Antminer S21 Pro Repair in Ukraine — Hashboards, BM1370, PSU
Specifications
Алгоритм
SHA-256
Хешрейт
234 TH/s
Чіп
BM1370 (5 нм)
Споживання
3510 Вт
Ефективність
15 J/TH
Розміри
213 × 297 × 388 мм
Вага
15 кг
Рівень шуму
75 дБ
About this model
The Antminer S21 Pro is the top air-cooled model in Bitmain's S21 series. At 234 TH/s and just 3510W, it achieves 15 J/TH efficiency — among the best for air-cooled SHA-256 miners. The BM1370 chip (5nm) runs at optimized frequencies with an improved thermal envelope.
High performance means higher demands on power quality and cooling. We repair the S21 Pro at the component level: BM1370 chip replacement, hashboard trace restoration, VRM regulator repair, control board reflashing, and PSU repair of any complexity.
If your S21 Pro isn't reaching full capacity — bring it in for diagnostics. We'll restore factory specifications with a warranty.
Common issues
Hashrate doesn't reach factory 234 TH/s — individual BM1370 chip degradation or calibration issues
Emergency shutdown under full load — PSU can't handle peak consumption
Elevated temperature on one board — poor thermal contact between chip and heatsink
"Fan speed abnormal" error — faulty fan or RPM sensor malfunction
Control board doesn't save pool configuration — NAND memory damage
How repair works
Drop off
Bring it in or ship via Nova Poshta. We accept equipment daily 10:00–20:00.
Diagnostics
Free diagnostics within 1–2 days. We'll quote the exact repair cost.
Repair
We repair using original parts and stress-test under load before completion.
Pick up
Pick up your equipment or we ship it back. Up to 30-day warranty included.