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Consistent power management for all Power System offerings from BladeCenter to Power
595.
2.4 System cooling
CEC cooling is provided by up to four air-moving devices (high-pressure, high-flow blowers)
that mount to a plenum on the rear of the CEC cage (refer to Figure 2-3 on page 40). Air is
drawn through all plugged nodes in parallel. In a hot room or under certain fault conditions,
blower speed can increase to maintain sufficient cooling. Figure 2-25 shows air flow through
the CEC.
Figure 2-25 CEC internal air flow
Four motor drive assemblies (MDAs) mount on the four air moving devices (AMD™), as
follows. A light strip LED identifies AMD and MDA.
MDA 1 & 3 are powered by a Y-cable from the BPC – Connector J10.
MDA 2 & 4 are powered by a Y-cable from the BPC – Connector J11.
Table 2-11 details the blower population
Table 2-11 Books
Processor book quantity
1 or 2 processor books
3 or more processor books
2.5 Light strips
The Power 595 server uses a front and back light strip for service. The front and rear light
strips each have redundant control modules that can receive input from either System
Controller (SC).
Air Movement Device
Air Movement Device
AMDs (4x )
AMDs (4x )
PLENUM
PLENUM
AMD
A1 and A3
A1, A2, A3, A4
Chapter 2. Architectural and technical overview
69
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