Top cover removal and installation - NetVista 6266, 6286
Top cover removal
Attention: Touch the bare metal frame of your system unit to dissipate the static electricity from your body. Do not touch any of the components inside the frame before you touch the frame. Do not touch any of the components that have a voltage-warning label.
Remove the screws that secure the top cover at the back of the system unit.
Hold both sides of the system unit top cover and push it forward about 25 inches.