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Fix Windows sleep wake failures by checking monitor wake, input devices, Fast Startup, wake permissions, drivers, chipset updates, USB selective suspend, and Modern Standby.

Understand PCIe 3.0, 4.0, and 5.0 bandwidth, lane counts, compatibility, GPU impact, NVMe SSD impact, and motherboard lane sharing.

Troubleshoot a desktop or laptop power button by confirming power, checking front-panel wiring, bypassing desktop PWR SW pins, and knowing laptop repair limits.

Use Event Viewer, driver rollback, memory testing, temperature checks, drive health, and Windows reset options to diagnose repeated PC crashes.

Troubleshoot a desktop PC that powers on but will not reach Windows by checking beep codes, monitor signal, RAM, boot order, repair mode, and CMOS.

Cool an overheating desktop PC by checking airflow, temperatures, fans, dust filters, heatsinks, thermal paste, fan curves, and case layout.

Decode startup beep patterns, identify RAM or graphics problems, reseat components safely, and know when to check motherboard-specific beep charts.

Fix external monitor flicker by reseating or replacing cables, setting refresh rate, updating or rolling back graphics drivers, and testing hardware.

Fix a monitor that stays black after sleep by checking cable wake behavior, monitor eco modes, Windows power settings, drivers, and aging hardware signs.

Fix unwanted mouse double-clicks by adjusting double-click speed, testing another computer, reinstalling drivers, checking debounce settings, cleaning switches, and warranty options.