Antminer S21 – Hashboard Not Detected
hashboard not found
Critical — Immediate action required
Symptoms
- One hashboard shows 0 chips
- Reduced total hashrate
- Dashboard shows missing chain
Step-by-Step Fix
Power off and reseat hashboard data/ribbon cables.
Check power cable connections to the hashboard.
Try the hashboard in a different slot.
Inspect for visible burn marks or damaged components.
If still not detected, professional repair is required.
When to Seek Professional Repair
If the steps above do not resolve the issue, or if you are not comfortable performing these repairs yourself, professional service is recommended. Attempting advanced repairs without proper equipment can cause further damage.
Related Error Codes
Still Having Issues?
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