PC Hardlock while doing leves in Mor Dhona

Time: around 9:35 AM PST
Frequency: once
World name: Cactaur
Character name: Tashisha Tasha
NPC name: N/A
Monster name: Winter Nix
Class/Level: Black Mage Level 48
Party or solo: party with chocobo only
In-game time: Unknown
Area and coordinates: Mor Dhona 23, 11
Steps:
1. Target leve monster
2. cast Thunder III
3. cast Fire III
4. Hardlock just as Fire III starts to go off

Connection Specs
- Type of internet connection/provider: Comcast and xifinity
- Modem maker/model number: motorola/SB6120

PC Specs
-=-=-=-=- System Information -=-=-=-=-

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Laptop Model Name:N/A Desktop
Laptop Model Number:N/A Desktop

Gamepad Manufacturer:N/A Mouse/Keyboard
Gamepad Model Name:N/A Mouse/Keyboard
Gamepad Part Number:N/A Mouse/Keyboard

Browser Information
- Name and version of the browser currently in-use: Google Chrome 38.0.2125.104

It will be something to do with the PC and its configuration, user mode software cannot cause hard locks.