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Green rectangular laptop motherboard with silver CPU heatsink and black expansion slots

DELL

DELL Inspiron 5406 7506 Motherboard 3NRG2 i3-1115G4 DDR4

SKU CH-5JJ7-Y4XJ4

Replacement motherboard for Dell Inspiron 5406 and 7506 2-in-1 laptops with integrated Intel Core i3-1115G4 processor and dual DDR4 slots

  • Genuine Dell replacement for Inspiron 5406 and 7506 2-in-1 models
  • Integrated Intel Core i3-1115G4 processor runs at 3.00 GHz with 4.10 GHz turbo
  • Dual DDR4 memory slots support up to 16 GB total capacity
  • M.2 NVMe plus 2.5 SATA connectors for flexible storage expansion
  • Labeled connectors simplify display, keyboard, touchpad and power installation

Genuine Dell 5406/7506 replacement motherboard

This genuine Dell motherboard (part 3NRG2) fits Inspiron 5406 and 7506 2-in-1 laptops. It ships new with an integrated Intel Core i3-1115G4 dual-core processor running at 3.00GHz with a 4.10GHz maximum turbo. The board targets owners repairing power failures, boot issues or physical damage on these specific convertible models.

Dual-channel DDR4 up to 16GB and mixed storage

Two DDR4 SO-DIMM slots accept memory up to 3200MHz for a 16GB total capacity ceiling. Storage expansion uses one M.2 NVMe slot for solid-state drives and a 2.5-inch SATA bay for additional hard drives or SSDs. The 16GB memory limit and single NVMe lane define the upgrade boundary for multitasking workloads.

Six-layer PCB with labelled connectors for repair

A six-layer PCB with EMI shielding manages heat dissipation and signal integrity across the compact layout. Connectors for display, keyboard, touchpad and power are clearly labelled to simplify reassembly during service. The integrated design means the processor cannot be swapped and the board only fits the two listed Inspiron chassis.

Highlights

  • Genuine Dell replacement for Inspiron 5406 and 7506 2-in-1 models
  • Integrated Intel Core i3-1115G4 processor runs at 3.00 GHz with 4.10 GHz turbo
  • Dual DDR4 memory slots support up to 16 GB total capacity
  • M.2 NVMe plus 2.5 SATA connectors for flexible storage expansion
  • Labeled connectors simplify display, keyboard, touchpad and power installation

Specifications

BrandDell
ModelInspiron 5406
Part Number3NRG2

Questions about this item

Will this 3NRG2 motherboard reuse the DDR4 memory I already have in my Inspiron 5406?

Yes, the board has two DDR4 slots supporting up to 16 GB total at 3200 MHz, so existing compatible modules can be reinstalled.

How can I confirm the integrated i3-1115G4 is running at its 3.00 GHz base and 4.10 GHz turbo after installation?

Check CPU frequency in Task Manager or BIOS; the processor should show 3.00 GHz base clock and boost up to 4.10 GHz under load.

Does the 3NRG2 come with the M.2 NVMe SSD and 2.5" SATA drive, or must I supply them?

The motherboard includes the M.2 NVMe slot and 2.5" SATA bay only; storage drives are not included and must be purchased separately.

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