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Troubleshooting the iBeLink DM22G Blade
11/18/2017 Rev1.1 Fixed steps for Section I.
This guide will help you to troubleshoot and fix some common issues that can occur on the
iBeLink DM22G Blades. The three most common issues that can occur are the following: Blade
not being detected, not detecting all chips on a Blade, and displaying a high H/W reading.
I.
Blade not Detected
The first thing to check is for a conductivity issue.
1. Remove the black and steel metal bar that is across the top of the blades. They are
held in place by 6 screws. See picture below.
2. Remove the 4 screws attaching the Blade to the case.
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Summary of Contents for iBeLink DM22G Blade
- Page 1 This guide will help you to troubleshoot and fix some common issues that can occur on the iBeLink DM22G Blades. The three most common issues that can occur are the following: Blade not being detected, not detecting all chips on a Blade, and displaying a high H/W reading.
- Page 2 3. Slightly lift the blade up away from the case. 4. If the Blade is now detected, the issue is caused by conductivity and can be fixed by following the Fixing Blade Conductivity Issue section further below. If the Blade is still not detected, it could still be a conductivity issue so follow the Fixing Blade Conductivity Issue guide and test again.
- Page 3 2. Check the hashing boards: Check the status of the hashing boards by following the iBeLink DM22G Hashing Board Test Guide section located further below. 3. Depending on your test results, you will need to request a RMA for the panel board, hashing board(s), or both through the ticket system.
- Page 4 Find the hashing board(s) that contains the chip(s) you found in Step 4. Each hashing board contains 6 chips, and the hashing board order starts from the left side of the Blade. See picture below. For example, chips 8, 9 and 22 are reporting high H/W.
- Page 5 Remove the hashing board(s) and note its number. You will need to request a RMA for the bad hashing board(s) through the ticket system. IV. iBeLink DM22G Hashing Board Test Guide There are 2 methods to test the DM22G hashing boards: testing in a browser environment and testing in a command line terminal.
- Page 6 2. Connect the hardware together. First, connect the test board to the PI controller. Using the data cable, connect one end to the connector port on the PI controller board labeled NO.1 JP4. Connect the other end to the connector port on the back of the test board labeled J1.
- Page 7 of the hashing board you are testing. Be sure the pins are connected correctly and not reversed. (See Pic. 5) Pic. 4: Panel board removed to expose hashing boards’ connectors Pic. 5: Test board connected to hashing board. B. Testing in the Browser Environment 1.
- Page 8 2. Enter the IP address you obtained in Step 1 into the URL address box. It is recommended you use Firefox or Chrome. Pic. 6: Web management page of the test system. 3. Click the “Single Test” to enter the test page. Pic.
- Page 9 Pic. 8: The “Key” (S1 button) on the test board. Pic. 9: Test is running. In the event the “Key” is not pressed or there is something wrong with the setup, you will get a prompt as shown in Pic. 10. To run the test again, just click “Start Test”.
- Page 10 Pic. 11: Hashing board has no issues. Pic. 12: Problem detected on the hashing board. 6. At this point, you can run the test again on the same hashing board or connect the test board into a different hashing board for testing. C.
- Page 11 Pic. 13: Error message when problem detected on hashing board. Pic. 14: Passing test message when no problems are detected. Fixing Blade Conductivity Issue 1. Remove all the screws from the hashing board and panel board. Separate the hashing boards and panel board from the heat sink.
- Page 13 2. Wipe away 1~2mm of thermal paste from both sides of the heat sink, and wipe away 15mm of thermal paste from the top (Note: Align using the mounting base as the bottom).
- Page 15 3. File the 3 edges (both sides and top) to smooth out any burrs or rough spots.
- Page 18 4. At the top of the heat sink, attach a 15mm wide high temperature insulation tape.
- Page 19 5. Reassemble the blade using the heat sink, hashing boards and panel board.
- Page 20 Note: At this time do not put the screws back next to the connectors.
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