Genuine Lenovo ThinkPad System Mainboard (BDPLANAR Replacement Suite)
8th Gen Intel Core i7-8565U 🟢 16GB Soldered RAM 🟢 Part Number: 5B20X57823 / 01YU368🚀 TRUSTED US-BASED SELLER 🟢 FAST 1-DAY HANDLING TIME🟢 Proudly USA Sourced: This item ships directly from our secure warehouse facility within the United States. No long overseas customs delays, no international routing bottlenecks, and seamless domestic communication.
🟢 Fast 1-Day Handling Turnaround: Packaged with professional care and dispatched to the carrier transit network within 1 business day of cleared payment. Real-time tracking numbers uploaded instantly.
🟢 USA Shipping: 100% Free standard tracking shipping anywhere across the United States via USPS Ground Advantage or alternate tracked ground paths.
🟢 Logistics Safety: Protected inside its genuine Lenovo packaging and wrapped heavily in a premium anti-static ESD shielding bag to survive transit impacts cleanly.
🟢 Global Availability: International transit is supported to select eligible regions via the secure International Shipping program. (Please check the exclusions tab for country eligibility verification).🔴🔴🔴 GEAR IMPORTANT TECHNICIAN NOTE FOR INSTALLATION (READ BEFORE BUYING): 🔴🔴🔴🔴 100% BRAND NEW OEM STOCK: This motherboard is pristine, brand-new factory inventory (New Old Stock). It is NOT a pulled, used, or refurbished board.
🔴 BLANK EEPROM CHIP: Because this mainboard is factory-fresh, the internal BIOS EEPROM chip is clean and unprogrammed. This is the deliberate global factory standard for all uninstalled business-class replacement hardware.
🔴 FIRST BOOT EXPECTATION: Upon your initial power-on cycle, the system will display a standard boot error reading: "Machine Type and Model (MTM) / Serial Number are Invalid." Editing fields inside the basic user BIOS screen will be greyed out.
🔴 SYSTEM FLASH REQUIRED: To clear this boot warning and securely link the hardware to your laptop casing, you must inject your system's serial information. This standard field procedure is easily completed by running the official Lenovo Hardware Maintenance Diskette (HMD) bootable USB utility or the ThinkPad Motherboard Self-Repair Tool.
🔴 ACTIVATION & STABILITY: Windows 11 Pro will detect the core hardware architecture and activate uniquely without issues once configuration data is injected.
🔴 STRICT PURCHASE TERMS: If you or your service repair center are unfamiliar with standard Lenovo fleet deployment procedures, please contact us prior to purchase. We do not cover return shipping or authorize refunds for buyers who mistake factory-blank setup screens for hardware defects. Professional IT depots and independent technicians can buy with absolute confidence!📋 ENTERPRISE SYSTEM PERFORMANCE HIGHLIGHTSThis genuine, authentic Lenovo factory replacement high-performance system mainboard features an integrated Intel Core i7 processor and an elite on-board factory memory configuration, perfect for direct laptop hardware restoration.🔵 Integrated Processor Core: Intel Core i7-8565U (1.80 GHz Base Clock, Up to 4.60 GHz Max Turbo Boost, 4 Cores, 8 Threads, 8MB Intel Smart Cache).
🔵 Graphics Architecture Engine: Integrated Intel UHD Graphics 620 (UMA graphics processor array).
🔵 System Memory Infrastructure: 16GB Soldered RAM configured in high-bandwidth Dual-Channel architecture (0 open expansion slots remaining).
🔵 On-Board Protection Layer: Hardware-based discrete yTPM 2.0 (Trusted Platform Module) cryptographic chip embedded natively.
🔵 Wireless Connectivity Node: Built with native layout provisions optimized to pair cleanly with Intel Wireless-AC 9560 network card modules.🔄 OFFICIAL FACTORY CROSS-COMPATIBILITY LEDGERThis factory service unit is a direct, drop-in engineering substitution for any laptop utilizing a board marked with ANY of the following specific Core i7 16GB Part Numbers (MPNs) or board manufacturing lines:● Lenovo Primary Sourced FRU/MPN: 5B20X57823
● Lenovo Secondary Alternate MPNs: 5B21C21440 ● 01YU368 ● 5B21U37031
● Factory Text Line Match: Lenovo BDPLANAR WIN,i7-8565U,16G,9560,yTPM2 Series
● Digital Product Key (DPK): Windows OS License Flag Factory Injected⚠️ STRICT BUYER FITMENT VERIFICATION DISCLAIMER🔴 MACHINE TYPE VERIFICATION: This board matches and fits ONLY the 14-inch ThinkPad X1 Carbon 7th Gen (Chassis Type: 20QD, 20QE) and the 14-inch ThinkPad X1 Yoga 4th Gen (Chassis Type: 20QF, 20QG) laptops. It WILL NOT fit into older 5th/6th Gen frames, newer 8th/9th Gen setups, or alternate consumer chassis lines.
🔴 BUYER RESPONSIBILITY: It is the absolute responsibility of the buyer to ensure they are ordering the exact matching component for their specific system footprint prior to checking out.🛠️ HARDWARE WAREHOUSE & CONDITION NOTES:🟢 Lenovo Logistics Source: Sourced directly from professional tech fulfillment logistics as a clean, crisp, mint factory service replacement part. It is 100% brand new, completely unused, and has never been slotted into an active chassis.
🟢 Internal Packaging Integrity: Stored safely inside its genuine Lenovo cardboard shipping packaging container. The internal gray anti-static ESD shielding bag was opened strictly for quality control to capture clear photographs and document system serialization lines for safety.
🟢 Professional Installation Advised: Laptop mainboards are highly sensitive to electrostatic discharge (ESD). Installation by a certified PC hardware repair technician is strongly advised. User-inflicted static shorts, physical trace scratches, or bracket snaps void return privileges. Does not include a CMOS backup battery or outer cooling heatsink assemblies.🛡️ ANTI-FRAUD PROTECTION & RETURN AUDITING● Individual Mapping: High-resolution macro photographs of the specific board layout, silicon chips, and trace pathways are permanently cataloged in our secure fulfillment database prior to dispatch.
● Electronic Serial Tracking: The unique factory serial numbers, MAC addresses, and integrated hardware cryptographic chips of every unit are electronically scanned and mapped to your order transaction.
● Security Identifiers: Each unit is embedded with unique, permanent, invisible security identifiers applied to the multi-layer PCB substrate. Any evidence of component swapping or tampering voids returns.Important Item Specifics

• Brand: Lenovo
• MPN: 5B20X57823
• Substitute / Alternate MPN: 5B21C21440 / 01YU368 / 5B21U37031
• Compatible Product Line: Lenovo ThinkPad X1 Carbon 7th Gen (20QD, 20QE) / ThinkPad X1 Yoga 4th Gen (20QF, 20QG)
• Processor Brand / Model: Intel Core i7-8565U Onboard Consumer Edition
• Memory Size / Type: 16 GB Soldered (Dual-Channel Architecture)
• On-Board Graphics Type: Integrated Intel UHD Graphics 620
• Intel vPro Support: No (Standard Consumer Architecture Layout)
• Seller Location: United States (US-Based Seller)
• Handling Time: Fast 1 Business Day
• Features: Hardware yTPM 2.0 Encryption Array, Embedded Windows DPK License
• Condition: Open Box