. No BIOS tweaks. No overclocking.
Dell: I think you need to do some better dampening on your fan algorithm so it doesn't do these short "spin bursts". Let the chips heat up a little more and then run the fans for a while longer to really get the temperature down a few extra degrees. It seems like there's a zero-threshold tolerance before they kick in for a second and then kick off. My preference, if we must live with fans, is to let them run a while longer so they can be off a while longer. The irritatingly rhythmic short spin cycles is just annoying otherwise, and seems to be the behavior whenever the temperature gets near that magic threshold.
what bios version you talking about please i have i 7 10th gen 64 gb ram but i won't notice because i leave it plug-in all time
i would like to know if someone could help take control over the fans i do heavy editing on laptop it gets super hot in ultra performance mode the fans takes too long to start spinning i dont care about the noise and i cant control the fans if someone out there that can help me tweak the bios to take control
Suffering from the same issues but i have right speaker tweeter blow up i think the extra volume maxxaudiopro is the cause i suggest disabling it specially if you listen to music on speakers
I know this is years later, but hopefully, it will help someone. I had the same issue, as soon as I turned the computer on the fans turned on. I tried absolutely everything, even taking it to get looked at. This morning when the computer was turning on, the bios screen showed it was in manufacturing mode. I pressed "Alt+F" while the computer was booting up, and it fixed the problem!
Judd_Canada
1 Message
1
March 9th, 2021 02:00
Did you ever find a fix. My system is sitting here on Quiet profile in dell power manager, with throttle stop with turbo disabled, and -.125 mv undervolt and temp of only 42c with 2% cpu load (basically idling). And the right fans will not shut off. This thing is about to get returned. I'm getting 2:42 hours of battery life (power saver mode enabled) and these fans won't shut off unless I use an third party software to force them off. I have done a complete factory reset and still no change. I average 36c to 42c and the fans will not cut out.
bananamour
1 Rookie
•
8 Posts
0
March 9th, 2021 15:00
I had a similar problem with a new model. Nothing running other than a browser & mail client open, but fan running constantly and lots of disk activity even though it appeared to be idle.
I noticed that the Killer Networking app kept jumping to the top of disk activity every 10 seconds or so. I uninstalled it (you need to do more than just use the windows uninstall - see https://support.killernetworking.com/download/killer-uninstaller/)
Once I did this, everything was fine. Dell wanted me to re-install Killer but couldn't explain why I needed it, so I haven't bothered.
morganwdavis
1 Rookie
•
4 Posts
0
March 9th, 2021 16:00
I've been diligent about making sure all the latest Microsoft Windows 10 updates (including optional drivers) are installed, along with the Dell Update Manager tool checks for getting video and BIOS updates in early. I've not noticed fan noise lately, but let me evaluate it again while I type out this reply over the next hour...
Testing started!
On AC power, the laptop is currently silent after just turning it on and not using it. Ambient temperature is 70 F. I'm letting it just sit, doing nothing, and will listen to it for 20 minutes. All I hear right now is an almost imperceptible electronic buzz (coil whine?) when I put my ear just over the keys on the keyboard. It's totally silent otherwise. No fans.
At 5 minutes, the fans just spun up and are going at their first couple levels of fan speed. Opening task manager... It's Windows Defender (Antimalware Service Executable) running with "High power" usage which is causing the CPU to heat up. This is reasonable.
Also, at 10 minutes running, apparently, there was a new windows update (2021-03 Cumulative Update for Windows 10 20H2) because I just got a notification that I need to restart the laptop. So that means Windows Update was cranking in the background after logging in. The fans ratcheted up one more level briefly, and now they're not spinning at all. Totally expected behavior.
Now at 15 minutes, it's silent again. Restarting the 9500 now to get that update installed...
Logged in again. Fans are spinning, which I suspected after a restart. CPU usage is 4%. I did notice network usage was 9% for a while, so that was probably One Drive doing a sync check and other background tasks. Letting it settle in for 5 minutes to allow Windows update, defender, and all that to do their thing. While waiting, CPU is presently at 1% and there's intermittent fan sound, cycling between none and the lowest speed.
After 5 minutes (now 25 mins total ON time) the CPU is 1%, surface temperature of the Windows Key (measured with an infrared thermal sensing gun) is 98 deg F. I chose the Windows Key because it's easy to remember and also seems to be the hottest point on this keyboard. The fan is mostly silent. But every now and then I'll hear it spin up at its lowest speed for a few seconds and then fall away to silent again. This repeats randomly. The fan spins for such a short period of time in these tiny bursts, I don't see how they're really doing any cooling when the laptop is already about as cool as it'll get and the CPU is doing nothing.
Now after 30 minutes of ON time, I'm disconnecting the AC power and will let it run on battery for another 20 minutes to see what happens...
