Genuine Lenovo LOQ Gaming System Mainboard (BDPLANAR Replacement Suite)
13th Gen Intel Core i7-13700H 🟢 Dedicated NVIDIA GeForce RTX 4060 8GB 🟢 Part Number: 5B21L28174🚀 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 holdups, 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).📋 ENTERPRISE GAMING PERFORMANCE HIGHLIGHTSThis genuine, authentic Lenovo factory replacement high-performance system mainboard features a premium integrated 13th Generation Intel Core i7 H-Series processor and powerful dedicated discrete NVIDIA GeForce RTX 40-Series graphics processing, perfect for direct laptop hardware restoration.🔵 Integrated Processor Core: Intel Core i7-13700H (Up to 5.00 GHz Turbo, 14 Cores [6 Performance / 8 Efficient], 20 Threads, 24MB Smart Cache).
🔵 Discrete Graphics Architecture: Dedicated NVIDIA GeForce RTX 4060 Processing Unit with 8GB of dedicated GDDR6 VRAM.
🔵 System Memory Infrastructure: Dual open DDR5 SODIMM slots supporting high-speed memory configurations up to 64GB DDR5-5200.
🔵 On-Board Protection Layer: Hardware-based yTPM 2.0 (Trusted Platform Module) cryptographic chip embedded natively.🔄 FACTORY ARCHITECTURE & BLUEPRINT VERIFICATION:This is the exact, genuine Lenovo factory-original replacement motherboard layout matching the LA-M542P structural schematic footprint. If your broken laptop’s main logic board has "LA-M542P" permanently etched in white text directly onto the fiberglass substrate surface layer near the RAM slots, this factory-sealed unit is a guaranteed, exact 1:1 drop-in replacement for your machine.🔵 Printed Circuit Board (PCB) Designator: Compal LA-M542P Architecture
🔵 Lenovo Primary Sourced FRU/MPN: 5B21L28174
🔵 System Chipset Platform: Intel HM770 Platform Strategy🔄 OFFICIAL FACTORY COMPATIBILITY MATRIXAccording to official factory blueprints, this motherboard is built under highly specific engineering metrics, has zero alternate part substitutes, and is designed exclusively as a direct drop-in replacement for the following machines:● Motherboard Architecture Blueprint: LA-M542P Framework
● Lenovo LOQ 15IRH8 Laptop: Chassis Type 82XV (Requires exact matching part number)
● Lenovo LOQ 16IRH8 Laptop: Chassis Type 82XW (Requires exact matching part number)⚠️ STRICT BUYER FITMENT VERIFICATION DISCLAIMER🔴 NO SUBSTITUTES: This motherboard has no interchangeable part alternatives. It requires an exact match. Do not attempt to purchase this board if your failed component does not display part number 5B21L28174 on its white barcode label.
🔴 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.
🔴 THERMAL DRAW WARNING: This is a high-wattage discrete performance gaming architecture layout. Fitment requires your laptop to possess the original high-draw factory LOQ power brick and the matching dual-fan heavy copper cooling pipe assembly. It WILL NOT match or fit into standard non-gaming consumer IdeaPad, ThinkPad, or high-tier Legion variants.🛠️ HARDWARE WAREHOUSE & CONDITION NOTES:🟢 OEM Warehouse 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 assembly.🛡️ 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: 5B21L28174
• Board Model (Blueprint Layout): LA-M542P
• Compatible Product Line: Lenovo LOQ 15IRH8 / Lenovo LOQ 16IRH8
• Processor Brand / Model: Intel Core i7-13700H 13th Gen Onboard
• Dedicated Graphics Card: NVIDIA GeForce RTX 4060 (8GB GDDR6 Dedicated VRAM)
• Memory Slot Type: 2x DDR5 SODIMM Slots (Unpopulated / Supports up to 64GB)
• Chipset Infrastructure: Intel HM770 Platform Strategy
• Seller Location: United States (US-Based Seller)
• Handling Time: Fast 1 Business Day
• Features: Hardware yTPM 2.0 Security Encryption Array
• Condition: Open Box