{"product_id":"bm1391ae-antminer-s15-t15-hashboard-asic-chip","title":"BM1391AE Antminer S15 T15 Hashboard ASIC Chip","description":"\u003ch2\u003eBM1391AE Replacement ASIC Chip – Antminer S15 \/ T15 Hashboard Repair\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBM1391AE\u003c\/strong\u003e is the \u003cstrong\u003eSHA-256 hashing ASIC\u003c\/strong\u003e at the heart of the \u003cstrong\u003eAntminer S15 and T15\u003c\/strong\u003e hashboards (7nm process). Each hashboard carries dozens of these chips wired in series; when one fails — short, open or partial degradation — the entire chain drops out and the controller reports a low chip count. Replacing the failed chip restores the chain to its rated hash rate without scrapping the whole board.\u003c\/p\u003e\n\u003ch3\u003eHow a Failed BM1391AE Looks on the Bench\u003c\/h3\u003e\n\u003cp\u003eOn a hashboard test fixture, a failed BM1391AE shows up as a \u003cstrong\u003ebreak in the chip-count chain\u003c\/strong\u003e — the fixture scans up to chip N-1 and stops, indicating chip N is the failure point. A multimeter check of the chip-VDD pin against ground typically reads near 0Ω (shorted die), or open. Visual inspection sometimes shows a discoloured or cracked package. The fixture-reported chip number maps directly to the physical position on the board.\u003c\/p\u003e\n\u003ch3\u003eReplacement Procedure\u003c\/h3\u003e\n\u003cp\u003ePre-heat the hashboard to 130-150°C. Mark the failed chip's position. Remove the chip with hot air at 320-340°C using an appropriately sized nozzle, lifting straight up to avoid pad damage. Clean residual solder from the pads with flux and braid. Apply a thin layer of leaded solder paste through the matching \u003ca href=\"\/products\/innosilicon-t1-t1558-lovecore-a1-bfl1001-chips-tin-fixture-stencil-plate\"\u003etin stencil\u003c\/a\u003e if available. Place the new BM1391AE with pin 1 aligned to the silkscreen mark, reflow at 320°C, and re-test on the fixture before reassembly.\u003c\/p\u003e\n\u003ch4\u003eBM1391AE Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eBM1391AE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eFunction\u003c\/td\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eSHA-256 hashing ASIC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eProcess Node\u003c\/td\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003e7nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003ePackage\u003c\/td\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eSMD BGA \/ leadless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eChain Topology\u003c\/td\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eSeries-wired across hashboard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eAntminer S15 \/ T15 hashboards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eFailure Mode\u003c\/td\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eShorted die, open chain, partial degradation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eQC\u003c\/td\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eBrand new, individually tested\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"text-align: left; padding: 6px 12px;\"\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eRelated S15 \/ T15 Repair Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/antminer-s15-t15-replacement-control-board\"\u003eAntminer S15 \/ T15 Original Control Board\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/apw8-16v-20v-power-supply-unit-psu-bitmain-antminer-s15-t15\"\u003eAPW8 16-20V PSU – Antminer S15 \/ T15\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/dmp34m4sps-tpca8128-mosfet-pchannel-30v-34a-hashboard-replacement-ic-antminer-s11-s15-t15-repair\"\u003eDMP34M4SPS \/ TPCA8128 P-Channel MOSFET – S11 \/ S15 \/ T15\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/antminer-l3-test-fixture-hashboard-faulty-asic-chips-scanner\"\u003eAntminer Hashboard Test Fixture (chip scanner)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eStocking BM1391AE for an S15 \/ T15 fleet refurb? \u003ca href=\"mailto:contact@lys-sz.com\"\u003eContact us at contact@lys-sz.com\u003c\/a\u003e for tray-quantity pricing. Worldwide shipping from our Shenzhen warehouse.\u003c\/p\u003e","brand":"LYS Shenzhen","offers":[{"title":"Default Title","offer_id":42029372735667,"sku":null,"price":11.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6710\/4179\/files\/BM1391AE-antminer-bitmain-hash-board-ic-chip.webp?v=1745714701","url":"https:\/\/lys-sz.com\/products\/bm1391ae-antminer-s15-t15-hashboard-asic-chip","provider":"LYS Shenzhen","version":"1.0","type":"link"}