{
 "slug": "hp-probook-450-g4-power-button-board-replacement-p58",
 "title": "How to do an HP ProBook 450 G4 power button board replacement",
 "model": "hp-probook-450-g4",
 "model_name": "HP ProBook 450 G4",
 "component": "power button board",
 "manufacturer": "HP",
 "url": "https://laptoppartfinder.com/guides/hp-probook-450-g4-power-button-board-replacement-p58/",
 "api_url": "https://laptoppartfinder.com/api/guides/hp-probook-450-g4-power-button-board-replacement-p58",
 "source_url": "https://h10032.www1.hp.com/ctg/Manual/c05270979.pdf",
 "source_title": "HP Maintenance and Service Guide",
 "pages": "printed pages 33–59",
 "service_classification": null,
 "bench_tested": false,
 "markdown": "# HP ProBook 450 G4 power button board replacement\n\nSource: https://h10032.www1.hp.com/ctg/Manual/c05270979.pdf (printed pages 33–59). OEM-documented procedure; not bench-tested.\n\nHP ProBook 450 G4 Notebook PC power button board replacement. HP prints this procedure on printed page 58 of its maintenance and service guide, and the spare-part table for this part is on printed page 58.\n\n## tools and parts\n\n- Screwdrivers and a non-marking pry tool as HP lists for this procedure\n- Static-safe work surface\n- `905754-001` - Power button board assembly. Source: printed page 58.\n- `905769-001` - Power button board cable (included in Cable Kit). Source: printed page 58.\n\n## preparation\n\nSave your work and shut the computer down through the operating system, unplug AC power and every external device, and work on a clean, grounded, ESD-protected surface while sorting each screw by its original location. Handle every cable by its connector and put each one back in its own place during reassembly.\n\n1. Power the machine down. If you are unsure whether the machine is off or in Hibernation, turn the machine on, and after that shut it down through the operating system. (printed page 33).\n2. Place the machine in “Battery Safe mode” (the Battery Safe mode section is on page 32). (printed page 33).\n3. Detach every external device wired to the machine. (printed page 33).\n4. Cut the power by pulling the cord out of the wall outlet, and after that unplugging the AC adapter from the machine. (printed page 33).\n5. Place the top cover upside-down. (printed page 56).\n\n## replacement\n\n6. Take the following parts out: a. Service door (the Service door section is on page 33) b. Optical drive (the Optical drive section is on page 34) c. Hard drive (the Hard drive section is on page 36) d. Keyboard (the Keyboard section is on page 45) e. Top cover (the Top cover section is on page 52) (printed page 58).\n7. Detach the lead from the connector on the board (1). (printed page 58).\n8. Undo the Phillips PM2.0×3.0 fastener (2) that holds the board to the top cover. (printed page 58).\n9. Raise the left side of the board (3), and after that draw the board out and to the left to lift it out from under the tabs (4). (printed page 58).\n10. If you need to replace the lead, note the lead routing path through the top cover (5). (printed page 59).\n11. Fit the replacement part by working back through the printed removal steps (printed page 59).\n\n",
 "outcome": "found",
 "data_revision": "93b6f8041cad",
 "license": "Free to use with attribution: credit \"Laptop Part Finder\" and link to https://laptoppartfinder.com (or the page you used). Please do not republish or mirror the dataset in bulk without permission.",
 "attribution": "Laptop Part Finder (https://laptoppartfinder.com)",
 "terms_url": "https://laptoppartfinder.com/terms/#data-license"
}