Welcome you in this new explanation will speak on how to disassemble laptop HP ProBook 450 with a way to remove all computer components continued boring detail explanation and will 
How to (replace, remove, disconnect, install, upgrade, clean, apply):
0:10 - replacement battery module
0:16 - replacement main access pannel
0:23 - replacement optical drive
0:35 - replacement hard drive/ssd
2:38 - replacement keyboard
7:37 - disconnect screen
8:09 - replacement motherboard
9:05 - replacement fan and heatsink
9:38 - replacement CPU
9:50 - clean CPU/GPU and heatsink
11:57 - applying thermal grease/paste
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Decoding computers