Sun Microsystems, Inc.
Figure 5-4: Sun Fire X4600 Power Supply Units
Power supplies are monitored and managed by ILOM. However, PSU fans are NOT individually managed by
ILOM. Instead, they are considered part of the PSU unit. Therefore, a failure of a PSU fan is reported by ILOM as
a failure of the entire PSU unit.
The power supplies have the following features:
850 Watts high efficiency PSUs for Sun Fire X4600
950 Watts high efficiency PSUs for Sun Fire X4600 M2
Hot swappable
120/240 Volt – 50/60 Hz Autodetect
83% efficiency for the 850 Watt PSU
90% efficiency fro the 950 Watt PSU
N+N redundancy
Two cooling fans
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