End of Support Notice
Razer Synapse 3: Updates and cloud services are no longer supported, effective February 3, 2026.
Razer Synapse 2.0: Cloud‑related features are no longer supported, effective October 28, 2025.
For more details, including a guide on how to migrate profiles, visit the links below.
Certain Razer Blade models have the option to control fan speed through Razer Synapse. Note that a lower fan speed results in higher temperatures.
Below is the list of Razer Blade models with fan speed control options and the corresponding version of Razer Synapse.
List of Razer Blades with fan control via Razer Synapse
See instructions below
How to set the fan speed in Razer Synapse 4
Note: In Razer Synapse 4, you have the option to manually control the Razer Blade's fan speed in both "Balanced Mode" and "Gaming Mode".
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Open Razer Synapse 4.
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Go to "PERFORMANCE".
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Select your preferred fan speed option under “FAN CONTROL”.
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Adjust the fan speed with automatic or fixed settings, or you can also choose to customize it manually.
Note: The Manual Fan Curve feature is available for the 2025 Razer Blade models onwards.
Here are some additional notes when adjusting the fan speed in Razer Synapse 4:
- The speed you select will be constantly maintained and no longer be adjusted by the system.
- Selecting a constant fan speed may result in increased fan noise from your system.
- These settings will be stored and saved as long as Razer Synapse 4 is running.
You have successfully adjusted the fan speed on your Razer Blade via Razer Synapse 4.
How to set the fan speed in Razer Synapse 3
Note: In Razer Synapse 3, you have the option to manually control the Razer Blade's fan speed in both "Balanced Mode" and "Gaming Mode".
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Open Razer Synapse 3.
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Go to "SYSTEM" > "PERFORMANCE".
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Select "Manual" as the fan speed option.
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Click and move the node to your preferred fan speed.
Here are some additional notes when adjusting the fan speed in Razer Synapse 3:
- The speed you select will be constantly maintained and no longer be adjusted by the system.
- Selecting a constant fan speed may result in increased fan noise from your system.
- These settings will be stored and saved as long as Razer Synapse 3 is running.
You have successfully adjusted the fan speed on your Razer Blade via Razer Synapse 3.
How to set the fan speed in Razer Synapse 2.0
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Open Razer Synapse 2.0.
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Go to "SYSTEM" > "POWER".
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Select your preferred fan speed.
You have successfully adjusted the fan speed on your Razer Blade via Razer Synapse 2.0.
