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Green laptop motherboard with silver components and mounted chips

DELL

Dell M0JC3 Latitude 3120 Motherboard Accessory Intel Celeron N5100 1.1 GHz 4 GB LPDDR4X

SKU CH-HNAR-X07KN

Replacement laptop motherboard with Intel Celeron N5100 quad-core processor at 1.1 GHz, 2.8 GHz burst frequency and 4 GB LPDDR4X on-board memory

  • Quad-core Celeron N5100 reaches 2.8 GHz burst for responsive everyday tasks
  • 4 GB LPDDR4X soldered memory keeps the system running smoothly without extra modules
  • Genuine Dell M0JC3 board matches Latitude 3120 chassis for direct drop-in replacement
  • Integrated graphics handle video playback and light workloads without a separate GPU
  • Rev 1 LA-K512P layout restores original port arrangement and mounting points

Dell Latitude 3120 Motherboard with Celeron N5100

This replacement motherboard includes an Intel Celeron N5100 quad-core processor running at 1.1 GHz with a 2.8 GHz burst frequency. It provides 4 GB of LPDDR4X memory soldered directly to the board. The part number M0JC3 identifies the Gdb10 LA-K512P Rev 1 revision for the Latitude 3120 laptop chassis.

Suitable for Latitude 3120 repairs only

Technicians restoring a Dell Latitude 3120 to working order will find the correct CPU and memory configuration here. Buyers who need a board for a different laptop model cannot use this part. The integrated graphics and fixed 4 GB memory also rule it out for anyone requiring upgradeable RAM or a discrete GPU.

On-board 4 GB LPDDR4X memory is not upgradeable

The single specification that decides fitment is the soldered 4 GB LPDDR4X memory. No memory slots are present, so the capacity cannot be increased after installation. Verify that the original system shipped with this exact memory configuration before ordering.

Highlights

  • Quad-core Celeron N5100 reaches 2.8 GHz burst for responsive everyday tasks
  • 4 GB LPDDR4X soldered memory keeps the system running smoothly without extra modules
  • Genuine Dell M0JC3 board matches Latitude 3120 chassis for direct drop-in replacement
  • Integrated graphics handle video playback and light workloads without a separate GPU
  • Rev 1 LA-K512P layout restores original port arrangement and mounting points

Specifications

BrandDell
ModelLatitude 3120
Part NumberM0JC3

Questions about this item

What standard does the on-board LPDDR4X memory follow, and what capacity does it cap at?

The board uses LPDDR4X memory soldered to the PCB, fixed at 4 GB with no expansion slots.

What physical layout and mounting pattern does the Latitude 3120 motherboard use?

It follows the Dell Gdb10 LA-K512P Rev 1 form factor designed for the Latitude 3120 chassis and screw-hole pattern.

How is the motherboard installed, and which step is often missed?

Remove the bottom case, disconnect the battery, swap the board, then reconnect the battery before closing the chassis — skipping the battery reconnect leaves the system dead on first boot.

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