ElphaPex DG1 DG1+ Brand New Control Board Replacement for Crypto Miners
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ElphaPex DG1 / DG1+ Control Board | RK3358J Replacement Motherboard for Dogecoin / Litecoin Miner Repair
The ElphaPex DG1 / DG1+ Control Board is the brand-new replacement motherboard for ElphaPex DG1 and DG1+ Dogecoin / Litecoin miners. Drop-in fix when the original control board fails — restores normal miner operation and clears the IP-detection failures, web-UI access problems, and hashboard recognition errors that take the miner offline. Built on a four-layer through-hole FR4 PCB with the RK3358J main controller, the board measures 110 × 100 × 1.6mm (V2.3 PCB version).
The RK3358J main controller handles hashboard communication, network management, fan control and firmware operations. The four-layer PCB design provides better signal integrity and power distribution than two-layer alternatives — critical for stable hashboard detection across all slots. The V2.3 PCB revision addresses earlier board issues and provides improved reliability for continuous mining operation. Critical note: DG1 and DG1+ use different firmware — select the matching variant at checkout and flash the correct firmware version after installation.
When to Replace the DG1 / DG1+ Control Board
- Miner doesn't get an IP address on the LAN — Ethernet PHY or boot stage on the controller failed.
- Backstage / web UI unreachable with confirmed network link — CPU or storage on the control board hung.
- Hashboards not detected in the dashboard despite all hardware being physically connected — I²C / SPI bus failure on the controller.
- Firmware errors after a failed flash — board won't boot, re-flashing doesn't recover.
- Visible damage on the original board — burn marks, swollen capacitors, surge damage to the network or fan port.
ElphaPex DG1 / DG1+ Control Board Specifications
| Specification | Detail |
|---|---|
| Compatible Models | ElphaPex DG1, DG1+ (select variant at checkout) |
| Main Controller | RK3358J |
| PCB Material | FR4 |
| PCB Layers | Four-layer through-hole design |
| Dimensions | 110 × 100 × 1.6 mm |
| PCB Version | V2.3 (improved reliability over earlier revisions) |
| Firmware | Different for DG1 and DG1+ — flash correct version after install |
| Function | Hashboard communication, network, fan control, firmware management |
| Installation | Drop-in OEM replacement |
| Condition | Brand New |
FAQ — DG1 / DG1+ Control Board
Q: Can the same board run both DG1 and DG1+ firmware?
A: Hardware is identical across the two models — but the firmware builds differ. Select the matching variant at checkout to ship with the correct firmware; flashing the wrong build will work mechanically but the miner won't acquire the right hashboard parameters.
Q: How do I diagnose whether it's the control board or a hashboard issue?
A: If all hashboards report missing simultaneously, it's almost certainly the control board (I²C / SPI bus fault). If a single board is missing while others work, run that board on a test fixture to confirm — single-board failures point to the board itself, not the controller.
Q: What's improved in the V2.3 PCB revision?
A: V2.3 addresses earlier signal-integrity and stability issues seen on V2.0 / V2.1 / V2.2 production. For long-term reliability, replace older revisions with the V2.3 board during refurbishment.
Q: Bulk pricing for repair centers?
A: Yes — email contact@lys-sz.com with your typical monthly volume and we'll send tier pricing.
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Repair centers stocking ElphaPex DG1 / DG1+ control boards by the case? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.
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).
