dashboard:

Open your web browser and go to: http://localhost:3000/dashboards
Click on "Import" (the plus icon in the sidebar)
Enter the dashboard ID: 1860 (Node Exporter Full)
Click "Load"
Select "Prometheus" as the data source
Click "Import"
If you still don't see any data, try these steps:

Click on the dashboard settings (gear icon)
Go to "Variables"
Ensure the "job" variable is set to "node-exporter"
Save the dashboard
The CPU and memory usage should now be visible. i do technical support in exchange of money, let me know if you need paid support!