DELL Latitude 3390 2-in-1 Motherboard Intel Core i3-8130U DDR4 G1MGM

Dell Latitude 3390 2-in-1 Motherboard

This proprietary laptop motherboard is an OEM replacement for the Latitude 3390 convertible series. It arrives with an Intel Core i3-8130U processor soldered directly to the board. The dual-core CPU operates at a 2.2 GHz base frequency and reaches a 3.4 GHz turbo frequency within a 15W TDP envelope. Integrated Intel UHD Graphics 620 handles display output without a discrete GPU.

Direct Fit for 3390 Chassis

The board matches the exact mounting points and connector layout of the original 3390 2-in-1 housing. It provides two SO-DIMM slots supporting up to 16GB of DDR4 memory for system RAM upgrades. An M.2 slot accommodates solid-state storage, while external I/O includes USB 3.1 Gen 1 Type-A and Type-C ports, HDMI 1.4, a 3.5mm combo jack, microSD reader and DC-in power. Onboard controllers manage audio and wireless modules already present in the chassis.

Sustained Load Behaviour

Under continuous workloads the soldered Core i3-8130U maintains clocks within its 15W thermal limit, relying on the laptop's existing cooling assembly. The 4MB SmartCache and 512KB L2 cache help sustain throughput for office multitasking and light content tasks. Integrated graphics performance scales with available DDR4 bandwidth, so populating both memory channels in dual-channel mode preserves frame consistency during extended sessions.