Preparation For Installation - NEC Express5800 series User Manual

9-4 Upgrading Your Server

PREPARATION FOR INSTALLATION

To install or remove an optional device or hard disk drive installed in the CPU blade, you should
first remove the rear fan unit of the Blade Assembly Unit (for an optional unit) or the front fan unit
(for a hard disk drive). See "Hardware Setup" descried earlier for details.
IMPORTANT:
Do not remove at the same time both the front and rear fan units.
To reduce the risk of personal injury from electric shock hazards, do
not install the CPU blade and power supply yourself. Refer to the
qualified service engineer for maintenance, upgrades, and servicing
the CPU blade and power supply.