Undervolting Your PC to Achieve Better Power Consumption & Temperatures NCIX Tech Tips



How to Underclock a PC

PCs are under-clocked for considerably longer hardware lifespan, reduced heat generation (and hence dissipation), reduced electrical power consumption, increased stability and reduced noise from mechanical cooling parts.

Steps

  1. Access the computer's BIOS settings page (BIOS stands for "Basic Input Output System").Depending on brand of computer, this requires pressing keys during a certain time of the boot process. Some manufacturers require pressing "Delete" "F2" or <alt>+ or other key combination while the system goes through POST (Power On Self Test) or displays a logo on the screen.
  2. Locate "Frequency/Voltage Control" settings.BIOS screens generally consist of several pages of settings. Each page relates directly to certain parts of the computer operation. Use the "PgDn" and "PgUp" or "<-" and "->" arrow keys to navigate to the page that allows for adjustment of the above variables.
  3. Scroll down to the "Frequency/Voltage Control." Press "Enter" or use the left and right arrow keys to select the value. Use the arrow keys, + and - keys or other combination to adjust the value lower.
  4. Lower the CPU "clock speed".Lower these values similar to the way described above (if you can't it is because it is locked).
  5. Lower the Front Side Bus (FSB) Frequency).Lower these values similar to the way described above.
  6. Lower the core voltage (vCore).Lower these values similar to the way described above (don't lower it too much).
  7. When complete, be sure to save the settings before exiting, otherwise the old settings will remain in place.If you think you've made a mistake, press the "Esc" key to exit without saving. Note: Not all computer BIOS have "Frequency/Voltage Control" settings, maybe lock by Manufacturers.

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  • Locate or download and print a copy of the system board or computer manual's BIOS section. The exact BIOS access method will be described here, along with additional information on this subject and the other values in the BIOS pages.
  • If you are unable to boot because of wrong values, reset the BIOS to "default" This can be accomplished by removing BIOS battery for ten minutes or so before replacing, or inserting or removing a jumper on pins on the system board, or other method described in the manual and powering on the system.

Warnings

  • Underclockingreducesoverall performance.
  • Do not enter a Password for the BIOS screen that you can not remember. A full BIOS reset may be required to clear the password. The manual may explain methods to clear forgotten passwords if this happens.
  • Underclockingvoidsthe system warranty on most computers, depending on the manufacturer.





Video: I Underclocked My 5820K to 1.2GHz. This is What Happened:

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Date: 15.12.2018, 08:21 / Views: 75584