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GPU and coprocessor adapters
The sd350 does not support GPUs or coprocessors.
Power supplies
The n400 Enclosure supports one or two hot-plug power supplies. If two power supplies are installed they
act as a redundant pair ensuring that the enclosure remains powered even if one power supply fails or is
disconnected. These AC power supplies are 80 PLUS Platinum certified to allow for the best efficiency
values of your data center. The following table lists the supported power supply options.
Table 21. Power supply options
Part number
Feature code
00YD448
ATP6
00YD449
AT6F
The power supply options have the following features:
Full redundancy when two power supplies installed
Integrated 2500 RPM fan
80 PLUS Platinum certified
Built-in overload and surge protection
Support high-range voltage only: 200 - 240 V, 50 or 60 Hz
Current maximums: 7.08 A (1200 W power supply), 9.48 A (1600 W power supply)
The chassis supports 4 servers with either power supply, however the use of 1200 W power supplies limits
which processors and memory can be installed in each of the servers:
1600 W power supplies:
4 servers
All supported processor and memory configurations
1200 W power supplies:
4 servers
2 processors up to 85 W TDP rating (up to E5-2630 v4)
Up to 4 DIMMs per server (2 DIMMs per processor)
Cooling
The n400 Enclosure has 5 easy-swap fans which are used to cool all four servers and all hard drives. In
addition, each power supply has its own integrated fan.
The five system fans have the following specifications:
60mm x 38mm
Easy-swap (non-hot-swap) - no cables to disconnect
Accessible via a removable panel in the top cover of the enclosure
Tachometer output
Pulse width modulation control
Note: If any fan fails and the ambient temperature is above 27 °C, system performance may be degraded.
Such performance throttling will be logged in the event log.
Integrated virtualization
The sd350 offers an optional SATADOM (SATA Disk on Module) offering for operating systems. See the
Internal storage
and
Internal drive options
Lenovo ThinkServer sd350
Description
1200W power supply for ThinkServer n400 Enclosure
1600W power supply for ThinkServer n400 Enclosure
sections for information.
Model where used
B2x
C2x, EAx
23
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