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Green rectangular server motherboard with fingerprint connector visible

WMtec

WMtec Server Motherboard LA-B091P Fingerprint 3825 3558 I3 CPU

SKU CH-W877-3B8M0

Replacement laptop mainboard for B50-70, E50-70 and B50-80 models with fingerprint connector and Intel Xeon E5 CPU

  • ProcessorIntel Xeon E5
  • Compatible with B50-70 E50-70 B50-80 laptops
  • Fingerprint connector included for secure login
  • Intel Xeon E5 CPU delivers server performance
  • LA-B091P mainboard matches original part numbers
  • Ready to install in supported Lenovo models

Replacement laptop motherboard for B50

This new WMtec server motherboard carries part number LA-B091P and is built for Lenovo B50-70, E50-70 and B50-80 laptops. It includes a fingerprint-reader connector and ships with an Intel Xeon E5 processor already fitted. The board suits technicians restoring these specific chassis to working order.

Direct swap for the original LA-B091P board

The part replaces the factory mainboard when the original has failed or been damaged. Because the CPU is integrated, the upgrade step is a single assembly change rather than a separate processor install. The jump is worth it when the existing board shows video artefacts, power faults or a broken fingerprint header.

Handles everyday office workloads

The integrated Xeon E5 delivers enough compute for web browsing, document editing and light multitasking on the supported 50, 70 and 80 series models. Headroom runs out with sustained heavy compilation, virtualisation or gaming loads that demand discrete graphics or higher thermal limits. The fingerprint connector restores biometric sign-in where the original header was damaged.

How it compares

Measured against everything we stock in Server & Workstation Boards, at today’s prices. Recalculated every night.

Price $101.99
Cheaper than about 85% of the 776 comparable items (median $254.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Processor
ProcessorIntel Xeon E5

Questions about this item

Will this LA-B091P board fit the mounting points of a B50-70, E50-70 or B50-80 chassis?

The board is listed as a direct mainboard replacement for the B50-70, E50-70 and B50-80 models, so the mounting holes and standoffs should align with those chassis.

Which connector must be attached during installation to enable the fingerprint reader?

The board includes a dedicated fingerprint connector; plug the ribbon cable from the sensor assembly into that header before securing the board, otherwise the reader will not function.

If the integrated graphics on this Xeon E5 board fail later, can the graphics section be replaced separately?

The graphics are integrated into the processor package, so a graphics fault requires replacing the CPU rather than a discrete card.

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