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Dasharo Performance: Custom fan curve

Test cases common documentation

Test setup

  1. Proceed with the Generic test setup: firmware.
  2. Proceed with the Generic test setup: OS installer.
  3. Proceed with the Generic test setup: OS installation.
  4. Proceed with the Generic test setup: OS boot from disk.

CFC001.001 Custom fan curve silent profile measure (Ubuntu)

Test description

This test aims to verify that the fan curve is configured correctly in silent profile and the fan spins up and down according to the defined values.

Test configuration data

  1. FIRMWARE = Dasharo

Test setup

  1. Proceed with the Test cases common documentation section.
  2. Install stress-ng on the DUT.

Test steps

  1. Power on the DUT.
  2. While the DUT is booting, hold the BIOS_SETUP_KEY to enter the UEFI Setup Menu.
  3. Enter the Dasharo System Features menu using the arrow keys and Enter.
  4. Enter the Power Management Options submenu.
  5. Verify that the Fan profile field is set to Silent - if not, using the arrow keys and Enter, choose the Silent option.
  6. Press F10 to save the changes.
  7. If necessary - press Y to confirm saving the changes.
  8. Go back to the main menu using the ESC key.
  9. Select the Reset option to apply the settings and reboot.
  10. Boot into the system.
  11. Log into the system by using the proper login and password.

  12. Open the terminal window and run the following command:

    stress-ng --cpu $(nproc --all) --cpu-load 100 --timeout 1m

  13. Make a couple of measurements of the temperature and fan speeds in a device specific way. The --cpu-load parameter specifies the approximate percentage usage of the cpu. Change it to values in range [1, 100] to measure the fan speeds in all the working points of the fan curve.

  14. Note the results.

Expected result The values of CPU temperature and fan speeds should match the device specific instructions on verifying the Silent fan curve.

CFC002.001 Custom fan curve performance profile measure (Ubuntu)

Test description

This test aims to verify that the fan curve is configured correctly in the performance profile and the fan spins up and down according to the defined values.

Test configuration data

  1. FIRMWARE = Dasharo

Test setup

  1. Proceed with the Test cases common documentation section.
  2. Install stress-ng on the DUT.

Test steps

  1. Power on the DUT.
  2. While the DUT is booting, hold the BIOS_SETUP_KEY to enter the UEFI Setup Menu.
  3. Enter the Dasharo System Features menu using the arrow keys and Enter.
  4. Enter the Power Management Options submenu.
  5. Verify that the Fan profile field is set to Performance - if not, using the arrow keys and Enter, choose the Performance option.
  6. Press F10 to save the changes.
  7. If necessary - press Y to confirm saving the changes.
  8. Go back to the main menu using the ESC key.
  9. Select the Reset option to apply the settings and reboot.
  10. Boot into the system.
  11. Log into the system by using the proper login and password.

  12. Open the terminal window and run the following command:

    stress-ng --cpu $(nproc --all) --cpu-load 100 --timeout 1m

  13. Make a couple of measurements of the temperature and fan speeds in a device specific way. The --cpu-load parameter specifies the approximate percentage usage of the cpu. Change it to values in range [1, 100] to measure the fan speeds in all the working points of the fan curve.

  14. Note the results.

Expected result The values of CPU temperature and fan speeds should match the device specific instructions on verifying the Performance fan curve.

CFC003.001 Custom fan curve OFF profile measure (Ubuntu)

Test description

This test aims to verify that the fan curve is configured correctly in the OFF profile and the fan does not spin, or barely spins, which depends on the type of the fan.

