DELL Inspiron 7400 Intel motherboard i5-1135G7 16GB MX350 8KHFK

Dell Inspiron 7400 motherboard with i5-1135G7

This genuine Dell OEM system board integrates an 11th Gen Intel Core i5-1135G7 quad-core processor, 16GB of soldered memory and a discrete NVIDIA GeForce MX350 GPU with 2GB GDDR5. It is designed as a direct replacement for the Inspiron 7400 laptop chassis. Buyers needing a different processor, upgradeable RAM or a higher-tier graphics option cannot use this board.

Thermals and power in normal use

The on-board i5-1135G7 runs at a base power envelope suited to thin-and-light laptops, with a maximum turbo frequency of 4.20 GHz and 8MB Smart Cache. The MX350 discrete graphics draws additional power only when active, so everyday workloads stay within the original cooling solution’s capacity. No external power connectors or supplemental cooling are required beyond the factory heatsink and fan assembly.

Behaviour under sustained load

During prolonged multi-core tasks the quad-core CPU can maintain elevated clocks up to 4.20 GHz until thermal limits engage the laptop’s fan curve. The discrete GPU shares the same thermal zone, so combined CPU and GPU load raises temperatures faster than CPU-only work. The board relies entirely on the Inspiron 7400’s stock cooling; no aftermarket radiator or fan upgrade is supported by this design.