There is a Dormant SIVA Cluster to be found in Giant's Husk. They can be collected during The Iron Tomb.
Dormant SIVA Cluster: Clovis Bray 1.2[edit]
This Dormant SIVA Custer can be found during the story mission The Iron Tomb. Go through the mission until you reach the reactor inside the ship. Head across the room to the right-hand side of it.
Jump along the turbines and over to the opposite side of the room. Go up the stairs from the lower platform. Go up the stairs.
At the base of the pillar, just in front of you, is the Dormant SIVA Cluster.
