The CPU Fan Speed RPM (Revolutions Per Minute) Calculator is a tool designed to measure the rotational speed of a CPU fan. This calculation helps users understand the fan's performance, ensuring that the cooling system is functioning effectively. Proper fan speed is crucial to maintaining optimal CPU temperatures and preventing overheating.
By using this calculator, users can accurately determine their CPU fan’s RPM based on electrical pulse data, aiding in troubleshooting, performance optimization, and system maintenance.
Formula of Cpu Fan Speed Rpm Calculator
To calculate the CPU fan speed in RPM, use the following formula:
RPM = (Pulses Per Second × 60) / Pulses Per Revolution
Where:
- Pulses Per Second (PPS) is the number of electrical pulses generated by the fan’s tachometer output per second.
- Pulses Per Revolution (PPR) is the number of pulses generated per complete revolution of the fan.
This formula converts the pulse data into RPM, giving a precise measurement of the fan’s speed.
General Terms Table
Here is a reference table for common fan speed scenarios based on different PPS and PPR values:
| Pulses Per Second (PPS) | Pulses Per Revolution (PPR) | Fan Speed (RPM) |
|---|---|---|
| 200 | 2 | 6,000 |
| 300 | 2 | 9,000 |
| 400 | 2 | 12,000 |
| 500 | 4 | 7,500 |
| 600 | 4 | 9,000 |
This table allows users to quickly estimate their fan’s RPM based on standard pulse readings.
Example of Cpu Fan Speed Rpm Calculator
Let’s calculate the RPM for a fan generating 250 pulses per second with 2 pulses per revolution.
Using the formula:
RPM = (250 × 60) / 2
RPM = 15,000 / 2 = 7,500
This means the fan is running at a speed of 7,500 RPM.
Most Common FAQs
CPU fan speed is crucial for maintaining proper CPU temperatures. High or low fan speeds can indicate cooling issues that may lead to performance degradation or hardware damage.
You can measure these values using fan tachometers or monitoring software that interfaces with your system’s BIOS or fan controller.
Irregular fan speeds can result from dust accumulation, faulty bearings, incorrect BIOS settings, or power supply issues. Regular maintenance and monitoring can help prevent such problems.