A lightweight PowerShell script that logs CPU temperature, power draw, per-core temperatures, and the top CPU-using processes to a CSV file. Works on both AMD and Intel CPUs.

• Downloads the latest LibreHardwareMonitor library automatically on first run
• Logs CPU package temperature and individual core temperatures
• Logs CPU package power (watts)
• Captures the top five processes by PerfMon CPU% each sample (raw plus approx. share of PC = raw ÷ logical CPUs)
• Plain CSV output — easy to chart in Excel or Power BI
• No separate installer beyond PowerShell + admin rights

• Windows PowerShell or PowerShell 7
• Run as Administrator (required by the script and performance counters)

1. Save HeatPulse.ps1 to a folder on your PC.
2. Open an elevated terminal and follow Running from PowerShell below.

1. Press Win + X.
2. Choose Terminal (Admin) or Windows PowerShell (Admin).

cd "C:\path\to\HeatPulse"

Replace C:\path\to\HeatPulse with the folder where you saved HeatPulse.ps1.

Set-ExecutionPolicy RemoteSigned -Scope CurrentUser

.\HeatPulse.ps1

You should see:

Monitoring started. Live summary refreshes every 5s. Press Ctrl+C to stop.

Press Ctrl+C to exit cleanly; the CSV path is printed when you stop.

Open HeatPulse_Log_<timestamp>.csv (a new file each run) in Excel or Power BI to build charts.

Per-process figures come from Windows performance counters (Win32_PerfFormattedData_PerfProc_Process / PerfMon-style % Processor Time), not from Task Manager’s UI code.

• PerfMon raw can go above 100% on multi-core CPUs (a threaded process sums time across logical processors). Theoretical ceiling scales with logical CPU count.
• Approx. % of PC (also written ~pc in the dashboard) is raw ÷ Logical_CPU_Count. That is an approximate “share of the whole machine” comparable to how many people read Task Manager — but still not identical, because Task Manager smooths differently and refreshes on its own cadence.
• Samples are taken every 5 seconds at one instant, so brief spikes may look bigger here than Task Manager’s averaged column.

• First run downloads the LibreHardwareMonitor assets (~ few MB); later runs reuse the DLL.
• Administrator rights are required.
• Always use Ctrl+C to stop so the loop can tear down cleanly and finalize the CSV.