Power Bay; Figure 8. Power Bay - Dell 3250 Product Manual

Power Bay

The power bay (Figure 8) is located in the lower front of the system. Redundant power status LED
indicators are in the left portion of the power bay and three hot-swap power supply modules dock
into the three bays on the right.
The power subsystem can be configured as follows:
•
Three power supply modules installed, (2+1) redundancy
•
Two power supply modules installed, non-redundant
NOTE
The power supply modules must be populated from right to left. The left
power supply module is optional in a non-redundant configuration. If no
module is installed in the left slot, a filler panel is required for proper system
cooling.
Two power supply modules are capable of handling the worst-case power requirements for a fully
configured server system. This includes two Intel Itanium 2 processors, 16 GB of memory, three
PCI add-in cards, two hard drives, and a DVD-ROM / CD-ROM drive.
When the system is configured with three power supply modules, the hot-swap feature allows you
to replace a failed power supply module while the system is running.
The power subsystem receives AC power through two power cords. When three power supply
modules and two power cords are installed, the system supports (1+1) power cord redundancy.
This feature allows the system to be powered by two separate AC sources. In this configuration,
the system will continue to function without interruption if one of the AC sources fails.
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Power Status LEDs

Figure 8. Power Bay

Power Supply Modules
TP00295