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How to replace the System Board on a Dell ProTower Plus QBT1250

Published  November 25, 2025

This 3D experience gives you the step by step process of replacing the System Board and a Dell ProTower Plus QBT1250. The procedure will also include removing the Cable Cover, Dust Filter, Left Side Cover, Wireless Card (WLAN), Front Cover, Coin Cell Battery Cover, Coin Cell Battery, Puck Antenna Expansion Card, Drive Bay, Memory Module, Remote Power Switch Cable, Solid State Drive (SSD), Graphics Card, PCIe Expansion Board, Solid State Drive Expansion Card, Fan, External Port, Serial Port Module, Media Card Reader, Processor Fan and Heat Sink Assembly, Processor and reinstalling them.

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