Z83 Clean Cmos

1.Remove the four screws on the bottom plate.

2.Use a thin iron sheet or a hard plastic card to pry off thebottom plate.

3.The yellow part is the battery. Unplug it and keep it for a fewminutes.Plug it in and turn it on.

4.Short the battery socket two pins for more than 10 seconds.

5.After 2-3 minutes, plug in the battery and start up.