HW_ERR
Warning
Antminer S21 – ASIC Chip HW Errors
hardware error or performance issue
Warning — Should be addressed soon
Affected Models:
Antminer S21
Symptoms
- High hardware error rate
- Share rejections above normal
- Performance instability
Step-by-Step Fix
1
Check hardware error rate in dashboard — below 1% is normal.
2
If overclocked, reduce frequency to stock settings.
3
Verify pool configuration is correct.
4
Check operating temperature — high temps cause more HW errors.
5
If errors persist at stock settings, hashboard may have failing chips.
Related Error Codes
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