A power surge is capable of destroying computer components, so every PC must use a surge suppressor device that absorbs extra voltage from a surge.
A surge suppressor absorbs extra voltage from a surge to protect the PC. The PSU has a built-in surge suppression for smaller surges, but you require dedicated 330-V, 2000-3500 joule surge suppressor for real safety.
Ultimate Surge
Unplug your devices during storms as if the power grid fails, then your electronics are dead