{"product_id":"bm1387-bm1387b-antminer-s9-asic-chip","title":"BM1387 BM1387B Brand New \u0026 Original replacement ASIC chip for Antminer S9","description":"\u003ch2\u003eBM1387 BM1387B ASIC Chip for Antminer S9 Hashboard Repair\u003c\/h2\u003e\n\u003cp\u003eThe BM1387B is the original ASIC processor chip powering every Antminer S9, S9i, and T9+ hashboard. When your S9 reports declining hash rate, detects missing chips during diagnostics, or generates excessive hardware errors, a failed BM1387B is the most common root cause. This brand new, factory-sealed replacement chip restores full SHA256 hashing capability to the affected hashboard position.\u003c\/p\u003e\n\u003ch3\u003eBM1387B Chip Compatibility: Antminer S9, S9i \u0026amp; T9+\u003c\/h3\u003e\n\u003cp\u003eThe BM1387B maintains pin-level compatibility across the entire S9 generation. Whether you operate original S9 units, the improved S9i variant, or the T9+ platform, this chip drops into any position on the hashboard without modification. The SMD package format matches the original BGA footprint exactly, ensuring proper solder joint formation when using standard hot air rework equipment.\u003c\/p\u003e\n\u003ch3\u003eDiagnosing BM1387B Chip Failures on S9 Hashboards\u003c\/h3\u003e\n\u003cp\u003eBefore ordering replacement chips, identify which positions on your hashboard are defective. Connect the hashboard to a \u003ca href=\"\/products\/antminer-universal-hashboard-test-fixture-asic-faulty-chips-scanning-device-bitmain\"\u003eUniversal Antminer Hashboard Test Fixture\u003c\/a\u003e to scan all chip positions and flag failing units. The S9 hashboard contains 63 BM1387B chips per board — a single failed chip disables the entire board, so precise identification saves both time and inventory. For the soldering process, the \u003ca href=\"\/products\/antminer-bm1387-bm1393-bm1396-bm1397-bm1398-universal-tin-fixture-stencil-plate\"\u003eBM1387 Universal Tin Fixture Stencil\u003c\/a\u003e ensures consistent solder ball placement across chip pads.\u003c\/p\u003e\n\u003ch3\u003eBM1387B Specifications \u0026amp; Factory Quality Assurance\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\" cellspacing=\"0\" cellpadding=\"10\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"background-color: #f2f2f2;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"background-color: #f2f2f2;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eBM1387B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eBitmain (Antminer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Hashboards\u003c\/td\u003e\n\u003ctd\u003eAntminer S9, S9i, T9+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Type\u003c\/td\u003e\n\u003ctd\u003eSMD (Surface Mount Device)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlgorithm\u003c\/td\u003e\n\u003ctd\u003eSHA256 (Bitcoin, Bitcoin Cash)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eBrand new, factory sealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChips per S9 Hashboard\u003c\/td\u003e\n\u003ctd\u003e63\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eS9 Hashboard Chip Replacement Workflow\u003c\/h3\u003e\n\u003cp\u003eAfter identifying the defective chip position, remove the failed BM1387B using hot air rework or BGA desoldering equipment. Apply flux and position the new chip using the stencil plate for accurate alignment. Reflow the solder joints and allow the board to cool before testing. Run a full hashboard scan to confirm the repair before returning the board to production. If you maintain mixed Antminer fleets, our \u003ca href=\"\/products\/bm1387be-new-original-replacement-asic-chip-antminer-s9j-hydro\"\u003eBM1387BE chip for S9j Hydro\u003c\/a\u003e covers the water-cooled S9 variant.\u003c\/p\u003e\n\u003ch3\u003eWhy Buy BM1387B Chips from LYS?\u003c\/h3\u003e\n\u003cp\u003eWe source BM1387B chips directly from Bitmain's manufacturing supply chain in Shenzhen, guaranteeing authenticity and eliminating counterfeit risk. Every chip is factory sealed with full traceability. We ship via DDP worldwide — you pay the listed price with no hidden duties or customs charges. For bulk chip orders, contact us for volume pricing tailored to your repair operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNext Step:\u003c\/strong\u003e \u003ca href=\"\/products\/antminer-bm1387-bm1393-bm1396-bm1397-bm1398-universal-tin-fixture-stencil-plate\"\u003eGet the BM1387 Universal Tin Fixture\u003c\/a\u003e or contact our support team at contact@lys-sz.com or via WhatsApp for stock availability and technical guidance.\u003c\/p\u003e","brand":"LYS Shenzhen","offers":[{"title":"Default Title","offer_id":41722509820083,"sku":null,"price":1.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6710\/4179\/files\/BM1387-BM1387B-Antminer-Brand-New-Original-replacement-IC-chip.webp?v=1746602822","url":"https:\/\/lys-sz.com\/products\/bm1387-bm1387b-antminer-s9-asic-chip","provider":"LYS Shenzhen","version":"1.0","type":"link"}