We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green rectangular notebook motherboard with silver CPU socket and mounted I7 processor

WMtec

WMtec Server Motherboard B50-70 N50-70 LA-B091P I7 CPU

SKU CH-8550-064A8

Replacement motherboard for B50-70 and N50-70 laptops using LA-B091P board with Intel Xeon E5 i7 processor

  • CPU TypeIntel Xeon E5
  • Compatible with B50-70 and N50-70 chassis
  • Features LA-B091P board revision for precise fit
  • Equipped with Intel Xeon E5 I7 processor
  • Supports 3825 and 3558 CPU variants
  • New condition ensures reliable server deployment

Compatible replacement mainboard for B50-70

This motherboard is designed as a direct replacement for Lenovo B50-70 and N50-70 models using the LA-B091P part number. It ships with an Intel Xeon E5 processor installed, identified as an I7 CPU variant alongside 3825 and 3558 references. The board suits repair technicians or owners restoring these specific notebook platforms.

Thermals noise and power draw in normal use

The integrated design relies on the laptop's existing cooling assembly to manage heat from the Xeon E5 processor. Power consumption follows the original system specifications for the B50-70 and N50-70 chassis. No separate fan or radiator specifications are provided for this mainboard alone.

Pre-installed processor removes separate CPU

The board arrives with the Intel Xeon E5 I7 CPU already mounted, eliminating the need to purchase or install a separate processor. This simplifies the repair workflow for compatible B50-70 and N50-70 units. No additional accessories or software bundles are mentioned in the product data.

Highlights

  • Compatible with B50-70 and N50-70 chassis
  • Features LA-B091P board revision for precise fit
  • Equipped with Intel Xeon E5 I7 processor
  • Supports 3825 and 3558 CPU variants
  • New condition ensures reliable server deployment

Specifications

CPU TypeIntel Xeon E5

Questions about this item

How do I install the LA-B091P motherboard into a B50-70 or N50-70 chassis, and which step is most often missed?

Align the board mounting holes with the chassis standoffs, secure the screws, then reconnect the display cable and DC-in jack — the step most often missed is reseating the display cable fully into the connector.

What maintenance or replacement will the LA-B091P motherboard need over time?

The CMOS battery will eventually need replacement to retain BIOS settings, and the CPU heatsink compound should be refreshed if temperatures rise after extended use.

What limit appears first on the LA-B091P under sustained load with the Xeon E5 processor?

Thermal throttling typically appears first as the compact notebook cooling assembly reaches its heat-dissipation capacity during prolonged heavy workloads.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.