84 Operating Manual BX900 S1
Hot-plug components
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To achieve optimum cooling of the system unit, observe the following sequence
when filling the server blade slots:
1 - 2 - 3 - 4 - 17 - 9 -10 - 11 - 12 - 18 - 5 - 6 - 7 - 8 - 13 - 14 - 15 - 16. All empty
server blade slots must be fitted with dummy modules.
I The maximum number of installable server blades depends on the
number of power supply units and fan modules fitted in the system unit,
the available mains voltage and the redundant power supply
requirements, see "Fitting rules for power supply units and fan modules"
on page 127.
Different models and configurations of server blades can be combined in the
system unit.
Installing a server blade
V CAUTION!
● Make sure you observe the safety notes and the information on
handling electrostatic-sensitive devices in the section "Modules with
Electrostatic-Sensitive Devices" on page 34.
● Beware of the energy hazard at the midplane contacts. A short circuit
on these contacts may damage the system.
● The server blade boots automatically after installation in the
system unit.
When you install a server blade in an active system unit, the server
blade automatically performs a Power-On Self-Test (POST) and then
switches itself off.
If the system unit is switched off when you install the server blade, the
automatic POST is performed immediately after you switch on the
system unit.
● Any unused server blade slots must be fitted with dummy modules to
comply with electromagnetic compatibility (EMC) regulations and to
ensure sufficient cooling of the system components.
Installing a single height / single width Blade
The following describes how to install a BX920 S1 server blade. Storage blades
are installed in the same way.