Step 4, the last picture should indicate where the speakers are. Oh, and, black bullets.

Black bullet. Installing and setting up new hard drive?

Black bullets.

Black bullet. Pulling out the RAM with tweezers better, no? Is that the only bolt there is to access RAM?

Got one black dot there.

Where are the links to replacement guides?

If water or cleaning solution or compress air is used to clean the computer, it is better to let the equipment sit out to dry in ventilated or open space.

Troubleshooting computer should always start with software first, keyboard, touchpad, screen froze, etc.

Keyboard is not responsive, shouldn’t restart the computer, then update the driver first?