Windows & NVIDIA DPC Latency Issues: Troubleshooting Steps

General Steps:

1. Disable Power Saving Features

• Disable all power-saving features in BIOS/UEFI settings.
• Set a high-performance power plan in Windows:

  Right-click on 'Power' icon in taskbar > 'Choose what the power button does' > 'Change settings that are currently unavailable'
  

  Select High performance and click OK.

2. Adjust Processor Idle Settings

• Download PowerSettingsExplorer: https://www.nirsoft.net/utils/power_settings_explorer.html
• Run as administrator:

  Right-click on 'PowerSettingsExplorer.exe' > 'Run as administrator'
  

• Uncheck Processor Idle Demote Threshold and Processor Idle Promote Threshold.
• Set both options to 100% in power plan settings:

  Right-click on 'Power' icon in taskbar > Select your active power plan (e.g., High performance) > 'Change advanced power settings'
  

3. Use MSI Utility v3

• Download MSI Utility v3: https://www.msi.com/Landing/uti/download/
• Run as administrator:

  Right-click on 'MSI Afterburner' > 'Run as administrator'
  

• Set GPU to MSI Mode and priority to High.
• Restart your computer and test for improved performance.

4. Uninstall Windows Update Health Tools

• Open Command Prompt as administrator:

  Right-click on 'Start' > 'Command Prompt (Admin)' or 'Windows PowerShell (Admin)'
  

• Type the following command and press Enter:

  dism /online /norestart /cleanup-image /startcomponentcleanup
  

5. Disable USB Selective Suspend

• Disable USB selective suspend in your power plan settings:

  Right-click on 'Power' icon in taskbar > Select your active power plan (e.g., High performance) > 'Change advanced power settings'
  

  Expand USB Settings, double-click USB selective suspend setting, and select Disabled. Click OK.

6. Update Motherboard Chipset Drivers

• Visit your motherboard manufacturer's website to download the latest chipset drivers.
• Install the downloaded drivers:

  Double-click on '.exe' driver file > Follow installation instructions