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DELL

Dell Inspiron 3480 AIO Motherboard RJJKJ i5-8265U 1.6 GHz

SKU CH-HRF5-D2AAZ

A genuine Dell OEM motherboard for the Inspiron 3480 all-in-one with an integrated Intel Core i5-8265U quad-core processor at 1.6 GHz and Intel UHD Graphics 620

  • Compatible brandsFor Dell
  • Supported modelsFor Dell Inspiron 3480
  • Product colorGreen
  • Genuine Dell OEM board restores original Inspiron 3480 AIO function
  • Integrated Intel Core i5-8265U quad-core processor runs at 1.6 GHz with Turbo up to 3.9 GHz
  • Intel UHD Graphics 620 delivers clear visuals for everyday tasks
  • Supports DDR4 SO-DIMM memory up to 32 GB for smooth multitasking
  • NVMe and SATA storage compatibility keeps upgrade options open

Direct replacement for Inspiron 3480 AIO

This genuine Dell OEM motherboard carries part number RJJKJ and integrates an Intel Core i5-8265U quad-core processor running at 1.6 GHz with turbo up to 3.9 GHz. It is built to factory specifications so the all-in-one desktop regains its original fit, function and firmware handshake without modification.

Integrated UHD Graphics 620 handles display output

The on-board Intel UHD Graphics 620 drives the built-in panel without a discrete GPU, keeping heat and power draw low during everyday multitasking. With the processor soldered to the board, the thermal solution remains the one Dell designed for the 3480 chassis, preserving the acoustic profile the system shipped with.

Green PCB fits the existing mounting points

The board matches the original layout, so standoffs, I/O cut-outs and internal connectors line up without adapter cables. Memory slots accept DDR4 SO-DIMMs up to 32 GB, while storage interfaces include NVMe/PCIe and SATA for the drives the chassis already accommodates. Buyers needing a different processor generation or a discrete graphics slot cannot use this part.

How it compares

Measured against everything we stock in Laptop Repair Parts, at today’s prices. Recalculated every night.

Price $47.99
Pricier than about 70% of the 1,151 comparable items (median $33.99).

Specifications

Product
Brand nameDell
Model nameInspiron 3480
Part numberRJJKJ
Product colorGreen
Compatibility
Compatible brandsFor Dell
Supported modelsFor Dell Inspiron 3480

Questions about this item

How do I install the RJJKJ motherboard in my Inspiron 3480 AIO and which step do people often miss?

Remove the rear cover, disconnect all cables, swap the board, then reapply thermal paste on the integrated i5-8265U before reassembling; skipping the paste causes overheating.

What maintenance or replacement will the RJJKJ board need later?

The soldered i5-8265U cannot be upgraded; plan to replace the CMOS battery every few years and clean dust from the heatsink to keep the UHD Graphics 620 cool.

What limit appears first under sustained load on this board?

The 1.6 GHz base clock holds until thermals force the i5-8265U down from its 3.9 GHz turbo, so the cooling solution is the first bottleneck.

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