I am sure what you want is possible, but more details will be needed.
What is your datasource? (Prometheus, Postgres, InfluxDB, Elasticsearch, Graphite, etc.)
Are you currently using any agent (Telegraf, Grafana Agent, etc.) or other method to scrape your CPU, ram, etc.
What is the OS on the computer being scraped? (Ubuntu, Windows, Raspberry Pi)? Or do you have a whole bank of computers that you want to scrape? Or are you wanting to scrape the computer where Grafana is currently running?
Which version of Grafana are you using? (please also specify cloud or OSS)