Hi Teisha, your paragraph presents a solid overview of common PSU issues and diagnostic methods. I like how your passage highlights both environmental and internal factors that can cause PSU failure—like lightning strikes, power surges, overheating from fan issues, or even just dust buildup—all of which are often overlooked until a system begins misbehaving. The inclusion of both startup failure and memory errors paints a broader picture of how PSU problems can masquerade as unrelated system glitches.