BM1485 Brand New ASIC Chip for Antminer L3 L3+ L3++ Hashboard
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BM1485 ASIC Chip for Antminer L3 / L3+ / L3++ Hashboard Repair
The BM1485 is the Scrypt (Litecoin / Dogecoin) ASIC chip used across Bitmain's Antminer L3, L3+, L3++ hashboards. A dead or cracked BM1485 is the single most common cause of a missing hash engine, a low chip-count scan, or a chain stuck at lower-than-expected hashrate. This brand-new, original SMD replacement restores full chip count on the repaired chain and returns the miner to its rated hashrate without any firmware change.
Typical Use in L3 / L3+ / L3++ Hashboard Repair
- Chain error recovery — replacing failed chips that knock the chain offline.
- Hashrate restoration — recovering lost MH/s on partially-functional boards.
- Domain recovery — restoring missing voltage domains caused by single failed chip in series.
- Production refurbishment — bulk BM1485 stock for L3 family rework lines.
- End-of-life sustainment — keeping L3 / L3+ / L3++ fleets productive past warranty.
BM1485 Specifications
| Feature | Specification |
|---|---|
| Part Number | BM1485 |
| Manufacturer | Bitmain (original) |
| Algorithm | Scrypt (Litecoin / Dogecoin) |
| Mounting Type | SMD |
| Compatible Miners | Antminer L3 / L3+ / L3++ |
| Use Case | Hashboard chip-level replacement |
| Lead Time | 3 days (in stock) |
| Condition | Brand New |
FAQ — BM1485 ASIC Chip
Q: How many BM1485 chips per L3+ hashboard?
A: Each L3+ hashboard typically carries 72 BM1485 chips arranged across multiple power domains. Use a chip-scan test fixture to identify the specific failed positions before ordering replacement quantities.
Q: BM1485 vs BM1489 — different generations?
A: Yes. BM1485 is the older generation chip for L3 / L3+ / L3++. BM1489 is the newer chip used on Antminer L7. Different miners, different chip families. Verify your miner model before ordering.
Q: Do I need firmware flash after replacement?
A: No — BM1485 is a drop-in hashing ASIC with no on-chip firmware. After hot-air rework / reflow, the chip joins the chain automatically. Run a chip scan to verify the new device registers properly.
Q: Bulk pricing for L3 repair shops?
A: Yes — email contact@lys-sz.com with your monthly L3 board rework volume for tier pricing on BM1485 stock by the reel.
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L3 / L3+ repair shops stocking BM1485 by the reel? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouses.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
