NEC Express5800 User Manual page 209

Procedure for License Authentication
Product Key used in the procedure for license authentication should be matched with the COA label
in which the product key contained in Windows Server 2003 is written.
NOTE:
after 30 days is passed.
Installing and Setting Device Drivers
Follow these steps to install and configure the device drivers.
Installing Fibre Channel Controller Driver (N8403-018)
If you utilize Fibre Channel controller driver (N8403-018), update your system with NEC
EXPRESSBUILDER CD-ROM attached to your system.
The Fibre Channel controller driver will be installed automatically.
Execute the activation within 30 days. System may be locked
Installing the Operating System B-11