{"product_id":"5b21f28595-lenovo-thinkpad-e14-gen-4-motherboard-i5-1235u-8gb-ram-nm-e491-tested","title":"5B21F28595 Lenovo ThinkPad E14 Gen 4 Motherboard i5-1235U 8GB RAM NM-E491 Tested","description":"\u003cp\u003e\u003cstrong\u003e5B21F28595 Lenovo ThinkPad E14 Gen 4 Motherboard i5-1235U 8GB RAM NM-E491 Tested\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDirect replacement system mainboard for Lenovo ThinkPad E14 Gen 4 series laptops. Fully bench-tested pulled component featuring an onboard Intel Core i5-1235U processor and 8GB soldered DDR4 RAM. Designed to restore original system performance, power distribution, and board-level stability for teardowns and mainboard replacement projects.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eITEM SPECIFICATIONS: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Lenovo \u003c\/p\u003e\n\u003cp\u003eMain Part Number (MPN): 5B21F28595 \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlternate Part Numbers:\u003c\/strong\u003e 5B21F28596, NM-E491, SB21F28595, 21E3 MB \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Lenovo ThinkPad E14 Gen 4 (Type 21E3, 21E4 Series) \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Laptop Motherboard \/ System Board \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Specifications:\u003c\/strong\u003e Onboard Intel Core i5-1235U Processor (up to 4.40GHz), Integrated Intel Iris Xe \/ UMA Graphics, 8GB Soldered RAM + 1x DDR4 SO-DIMM Slot, USB-C \/ Thunderbolt 4\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEY FEATURES \u0026amp; HIGHLIGHTS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExact Fitment:\u003c\/strong\u003e Factory teardown component ensuring precise chassis alignment, thermal assembly fit, and full interface connector compatibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Processing Power:\u003c\/strong\u003e Includes pre-installed 10th Gen Core i5-1235U CPU and 8GB onboard memory for direct drop-in repair installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermally Tested Architecture:\u003c\/strong\u003e Bench-tested under load conditions to verify stable voltage delivery, heat transfer, and system boot operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCore Repair Solution:\u003c\/strong\u003e Resolves cracked board traces, power delivery IC failures, no-post conditions, and system lockups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWHAT IS INCLUDED:\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003e(1) Lenovo ThinkPad E14 Gen 4 Laptop Motherboard (MPN 5B21F28595 - Intel i5-1235U, 8GB RAM)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQUALITY ASSURANCE \u0026amp; SHIPPING:\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTested:\u003c\/strong\u003e Bench-tested, diagnostic verified, and BIOS confirmed fully operational prior to inventory entry. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging:\u003c\/strong\u003e Encased in anti-static ESD shielding bags with heavy-duty protective foam transit packaging.\u003c\/p\u003e","brand":"Sopris Computer Parts","offers":[{"title":"Default Title","offer_id":43307081629905,"sku":"5B21F28595|LENOVO|NEW","price":1100.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/9065\/6721\/files\/5B21F285952.jpg?v=1789502360","url":"https:\/\/sopriscomputerparts.com\/products\/5b21f28595-lenovo-thinkpad-e14-gen-4-motherboard-i5-1235u-8gb-ram-nm-e491-tested","provider":"Sopris Computer Parts","version":"1.0","type":"link"}