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Green rectangular laptop motherboard with silver heatsink and integrated Celeron N2840 processor

DELL

DELL Inspiron 5551 Motherboard C0T46 Intel Celeron N2840 2.16 GHz

SKU CH-C0PA-HMSYK

Genuine Dell replacement motherboard with on-board Intel Celeron N2840 dual-core processor at 2.16 GHz and 2.58 GHz burst for Inspiron 15 5551 laptops

  • Genuine Dell OEM part ensures exact fit for Inspiron 5551
  • On-board Intel Celeron N2840 dual-core processor handles everyday tasks
  • Base clock 2.16 GHz provides steady performance for web and office work
  • Burst frequency 2.58 GHz gives extra speed when workloads spike
  • Dell part number C0T46 guarantees correct replacement for your laptop

Genuine Dell Inspiron 5551 motherboard

This genuine Dell OEM system board carries the C0T46 part number and includes an on-board Intel Celeron N2840 dual-core processor running at 2.16 GHz with a burst frequency of 2.58 GHz. It is designed as a direct replacement for the Dell Inspiron 15 5551 laptop.

Straightforward board swap for the 5551

Installation is a direct board swap inside the Inspiron 15 5551 chassis using the existing mounting points and connectors. The main difficulty is the integrated CPU; the processor cannot be upgraded or replaced separately, so the entire board must be exchanged if the CPU fails.

Fixed dual-core performance ceiling

The soldered Celeron N2840 provides two cores at 2.16 GHz, reaching 2.58 GHz in short bursts. This handles basic office tasks and media playback, but multi-threaded workloads and modern applications will quickly exhaust the available headroom.

How it compares

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

Price $108.99
Pricier than about 56% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameDELL

Questions about this item

How can I confirm the motherboard is running at the correct speed after installation?

Enter the system BIOS or use a hardware monitoring tool in the OS to verify the processor reports a base clock of 2.16 GHz and a burst frequency of 2.58 GHz for the Celeron N2840.

What components are included with this Dell C0T46 board and what must be sourced separately?

The board ships with the Intel Celeron N2840 CPU soldered on; you will need to supply your own memory modules, storage drive, wireless card, heatsink assembly and any required mounting screws.

Which Dell laptop models are confirmed compatible with the C0T46 system board?

This motherboard is guaranteed compatible only with the Dell Inspiron 15 5551 series; match the service tag or chassis label to that exact model before ordering.

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