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Updating the BIOS on a Latitude Laptop Sets Dell Power Management to Optimizer Mode by Default

Résumé: The following article provides information about why the Dell Power Management setting is set to Optimizer Mode. This is happening by default after updating the BIOS on a Latitude laptop. ...

Cet article concerne Cet article ne concerne pas Cet article n’est associé à aucun produit spécifique. Toutes les versions du produit ne sont pas identifiées dans cet article.
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Symptômes

New Latitude BIOS Default Sets the Dell Power Manager Utility to Optimizer Mode

 

Latitude Laptop and Precision Mobile Workstation owners have reported a change with Dell Power Management (DPM) after updating their BIOS.

The Dell Power Manager (DPM) utility is now set to Optimizer Mode by default.

The impacted computers and BIOS versions are as follows:

Laptop Model BIOS Revision
Latitude 3301 1.15.0
Latitude 3310 1.9.1
Latitude 3310 2-in-1 1.8.0
Latitude 3400, and 3500 1.17.0
Precision 3540 1.10.1
Precision 3541 1.11.1
Latitude 5300, and 5300 2-in-1 1.14.0
Latitude 5400, and 5500 1.10.1
Latitude 5401, and 5501 1.11.1
Latitude 7200 2-in-1 1.11.0
Latitude 7300, 7400, and 7400 2-in-1 1.11.1
Precision 7540 1.12.0
Precision 7740 1.12.0
 


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Cause

Updating to these BIOS versions (or newer) sets up the BIOS-based User Selectable Thermal Tables (USTT) feature for these computers. The USTT feature is what changes the default setting to Optimizer mode.


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Résolution

Note: This is the expected behavior of the newer BIOS updates.
 

When the BIOS update is installed, and has enabled the USTT feature. Any future BIOS updates should have the DPM setting remain without any further change.

However, If you were to skip installing the version in the above table. If instead you were to update directly to a higher version in the future. Dell Power Management is still default set to Optimizer mode.

If you need Dell Power Management set to a different mode, you should:

  1. Update your BIOS.
  2. Enter the BIOS.
  3. Manually change the Dell Power Management setting.

To Download and install the latest BIOS for your computer:

WARNING: Dell recommends disconnecting devices such as external hard drives, printers, scanners, and so on, before updating the BIOS.
WARNING: Dell laptops must have the battery installed and charged to at least 10% before you begin the BIOS update. Dell recommends connecting the laptop to AC power before proceeding with the update process.
NOTE: To learn more about updating the BIOS on a Dell computer, see the Dell knowledge base article Dell BIOS Updates.
NOTE: To install the BIOS, your user account must have administrator privileges.
  1. Browse to https://www.dell.com/support/drivers.
  2. Identify your Dell computer.
    1. Click Download and Install SupportAssist to auto-detect your Dell computer. Follow the on-screen instructions to install Dell SupportAssist. For more information, see the Dell knowledge base article Dell SupportAssist (formerly Dell System Detect): Overview and Common Questions.
    2. Enter the Service Tag of the laptop and click Search.
    3. Or, click Browse all products and select your Dell computer from the catalog.
  3. Select the Operating System that is installed on the Dell computer.
  4. Under Category, select BIOS.
  5. Locate the latest System BIOS.
  6. Click Download and save the file to your computer.
  7. Open File Explorer and browse to the location where the downloaded file is saved.
  8. Double-click the BIOS setup file and follow the on-screen instructions to complete the installation process.
  9. The computer restarts as part of the BIOS installation process.


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Produits

Latitude 7200 2-in-1, Latitude 3301, Latitude 3310 2-in-1, Latitude 3310, Latitude 5300 2-in-1, Latitude 5300, Latitude 7300, Latitude 3400, Latitude 5400, Latitude 5401, Latitude 7400 2-in-1, Latitude 7400, Latitude 3500, Latitude 5500 , Latitude 5501, Precision 3540, Precision 3541, Precision 7540, Precision 7740 ...
Propriétés de l’article
Numéro d’article: 000184154
Type d’article: Solution
Dernière modification: 23 Aug 2021
Version:  2
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