Ethereum: clDevicesNum returned error, no GPUs usable

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Ethereum Mining Error: Error returned “clDevicesNum”, GPU not usable

As an Ethereum miner, you are probably familiar with the world of cryptocurrency mining. However, when trying to start or optimize your mining setup, you may encounter errors related to clDevicesNum and FT232R scanning issues. In this article, we will look at what these errors mean and provide guidance on how to resolve them.

Error 1: Error returned “clDevicesNum”

The error returned “clDevicesNum” usually occurs when the miner’s system cannot find the hardware required to mine Ethereum. This is often caused by outdated or incompatible device drivers, as well as issues with the FT232R scanning process. To resolve this error, follow these steps:

• Update Device Drivers: Make sure your device drivers are up to date. You can check for updates in Device Manager (Windows) or System Information (Mac). For Windows:

• Right-click “This PC” or “Computer” and select “Properties”.

• Click “Device Manager” and expand the sections.

• Disable and re-enable FT232R: Sometimes disabling and re-enabling the FT232R port can resolve issues with clDevicesNum. To do this, follow these steps:

a. Open your operating system’s Control Panel (Windows) or System Preferences (Mac).

b. Click “FT232R” and make sure it is enabled.

c. Close Control Panel and restart your computer.

Error 2: “ft232r_scan” issues

When scanning for FT232R devices, some miners may encounter issues with the “ft232r_scan” process. This can lead to the errors mentioned earlier:

• Check FT232R compatibility: Make sure your miner is compatible with the FT232R protocol and that all required software components are up to date.

• Check device permissions: Make sure that the device permissions are set correctly, especially for the “ft232r_scan” process.

To resolve these issues, try the following:

a. Check online forums or documentation for your miner model and FT232R version.

b. Update your miner firmware to ensure compatibility with the latest protocol versions.

c. Verify that device permissions are set correctly and adjust as needed.

Ethereum Mining Best Practices

To troubleshoot and optimize your mining setup, keep the following in mind:

• Check System Requirements: Make sure your computer meets the minimum requirements to run a Bitcoin or Ethereum miner.

• Monitor Resource Usage: Keep an eye on your system’s resource usage to prevent overheating and ensure optimal performance.

• Regular Maintenance

  

  : Regularly update device drivers, disable and re-enable FT232R ports as needed, and perform other maintenance tasks to keep your system healthy.

If you follow these steps and best practices, you should be able to resolve the “clDevicesNum” error and set up your Ethereum mining settings smoothly.