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How to replace the Serial Port Module on a Dell ProSlimPlus QBS1250

Published  November 26, 2025

This 3D experience gives you the step by step process of replacing the Serial Port Module and a Dell ProSlimPlus QBS1250. The procedure will also include removing the Cable Cover, Dust Filter, Side Cover, Front Cover, Drive Bay, Processor Fan and Heat Sink Assembly and reinstalling them.

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