Replace failed host interface card

You replace a failed host interface card (HIC) with a new one.

About this task

Attention: Possible loss of data access – Never install a HIC in an EF300 or EF600 controller canister if that HIC was designed for another E-Series controller. In addition, both controllers and both HICs must be identical. The presence of incompatible or mismatched HICs causes the controllers to lock down when you apply power.