On battery which started at 96% (oddly, not 100%? --- it's been on AC solid for days). Battery Saver is disabled. Only Task Manager running in the foreground window. Screen brightness is at 20. 5 hours 35 mins estimated runtime remaining. I've heard the fans doing their on-and-off cycling a half dozen times within 30 seconds.
Running now at 35 minutes (and on battery for 5 mins), Windows key surface temp is 94 F. Battery 95% with 6h24m remaining. Fans mostly silent now. CPU 1%.
Running now at 40 minutes (and on battery for 10 mins and laptop went into sleep mode), Windows key surface temp is 86 F. Battery 94% with 6h10m remaining. Fans silent. CPU 1%.
Running now at 45 minutes (and on battery for 15 mins and laptop went into sleep mode), Windows key surface temp is 88 F. Battery 92% with 6h9m remaining. Fans silent. CPU 1%.
At this point, I'm concluding that it'll run like this until the battery drains.
Running at 50 minutes, the battery got down to 91% before I plugged it back into AC. After a minute, it's up to 92% with 14 minutes before a full charge. No fans -- and this is surprising because I fully expected them to kick in during battery recharge. Windows Key temp is 94 F. I'll wait for the battery to fully recharge...
One full hour of ON time, the battery on AC for 15 minutes now: It's at 97% with 5 more minutes before a full charge (I bet it'll drag out longer than that for the last 3%). CPU 1%. Windows Key temp 96 F. Fans have been silent during the preceding 15 minutes. Nice.
Testing done!
Conclusion and suggestions for Dell and owners of the XPS 9500:
Users: Stay on top of the updates (Windows, Dell BIOS, drivers, etc.). Yes, Dell will occasionally screw up something in a BIOS update, or introduce BIOS changes that aren't fully optimized for current Windows 10 or vendor drivers, and we'll see issues like terrible frame rate performance in games. It's annoying. But Dell has been pretty good about releasing fixes for those. So again, stay on top of the updates and report your issues to Dell ASAP so we minimize the amount of time between fixes. Also, dump any bloatware you don't need (lol, Dell won't let me call it out as c-r-a-p software), especially startup items that you can turn on manually if/when you need them. Also, aside from cleaning out the junkware, I'm running on stock vanilla Dell XPS 9500 install. No BIOS tweaks. No overclocking.
Dell: I think you need to do some better dampening on your fan algorithm so it doesn't do these short "spin bursts". Let the chips heat up a little more and then run the fans for a while longer to really get the temperature down a few extra degrees. It seems like there's a zero-threshold tolerance before they kick in for a second and then kick off. My preference, if we must live with fans, is to let them run a while longer so they can be off a while longer. The irritatingly rhythmic short spin cycles is just annoying otherwise, and seems to be the behavior whenever the temperature gets near that magic threshold.
StarDust1004
3 Posts
0
April 17th, 2021 02:00
This expensive Laptop Fan was keeping running
Someone suggested making it cool on Dell Power Management
now after BIOS update "cool or Quite" make very noisy and constant Fan running
so I tried "Optimized" now it sounds like working but it is very Hot on Keypad (Left side)
1) First Wifi problem -Kinda fixed now I guess but still bad compares to my other laptop
2) Constant Fan problem - not they got fixed on Fan by stopping it but not the Temperature
3) Wiggly touchpad -They got no idea how bad it is
Albert9506
11 Posts
0
August 5th, 2021 07:00
what bios version you talking about please i have i 7 10th gen 64 gb ram but i won't notice because i leave it plug-in all time
i would like to know if someone could help take control over the fans i do heavy editing on laptop it gets super hot in ultra performance mode the fans takes too long to start spinning i dont care about the noise and i cant control the fans if someone out there that can help me tweak the bios to take control
Albert9506
11 Posts
0
August 5th, 2021 07:00
Suffering from the same issues but i have right speaker tweeter blow up i think the extra volume maxxaudiopro is the cause i suggest disabling it specially if you listen to music on speakers
Albert9506
11 Posts
0
August 5th, 2021 07:00
are you sure -.125 mv undervolt is stable ? i have mine 50 mv i didn't try to push it afraid to loose performances
Christian Godfrey
1 Rookie
•
1 Message
0
July 10th, 2024 16:58
I know this is years later, but hopefully, it will help someone. I had the same issue, as soon as I turned the computer on the fans turned on. I tried absolutely everything, even taking it to get looked at. This morning when the computer was turning on, the bios screen showed it was in manufacturing mode. I pressed "Alt+F" while the computer was booting up, and it fixed the problem!
twentymiles22
1 Rookie
•
1 Message
0
August 2nd, 2025 18:44
I have the exact same problem here. I recently replaced my SSD, thinking that it could be an overheating problem caused by this component.
Well the overall temperature is now under 50°C but the problem remains.
Are there any news about it? Could it be a problem regarding bios or, worst... motherboards?