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  • 1. How to access E300 WebUI?
    Step 1: Obtain your E300’s IP address by logging into your network router and reviewing the DHCP leases for a device named ARM or installing an IP scanner tool at: ( Step 2: Once you have the E300’s IP address, open a web browser ( Chrome or Firefox are reommended) and insert this link in the address bar: http://E300_ip_address/ , login window pop up will show up. Use the following credentials to log in: User name: root Password: password
  • 2. How to mine Kaspa?
    Step 1: Set vccINT to 635mv (please refer to 3 for how to change vccINT) Step 2: Goto “Miner” webpage Step 3: Fill in your mining pool, kaspa wallet, workerID, coreclock… Step 4: Running miner by click the “start” button Note: raising FPGA core clock help to increase hashrate, and need a higher vccInt value (please refer to 3 for how to change vccINT)
  • 3. How to set vccint voltage. (it may show “Unrecognized comm data, skipping” issue if vccint too high when mine kaspa
    Step 1: Stop mining tool (from “Miner” webpage) Step 2: Tweak vccInt value Please refer to the below table:
  • 4. How to solve the high error issue?
    The high error issue is relating to voltage. To solve it, we just need to increase several mV vccInt
  • 5. Is there any way to monitor streaming log without login?
    Yes, You monitor the streaming log by access. http://YOUR_E300_IP_ADDRESS:9001/?filter=start
  • 6. What is the normal temperature while mining Kaspa?
    The normal chip temperature ranges from 50°C ~ 60 °C in the winter, and 60°C ~ 70°C in the summer.
  • 7. How often should you clean the E300 miners?
    It is recommended that Ospreyers should clean hashing boards to remove dust and external objects every three (03) months. This task is not time-consuming and helps your boards work more reliable and long-lasting.
  • 8. Is there any hard reset button on E300 miner?
    Yes, the E300 miner supported two (02) reset button. S2 button: Hold the S2 button for over 5 seconds to reset factory network configurations S3 button: Hold the S3 button for over 5 seconds to reset factory FPGA (hashing boards) configurations
  • 9. How to troubleshoot the continuous rebooting issue?
    Step 1: ssh into E300 box ; user name: ubuntu ; password: temppwd Step 2: Run two command lines below
  • 10. How can you contact us for support?
    Join our discord at
  • 11. My Auto Update Firmware was enabled, but my E300/E100 is still not updating. What should I try to do to update?
    It might be a network issue. You can make manual update by Step1: Login webgui and goto "update firmware" webpage to disable OTA update Step 2: download firmware ( DON'T NEED TO UNTAR) Step3: goto "update firmware" webpage and make manual update Step4: waiting about 5 minutes, and check firmware version again to.make sure loaded firmware successfully Version: N1.0.18 step5: clear web-browser cookies
  • 12. How can I reset my web password for E300?
    To reset factory (including log in password), please push the "Reload" button over 5 second
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