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Green Dell Vostro 5301 laptop motherboard with silver processor and graphics chips

DELL

DELL Vostro 5301 Motherboard i5-1135G7 MX350 55KG3

SKU CH-4G3Y-WQVEP

Replacement system board for Dell Vostro 5301 laptops with discrete Nvidia MX350 graphics and on-board quad-core i5-1135G7 CPU reaching 4.2 GHz turbo

  • Genuine Dell OEM replacement board for Vostro 5301 laptops
  • On-board quad-core i5-1135G7 processor reaches 4.2 GHz max turbo
  • Discrete Nvidia GeForce MX350 graphics with 2 GB dedicated memory
  • Direct fit for Vostro 5301 models equipped with MX350 graphics
  • Dell part number 55KG3 ensures exact component match

Dell Vostro 5301 Replacement Board

This genuine Dell OEM motherboard is built specifically for the Vostro 5301 laptop equipped with discrete Nvidia GeForce MX350 graphics. It arrives with the quad-core Intel i5-1135G7 processor already soldered on, reaching a maximum turbo frequency of 4.2GHz. The board includes 2GB of dedicated video memory for the MX350 GPU. It is intended for repair technicians or owners restoring a Vostro 5301 that originally shipped with the discrete graphics option.

Discrete Graphics Upgrade Path

This system board replaces a failed unit in a Vostro 5301 that already uses the Nvidia MX350 discrete graphics subsystem. It is not a direct replacement for models that rely solely on integrated Intel graphics, as the board layout and cooling provisions differ. The jump is worth it only when the original motherboard has failed and the laptop chassis, display assembly and cooling solution are confirmed compatible with the discrete graphics configuration. Verify the Dell part number 55KG3 against your service tag before ordering.

Installation Notes

Installation requires full laptop disassembly, including removal of the display assembly, keyboard deck, heat pipes and all internal cabling. The on-board CPU and GPU eliminate socket handling but demand careful thermal paste application and proper torque sequence on the heat-sink screws. Common issues include mismatched wireless antenna routing, forgotten display cable connectors and using a heatsink designed for integrated-graphics models, which leaves the MX350 die uncontacted. Take photos at each step to ensure correct reassembly.

商品特色

  • Genuine Dell OEM replacement board for Vostro 5301 laptops
  • On-board quad-core i5-1135G7 processor reaches 4.2 GHz max turbo
  • Discrete Nvidia GeForce MX350 graphics with 2 GB dedicated memory
  • Direct fit for Vostro 5301 models equipped with MX350 graphics
  • Dell part number 55KG3 ensures exact component match

商品規格

BrandDELL

商品問答

Will the 55KG3 board fit my Vostro 5301 chassis?

The 55KG3 is the Dell service part for the Vostro 5301 with discrete MX350 graphics; it matches the original mounting points and connector layout for that chassis.

How do I install the 55KG3 motherboard, and what step is often missed?

Remove the battery first, swap the board, then reapply thermal paste to the i5-1135G7 and MX350 dies; forgetting fresh paste causes overheating.

What maintenance will the 55KG3 board need later?

Plan to replace the thermal paste on the i5-1135G7 and MX350 every couple of years and clean the fan vents to keep the 4.2 GHz boost stable.

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