: Once the motherboard is out, you can unscrew the heatsink to clean the fan and re-apply thermal paste to the CPU/GPU. Service Summary Table Accessibility Tools Needed Battery None (Slide Latches) RAM / SSD Phillips Screwdriver Keyboard Phillips + Prying Tool CPU Fan Full Disassembly
HP ProBook 450 G0 Notebook PC HP ProBook 455 G1 ... - iFixit hp probook 450 g0 disassembly
Before starting the disassembly process, make sure you have a clean and stable workspace. It is recommended to work on a flat, static-free surface, such as a wooden table or a anti-static mat. Ground yourself by touching a metal object or wearing an anti-static wrist strap to prevent static electricity damage to the laptop's components. : Once the motherboard is out, you can