Description
BM1366BS ASIC Chip — S19k Pro’s 5nm Workhorse
The Bm1366bs asic chip antminer s19k pro is a reliable choice for Bitcoin mining operations.
The BM1366BS is Bitmain’s 5nm SHA-256 ASIC chip — the specific variant engineered for the Antminer S19k Pro. If your S19k Pro hashboard is down, this is the chip that brings it back. If you’re building a Bitaxe Ultra open-source solo miner, this is the silicon that powers it. Sourced from brand-new equipment by D-Central’s technicians — not pulled from worn-out machines — because silicon quality matters when you’re repairing a hashboard or building something that needs to run 24/7.
The BM1366 family was Bitmain’s generational leap to 5nm process technology, setting the efficiency standard for SHA-256 mining. The BS variant is specifically binned and packaged for S19k Pro hashboards. Same architecture, same efficiency class, purpose-built for one of the most deployed miners in its generation.
Technical Specifications
| Spec | Detail |
|---|---|
| Chip Model | BM1366BS |
| Manufacturer | Bitmain |
| Process Node | 5nm |
| Algorithm | SHA-256 (Bitcoin) |
| Chip Family | BM1366 |
| Primary Application | Antminer S19k Pro hashboard replacement |
| Secondary Application | Bitaxe Ultra open-source miner builds |
| Sourcing | Extracted from brand-new equipment |
| Quantity | 1x ASIC chip |
Dual Use: Repair and Build
ASIC Repair — Antminer S19k Pro
One dead chip in a hash chain takes the whole chain down. The S19k Pro is a workhorse machine, but when a BM1366BS fails on the hashboard, you lose real hashrate and real revenue. These chips are sourced from brand-new equipment — fresh silicon that hasn’t been through thousands of hours of thermal cycling in a mining facility. Replace the failed chip, reflow, and your S19k Pro is back to pulling its weight.
If chip-level repair isn’t your thing, D-Central’s ASIC Repair service handles it professionally. We’ve repaired thousands of miners since 2016 and maintain dedicated repair documentation for 38+ ASIC models, including the S19k Pro. Ship us your hashboard — we diagnose, replace, test, and return it hashing.
Bitaxe Ultra Builds — Open-Source Solo Mining
Building a Bitaxe Ultra? The BM1366BS is a compatible chip for the build. The Bitaxe Ultra runs on BM1366-family silicon, and the BS variant works as a direct drop-in. One chip, one open-source board, solo mining Bitcoin without a pool, without permission, without a middleman. The 5nm process keeps power consumption minimal while your Bitaxe fires SHA-256 hashes at the network around the clock. Every hash counts.
D-Central is a pioneer in the Bitaxe ecosystem. We created the original Bitaxe Mesh Stand, developed leading heatsink and accessory solutions, and stock every Bitaxe variant on the market. When you buy BM1366 chips from us, you’re buying from a team that builds with this silicon, repairs with this silicon, and knows exactly what it can do.
BM1366BS vs. BM1366AL — Know Your Variant
| Variant | Primary ASIC | Bitaxe Compatible |
|---|---|---|
| BM1366BS | Antminer S19k Pro | Bitaxe Ultra |
| BM1366AL | Antminer S19 XP | Bitaxe Ultra |
Both the BS and AL variants are part of the BM1366 family — same 5nm process, same SHA-256 architecture. The critical difference is the target hardware: BM1366BS is the S19k Pro chip, BM1366AL is the S19 XP chip. For hashboard repairs, you must match the variant to your machine. For Bitaxe Ultra builds, either variant works — the Bitaxe doesn’t care which bin the chip came from, as long as it’s BM1366 family.
Frequently Asked Questions
Can I use the BM1366BS in a Bitaxe Ultra?
Yes. The Bitaxe Ultra is built around BM1366-family chips. The BS variant is fully compatible — solder it onto the Bitaxe Ultra PCB and it will hash SHA-256 just like any other BM1366. D-Central stocks all Bitaxe Ultra models and accessories if you need the complete build.
Can I use a BM1366BS to repair an S19 XP (or vice versa)?
No — use the correct variant for your machine. The BM1366BS is designed for S19k Pro hashboards and the BM1366AL is designed for S19 XP hashboards. While they share the same chip family, the variants have different packaging and pinout configurations matched to their respective hashboard designs. Don’t cross them.
