Gigabyte SB93 Quick Start Manual page 7

Voltage Selection Switch / 電壓設定開關
Select the correct voltage setting for your local area voltage before the computer
system is plug to the power source.
請在接上電源前先確定是否已將電壓開關設定為 110V。
Installing the System / 系統設備安裝
V.
1. Unscrew the rear casing and push the upper casing toward the front panel, then
loose the hook to remove the front panel.
卸下機殼後方的 3 顆螺絲，將上蓋朝箭頭方向推出，拉起箭頭處即可拆除面板。
WARNING: Select incorrect setting will cause
the Power supply failure!
警告：若開關設定錯誤，可能導致電源供應器毀損！