Description
The hash board is the heart of every ASIC miner — it is where the silicon meets the SHA-256 algorithm and turns electricity into hash rate. This is an original Bitmain replacement hashboard for the Antminer S19 XP, fully tested and ready to drop into your miner. If one of your three S19 XP boards has failed, gone offline, or is producing errors, this board restores your rig to full 140 TH/s operation without replacing the entire machine. One board swap, performed in under 30 minutes, saves you the cost of a complete unit and keeps your mining operation running.
Each S19 XP hashboard carries 110 BM1366 ASIC chips organized into 11 voltage domains of 10 chips each, delivering approximately 46.7 TH/s per board at 21.5 J/TH efficiency. The BM1366 is the same chip that powers the Bitaxe Ultra — Bitmain’s 5nm workhorse that redefined the efficiency curve for SHA-256 mining. This is not a refurbished pull from a scrap unit. This is a tested, verified board ready for production hashing.
D-Central has been repairing ASIC miners since 2016 from our facility in Laval, Quebec. We know S19 XP hashboards inside and out — the BOM, the failure patterns, the domain structure, the test procedures. Every board we sell has been verified on a test jig before it ships. If you need installation assistance, our repair team can walk you through the swap or handle it for you.
Technical Specifications
| Specification | Value |
|---|---|
| Compatible Miner | Bitmain Antminer S19 XP (air-cooled, ~140 TH/s) |
| ASIC Chip | BM1366 (5nm) |
| Chips per Board | 110 |
| Domain Configuration | 11 domains × 10 chips |
| Hash Rate per Board | ~46.7 TH/s |
| Algorithm | SHA-256 (Bitcoin) |
| Board Version | BHB56801 |
| PCB Type | Aluminum substrate |
| Boards per Miner | 3 |
| Condition | Tested & verified functional |
| Testing | Full hash test on S19 XP test jig before shipment |
Key Features
- Original Bitmain hardware — genuine BM1366 chips, factory PCB layout, correct voltage domain configuration for the S19 XP platform
- Pre-tested before shipment — every board is verified on a test jig to confirm all 110 chips are hashing correctly, eliminating dead-on-arrival risk
- Drop-in replacement — physically and electrically identical to the factory board; connect the data ribbon cable and power connectors, close the lid, and boot
- Restores full hash rate — a single failed board drops your S19 XP to ~93 TH/s. This board brings you back to the full ~140 TH/s
- Cost-effective vs. full unit replacement — replacing one board costs a fraction of buying a new miner while recovering a third of your total hash power
Compatibility
This hashboard is designed for the Bitmain Antminer S19 XP (air-cooled) model producing approximately 140 TH/s. It is not compatible with the S19 XP Hydro (water-cooled) variant, which uses a different board layout (HHB56601 with 204 BM1366 chips in 17 domains). It is also not compatible with other S19-series models (S19, S19 Pro, S19j Pro) which use different ASIC chips (BM1398 or BM1362). Verify your exact model before ordering.
Installation Overview
- Power off the miner completely and disconnect from the PSU
- Remove the fan grill and fans from the side closest to the failed board
- Disconnect the data ribbon cable and power connectors from the failed hashboard
- Slide out the defective board and slide in the replacement
- Reconnect the data ribbon cable and power connectors
- Reassemble fans and grill, reconnect PSU, and power on
- Verify all three boards are detected in the miner dashboard and hashing normally
The entire swap takes 15–30 minutes with basic tools. If you prefer professional installation, D-Central offers full ASIC repair service — ship us the miner and we handle the board swap, testing, and burn-in.
Frequently Asked Questions
How do I know if my S19 XP hashboard needs replacing?
Common symptoms include: one of three boards missing from the miner dashboard, a board showing zero hash rate or significantly reduced hash rate, persistent ASIC chip errors on one board, or the miner reporting abnormal voltage on a specific chain. If you see « Chain 0/1/2 » with one chain offline or throwing errors, that board likely needs replacement. For a definitive diagnosis, contact our ASIC repair team.
Is this board compatible with the S19 XP Hydro?
No. The S19 XP Hydro uses a completely different hashboard (model HHB56601) with 204 BM1366 chips in 17 domains of 12 chips each, designed for liquid cooling. This listing is for the air-cooled S19 XP only. Contact us if you need a Hydro-specific board.
Will I need to update firmware after installing the new board?
In most cases, no. The S19 XP control board will detect and initialize the new hashboard automatically on boot. If the replacement board has a different firmware revision than your existing boards, the control board typically handles the calibration. If you encounter issues, a firmware reflash via SD card resolves most initialization problems.
Can I mix hashboard revisions in the same S19 XP?
Bitmain recommends using boards of the same revision for optimal performance. In practice, boards from the same generation (BHB56801 with BM1366 chips) work together reliably. If you have an earlier S19 XP unit with a different board revision, contact us with your miner serial number and we will confirm compatibility before you order.
Do you buy back defective hashboards?
We accept defective hashboards for repair assessment. Depending on the failure mode, board-level repair is often possible and significantly cheaper than a full replacement. Contact our repair team for a diagnostic quote. We repair hashboards from every major manufacturer at our Laval, Quebec facility.
Why D-Central
D-Central Technologies has been the go-to source for Bitcoin mining hardware and ASIC repair in Canada since 2016. We do not just sell parts — we understand them. Our technicians diagnose and repair S19 XP hashboards every day. When you order a replacement board from D-Central, it has been tested by the same team that repairs them. That is a level of quality assurance you will not get from a random parts vendor.
Shipped from Canada. Tested in Canada. Backed by a team that actually knows what a BM1366 domain structure looks like under a microscope. Every hash counts — and every hash starts with a working hashboard. Explore our full ASIC repair services.
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