Test configuration data

  1. FIRMWARE = Dasharo

Test setup

  1. Proceed with the Test cases common documentation section.
  2. Install stress-ng on the DUT.
  3. Install lm-sensors on the DUT

Test steps

  1. Power on the DUT.
  2. While the DUT is booting, hold the BIOS_SETUP_KEY to enter the UEFI Setup Menu.
  3. Enter the Dasharo System Features menu using the arrow keys and Enter.
  4. Enter the Power Management Options submenu.
  5. Verify that the Fan profile field is set to Off - if not, using the arrow keys and Enter, choose the Off option.
  6. Press F10 to save the changes.
  7. If necessary - press Y to confirm saving the changes.
  8. Go back to the main menu using the ESC key.
  9. Select the Reset option to apply the settings and reboot.
  10. Boot into the system.
  11. Log into the system by using the proper login and password.

  12. Open the terminal window and run the following command:

    stress-ng --cpu $(nproc --all) --cpu-load 100 --timeout 1m

  13. Make a couple of measurements of the temperature and fan speeds in a device specific way. The --cpu-load parameter specifies the approximate percentage usage of the cpu. Change it to values in range [1, 100] to measure the fan speeds in all the working points of the fan curve.

  14. Note the results.

Expected result The values of CPU temperature and fan speeds should match the device specific instructions on verifying the Off fan curve.

Measuring the temperature and fan speeds

  1. Run the following command to load the kernel module required for measuring the fan RPM 
    sudo modprobe it87 force_id=0x8786
  2. Run the following command to detect available sensors 
    sudo sensors-detect
  3. Run the following command to read the temperature and RPM 
    watch -n1 "sensors it8786-isa-* | grep -E 'fan|temp1'"

Verifying the temperature and fan speeds

The fans have a minimal RPM of ~200 RPM, and a maximum of up to ~3200 RPM. When in off state they still spin at ~200 RPM.

The fans:

  • start spinning up from the minimal RPM at 50 degrees and slow down to the minimal RPM at 40 degrees (hysteresis)
  • spin up proportionally to the CPU temperature, reaching the maximum RPM at 85 degrees

{ "$schema": "https://vega.github.io/schema/vega-lite/v5.json", "title": "The \"Silent\" fan curve for Protectli VP66xx", "data": { "values": [ {"t1": 0, "r": 200, "h": 0}, {"t1": 40, "r": 200, "h": 0}, {"t1": 85, "r": 3200, "h": 0}, {"t1": 100, "r": 3200, "h": 0}, {"t1": 0, "r": 200, "h": 1}, {"t1": 50, "r": 200, "h": 1}, {"t1": 85, "r": 3200, "h": 1}, {"t1": 100, "r": 3200, "h": 1} ] }, "mark": {"type": "line", "tooltip": true}, "encoding": { "x": {"field": "t1", "type": "quantitative", "title": "CPU Temperature [°C]"}, "y": {"field": "r", "type": "quantitative", "title": "Fan speed [RPM]"}, "color": {"field": "h", "type": "nominal", "legend": null} } }

The fans:

  • start spinning up from the minimal RPM at 40 degrees and slow down to the minimal RPM at 30 degrees (hysteresis)
  • spin up proportionally to the CPU temperature, reaching the maximum RPM at 75 degrees

{ "$schema": "https://vega.github.io/schema/vega-lite/v5.json", "title": "The \"Performance\" fan curve for Protectli VP66xx", "data": { "values": [ {"t1": 0, "r": 200, "h": 0}, {"t1": 30, "r": 200, "h": 0}, {"t1": 75, "r": 3200, "h": 0}, {"t1": 100, "r": 3200, "h": 0}, {"t1": 0, "r": 200, "h": 1}, {"t1": 40, "r": 200, "h": 1}, {"t1": 75, "r": 3200, "h": 1}, {"t1": 100, "r": 3200, "h": 1} ] }, "mark": {"type": "line", "tooltip": true}, "encoding": { "x": {"field": "t1", "type": "quantitative", "title": "CPU Temperature [°C]"}, "y": {"field": "r", "type": "quantitative", "title": "Fan speed [RPM]"}, "color": {"field": "h", "type": "nominal", "legend": null} } }

The fan RPM value should be constant and oscillate around the minimum of ~200 RPM regardless of the CPU temperature.

