XPS

Last reply by 07-31-2019 Unsolved
Start a Discussion
2 Jasper
2 Jasper
74941

XPS-15-9570 (Bios 1.7) - Fan 3sec On-Off Issue on Idle dGPU

My XPS 15 9570 is from October 2018 and has all the latest Updates.

The fans are constantly running on AC-charging. Thats fine. I understand, that the XPS gets a little hotter whle charging, so I am Ok with the fan noise.
While on AC without charging (I limit the charge to 90% in the Power Manager and start only if below 75%) the fans kick in sometimes on little load. And if the load stays, the fans are also constantly on. Thats also fine.

But the really annoying thing is when the fans go on and off in an approximately 3 second cycle.

After BIOS 1.7 I noticed that the fans kick in on Battery when the dGPU is activated. So for example I start Lightroom and the nvidia card activates.-> The fans go on and off in an never ending cycle. (They end, when I exit lightroom).

CPU Temps: 42-43°C  Idle with usage below 10%

GPU Temps: 40°C        Idle with 0% usage

Screenshot_for_FanNoise.png

I tried the Temperature/Fan-Control in the Power Manager. There is no difference between Optimized-Mode, Quiet Mode or the Ultra Performance Mode.

Before BIOS 1.7 I didn't notice such a behaviour. It is like the fan curve was equipped with an extra setting to start the fans whenever the dGPU is on without looking at the temperature.

So they are going like crazy "The dGPU is on, we must turn" ....3sec later.... "But we are cool now. Turn off the fans" ....repeat_from_beginning.

Is it possible to let the fans kick in only if the CPU or GPU is over 60°C and let them run until they are below 50°C. I can't think of how a short burst of fan power could make a positive impact on cooling the device. Sometimes the CPU is just used for a second to turn on an application and therefore goes just above ~50°C for a very short time. The fans start to spin a burst. Then the CPU goes Idle and and the temps are again below ~50°C. And they would reached it even without fans. But thats another issue.

 

EDIT: I posted this video of the described issue on the second page. Just want to add it here in the first post for completion.

https://www.youtube.com/watch?v=7_w4lRP7rCo

Replies (39)
3540

Hi,

I just wanted to report that I also had the annoying 5 sec on/off behaviour of the fan. I am on ubuntu 19.04.

I was almost giving up, but saw there was the new 1.10.1 BIOS out now, and upgraded without much hope, but actually it seems to have fixed the issue!

Anyone else upgrade and got it fixed?

 

3538

@asabertze 

Didn't fix it for me.

I am on Bios 1.10.1.

Issue persists.

3528

+1 on this issue, please investigate for a solution 

3509

@Michi491 as stated above, the case is closed by Dell, they wont fix it. Try to sell your laptop, tell everyone what a scam company Dell is.
2 Bronze
2 Bronze
2682

Hi there, 

I had the same issue after the upgrade of the BIOS to the latest version. I tried something and so far has been working => the fan doesn't start working on/off every few seconds. I disabled OneDrive and Dropbox on my laptop from task manager - startup  and so far everything is working okay. 

Cheers 

2665


@JKJ89 wrote:

Hi there, 

I had the same issue after the upgrade of the BIOS to the latest version. I tried something and so far has been working => the fan doesn't start working on/off every few seconds. I disabled OneDrive and Dropbox on my laptop from task manager - startup  and so far everything is working okay. 

Cheers 


Hi @JKJ89 

I have disabled Dropbox, OneDrive and the Backup and Sync from Google Drive a while ago. 

From that I got a battery improvement of around 1 hour.

But the fan issue is still there.

 

My solution is to send the laptop back to Dell next month. I had contact with the customer service due to other hardware issues and three times an onsite technician at my place. But thats another story. In short, customer service by Dell in Germany is great, but the onsite technicians are bad in 2 of 3 cases. I am allowed to send it back and get a full refund.

2456

So,

I have now started having this issue as of a few weeks ago.

I assumed it was dust in the machine so took off the cover and gave it a good compressed air blast, but didn't help so did some searching and came across this thread.

Going to try all the suggestions but wondering if anyone got anywhere with solving the issue?


Sanj

 

2455

Dell may see this as a non-issue as it doesn't affect system performance, but I record music on my laptop, so having a noisy laptop effectively stops me being able to use a microphone in the room!
2448

friendlysanj,

 

Click my name and private message me the pc service tag number as well as your registered name, email address, and phone number.

Is it the fan that is noisy?

 

 

If still under warranty, click the "Get help now" icon on the right to start a live chat session.
Find your Service Tag

Latest Solutions
Top Contributor