XPS 15 9570 is really slow after update to BIOS 1.11.2

Hello, I was just back to the previous BIOS version 1.10.1. Unfortunately the problem was not gone. So I am not sure, if the problem starts with a previous BIOS version or the problem is not fixed with a BIOS rollback or I have some other troubles.... Are there any other users having he same trouble? Regards, Thomas.

Hallo,

 

some further details:

 

Maybe that this problem is caused especially by Prime95 and other CPU intensive task are less effected by the low CPU frequenzy and low temporature problem. Even the Prim95 Test "Small FFTs" which uses less RAM is running stable at 2,5GHz at full FAN speed. Especially the "Blend" test which is using more RAM leads to low CPU frequencies (1,2GHz) at low FAN speed.

Regards,

Thomas.

Hello,

 

it seems, that the problem is not caused by the new BIOS.

 

It was and is:

 

Intel Dynamic Platform and Thermal Framework

 

After uninstalling and testing (before Windows update installs it again) the CPU reaches 97°C while stress testing again. Which is what I would expect in full performance mode (power plan and dell power magagement settings....)

 

Regards,

Thomas.

Hi ThomasXPS15,

Could you please advise how to uninstall "Intel Dynamic Platform and Thermal Framework"?

Thanks!

event-horizon,

 

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

 

Hello, some further details about my problem: I have an XPS 9570 for which I have updated following components: SSD: Samsung 970 EVO 2TB RAM: Corsair Vengeance SO-DIMM Kit 32GB, DDR4-2666, CL18-19-19-39 (CMSX32GX4M2A2666C18) Everything is working fine and stable since months (except the throtteling problem which suddenly appears somewhere in the past....). To solve the throtteling problem described above I have done following: 1. start Prime95 on 12 threads for some minutes (Windows 10 power setting "Max performance", Dell Power Manager: Optimized, on AC adapter) and wait until CPU goes down to about 1Ghz and fan getting silent... 2. start hwinfo and start watching of sensors for CPU frequency, fan speed, cpu temp, memory temp (if available), ssd temp, and the other ambient temp sensors. 3. open device manager 4. look for the "Intel Dynamic Platform and Thermal Framework Generic Participant" devices under "System devices" 5. for each of these devices open the properties and look for the device with "ACPI\INT3403\NGFF" as device path (this is the SSD device reporting sensor result to the Intel DPTF). 6. uninstall the device with the device path "ACPI\INT3403\NGFF" (via context menu of the device in the device manager tree) 7. immediately after the uninstall I could see, that the CPU goes up to 3GHz and above... (prime95 was still running) 8. also uninstall the device with the path "ACPI\INT3403\TMEM" 9. after that CPU was running as expected and normal thermal throtteling was started (fans are spinning up and CPU is working as fast as thermal conditions allow this... 3GHz and above...) WARNING: Windows would install the drivers for the uninstalled devices after triggering a "search for new devices" or via Windows update. So I have blocked device driver installation via group policy for devices with the hardware ID "ACPI\INT3403". Unfortunately all other still installed DPTF devices have the same hardware ID and they will not be updated via future driver updates with this policy. So this is still a temporary workaround. I think DELL has done a bad job implementing his BIOS for the XPS 15. It seems, that only hardware components distributed by DELL a supported by the BIOS. My own hardware replacements lead to wrong reported thermal sonsor data to DPTF causing this big thermal trotteling issures event all components are staying cold. I have also observed SSD and memory temperatures after uninstalling the both corresponding DPTF devices. CPU is running at full speed, fans are working at full speed while Prim95 is running and SSD and memory temp are staying stable far below the max operating temperatures. I hope this information helps to improve your XPS 15 and helps some others having the same troubles. Regards, Thomas.

ThomasXPS15,

 

Click my name and private message me the pc service tag number.

 

 

Hello, I think I have already send my service tag to you. But my service period is over... I have started this community post to give you some feedback about your product and to allow you to improve it. Maybe other customers have same troubles and my feedback could help them also. So I do not expect any individual support. Thanks, Thomas.

Hi, I had a very similar problem, 1.11.2 made everything very sluggish but ONLY when the laptop was plugged in. I have a XPS 15 9550 running elementary OS BTW.

Eventually, I rolled back on 1.10 and all is good.

A couple days ago, I saw that on the 9550 page Dell deleted 1.11.2 only to publish 1.9.0 (dating back from 2018) as the newest and latest; no idea why, since 1.10 is newer (March 2019) and works perfectly.

Today though 1.11.2 reappeared, with no mention of "Enhances thermal management of the system" in details.

I tried it, but the sluggishness when plugged in reappeared so I rolled back once again on 1.10.

Dell, make up your mind with 1.11.2!