{ "$schema": "https://vega.github.io/schema/vega-lite/v5.json", "title": "The \"Off\" fan curve for Protectli VP66xx", "data": { "values": [ {"t1": 0, "r": 200, "h": 0}, {"t1": 100, "r": 200, "h": 0} ] }, "mark": {"type": "line", "tooltip": true}, "encoding": { "x": {"field": "t1", "type": "quantitative", "title": "CPU Temperature [°C]"}, "y": { "field": "r", "type": "quantitative", "title": "Fan speed [RPM]", "scale": {"domain": [0, 300]} }, "color": {"field": "h", "type": "nominal", "legend": null} } }

The fan from the modular extension bay have a minimal RPM of 0 RPM, and a maximum up to ~2100 RPM. When in off state they stop spinning and remain at constant 0 RPM.

The fans:

  • start spinning at 50 degrees and stop spinning at 40 degrees (hysteresis)
  • spin up proportionally to the CPU temperature, reaching the maximum RPM at 85 degrees

{ "$schema": "https://vega.github.io/schema/vega-lite/v5.json", "title": "The \"Silent\" fan curve for Protectli VP66xx", "data": { "values": [ {"t1": 0, "r": 0, "h": 0}, {"t1": 40, "r": 0, "h": 0}, {"t1": 85, "r": 2100, "h": 0}, {"t1": 100, "r": 2100, "h": 0}, {"t1": 0, "r": 0, "h": 1}, {"t1": 50, "r": 0, "h": 1}, {"t1": 85, "r": 2100, "h": 1}, {"t1": 100, "r": 2100, "h": 1} ] }, "mark": {"type": "line", "tooltip": true}, "encoding": { "x": {"field": "t1", "type": "quantitative", "title": "CPU Temperature [°C]"}, "y": { "field": "r", "type": "quantitative", "title": "Fan speed [RPM]", "scale": {"domain": [-100, 2200]} }, "color": {"field": "h", "type": "nominal", "legend": null} } }

The fans:

  • start spinning at 40 degrees and stop spinning at 30 degrees (hysteresis)
  • spin up proportionally to the CPU temperature, reaching the maximum RPM at 75 degrees

{ "$schema": "https://vega.github.io/schema/vega-lite/v5.json", "title": "The \"Performance\" fan curve for Protectli VP66xx", "data": { "values": [ {"t1": 0, "r": 0, "h": 0}, {"t1": 30, "r": 0, "h": 0}, {"t1": 75, "r": 2100, "h": 0}, {"t1": 100, "r": 2100, "h": 0}, {"t1": 0, "r": 0, "h": 1}, {"t1": 40, "r": 0, "h": 1}, {"t1": 75, "r": 2100, "h": 1}, {"t1": 100, "r": 2100, "h": 1} ] }, "mark": {"type": "line", "tooltip": true}, "encoding": { "x": {"field": "t1", "type": "quantitative", "title": "CPU Temperature [°C]"}, "y": { "field": "r", "type": "quantitative", "title": "Fan speed [RPM]", "scale": {"domain": [-100, 2200]} }, "color": {"field": "h", "type": "nominal", "legend": null} } }

The fan RPM value should be constant at the minimum of 0 RPM regardless of the CPU temperature.

{ "$schema": "https://vega.github.io/schema/vega-lite/v5.json", "title": "The \"Off\" fan curve for Protectli VP66xx", "data": { "values": [ {"t1": 0, "r": 0, "h": 0}, {"t1": 100, "r": 0, "h": 0} ] }, "mark": {"type": "line", "tooltip": true}, "encoding": { "x": {"field": "t1", "type": "quantitative", "title": "CPU Temperature [°C]"}, "y": { "field": "r", "type": "quantitative", "title": "Fan speed [RPM]", "scale": {"domain": [-100, 100]} }, "color": {"field": "h", "type": "nominal", "legend": null} } }