Location: Negul Neshai
Obtained: Interact with the arm sticking out of the snow during the On the Mountain of Mayhem main mission.
Take AI Chip
Take the AI Chip from the arm.
Pick Up Dynamite
Follow the objective south to obtain the dynamite. To reach it, you will need to use the rubble on the side of the cliff.
Place Dynamite
Place the dynamite at the entrance of the sealed cave.
Shoot Dynamite
Well just shoot it already!
Discover Source of Madness
Head into the cave and defeat the Shot-Goths. Pick up the Captain Dyer ECHO Log 1 dropped by the enemies. Afterwards, head to higher ground to slam down on the breakable wooden planks. At the bottom of the shaft, work your way forward until you reach the dead end. Melee the frozen guy’s arm to obtain the second ECHO Log. After the dialog, break the barricade to continue forward.
Kill Shot-Goths
Defeat the enemies.
Pick up ECHO Log
Pick up the third ECHO Log at the base of the crystal in the center of the room.
Destroy Crystal
Place the chip in the console then kill Captain Dyer. Next you’ll have to overcharge the laser by pressing the button on the console to complete the quest.