Are these chips genuinely new, or pulled from used miners?
These are sourced from brand-new equipment by D-Central’s technicians. They haven’t been run in production mining. That matters — a chip that’s been hashing at high temperatures for months has undergone thermal stress and electromigration. Fresh silicon gives you the best chance of a successful repair and the longest operational life, whether it ends up on a hashboard or a Bitaxe.
My S19k Pro is losing hashrate — is it a bad chip?
Possibly. Check your miner’s kernel log for ASIC errors — they’ll point to specific chip positions in the hash chain. A single failed BM1366BS can take an entire chain offline, which shows up as a hashboard running at reduced or zero hashrate. If you’re seeing consistent errors at the same chip position, that’s your culprit. If you’d rather not diagnose it yourself, D-Central’s repair team does this every day — ship us the board and we’ll handle it.
Why buy ASIC chips from D-Central?
Because we’re not a chip reseller — we’re an ASIC repair shop that also sells chips. D-Central has been repairing Bitcoin mining hardware since 2016, with dedicated documentation for 38+ ASIC models. We source chips from new equipment, test them, and use the same inventory for our own repair bench. When we sell you a BM1366BS, it’s the same quality we’d use to repair a customer’s machine. On top of that, we’re pioneers in the Bitaxe ecosystem — we know this chip family from both the repair side and the open-source mining side.
From the ASIC Repair Leaders
D-Central Technologies has been in the chip-level repair business since 2016 — diagnosing hashboards, replacing failed silicon, and getting miners back online. We maintain 38+ model-specific repair pages because every machine is different and our customers deserve documentation that matches their hardware. The BM1366BS chips we sell come from the same sourcing pipeline we use for our own repair bench — brand-new equipment, handled by our technicians. We’re also a pioneer in the Bitaxe ecosystem, having created the original Mesh Stand and built out a full line of Bitaxe accessories. Whether you’re fixing an S19k Pro or building a Bitaxe Ultra, you’re buying from the Bitcoin Mining Hackers who work with this hardware every day. Every hash counts.
Can I use the BM1366BS in a Bitaxe Ultra?
Yes. The Bitaxe Ultra is built around BM1366-family chips. The BS variant is fully compatible — solder it onto the Bitaxe Ultra PCB and it will hash SHA-256 just like any other BM1366. D-Central stocks all Bitaxe Ultra models and accessories if you need the complete build.
Can I use a BM1366BS to repair an S19 XP (or vice versa)?
No — use the correct variant for your machine. The BM1366BS is designed for S19k Pro hashboards and the BM1366AL is designed for S19 XP hashboards. While they share the same chip family, the variants have different packaging and pinout configurations matched to their respective hashboard designs. Don’t cross them.
Are these chips genuinely new, or pulled from used miners?
These are sourced from brand-new equipment by D-Central’s technicians. They haven’t been run in production mining. That matters — a chip that’s been hashing at high temperatures for months has undergone thermal stress and electromigration. Fresh silicon gives you the best chance of a successful repair and the longest operational life, whether it ends up on a hashboard or a Bitaxe.
My S19k Pro is losing hashrate — is it a bad chip?
Possibly. Check your miner’s kernel log for ASIC errors — they’ll point to specific chip positions in the hash chain. A single failed BM1366BS can take an entire chain offline, which shows up as a hashboard running at reduced or zero hashrate. If you’re seeing consistent errors at the same chip position, that’s your culprit. If you’d rather not diagnose it yourself, D-Central’s repair team does this every day — ship us the board and we’ll handle it.
Why buy ASIC chips from D-Central?
Because we’re not a chip reseller — we’re an ASIC repair shop that also sells chips. D-Central has been repairing Bitcoin mining hardware since 2016, with dedicated documentation for 38+ ASIC models. We source chips from new equipment, test them, and use the same inventory for our own repair bench. When we sell you a BM1366BS, it’s the same quality we’d use to repair a customer’s machine. On top of that, we’re pioneers in the Bitaxe ecosystem — we know this chip family from both the…
Shop the Bm1366bs Asic Chip Antminer S19k Pro and more at D-Central Technologies, shipping worldwide from Canada.
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