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Green Dell laptop motherboard with silver components, model 7405 part NNDRC

DELL

DELL INSPIRON 7405 2-IN-1 AMD RYZEN 5 4500U MOTHERBOARD NNDRC

SKU CH-HSE4-HRZG6

Replacement motherboard for the Inspiron 7405 2-in-1 laptop with a Ryzen 5 4500U processor

  • ProcessorA- Series/E-Series
  • Designed for Inspiron 7405 2-in-1 models
  • Supports Ryzen 5 4500U processor performance
  • Genuine Dell NNDRC part-number match
  • New condition ready for installation

Dell Inspiron 7405 2-in-1 motherboard

This replacement board fits the Inspiron 7405 convertible laptop and carries the AMD Ryzen 5 4500U processor. It is intended for technicians repairing a damaged system or upgrading a compatible chassis. The part number NNDRC identifies the exact revision required for proper fit and firmware alignment.

Thermals and power in normal use

The integrated Ryzen 5 4500U operates within a low thermal envelope suited to the slim 2-in-1 design. Fan activity remains modest during typical productivity workloads and the board draws only the power needed for the processor and onboard components. No discrete graphics circuitry is present so heat output stays predictable.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $148.99
Cheaper than about 62% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameDELL
Model nameINSPIRON 7405
Part numberNNDRC
Processor
ProcessorA- Series/E-Series

Questions about this item

How do I install the DELL INSPIRON 7405 motherboard, and which step is commonly missed?

Remove the battery first, then disconnect all ribbon cables and antenna wires before unscrewing the board. The step often missed is reattaching the Wi‑Fi antenna cables to the correct terminals.

What maintenance or replacement will the DELL INSPIRON 7405 board need later?

The CMOS battery will eventually need replacement to keep system time. Because the CPU is soldered, processor upgrades are not possible, so plan for a full board swap if performance demands increase.

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