Power Subsystem - Intel SR6850HW4 - Server Platform - 0 MB RAM Product Manual

Platform Description

Power Subsystem

The power subsystem consists of the following:
Power supply modules
Plug-in VRM converters
The power distribution board
The power subsystem can be configured as following:
Two power supply modules installed, (1+1) redundancy at 220 VAC, 115/120/127 VAC, and
100/110 VAC
One power supply module installed, non-redundant at 100/110 VAC, 115/120/127 VAC, 220
VAC
NOTE
For low-line power environments (100 through 127VAC), verify the
configuration of the main board jumper CP_Type (J4G3). See
Information".
Power Supply Modules
The output rating of the power supply is 1570W when operated between 170VAC and 264VAC. It
is a current-sharing power supply with auto-ranging input. The power supply is about 7.7-inches
wide x 14.5-inches deep x 3.5-inches high. The power supply modules have universal AC input
with Power Factor Correction (PFC) Distributed Power Supplies (DPS).
The AC input receptacle is an IEC-320 C20 20A rated for 250VAC. The power supply has two DC
outputs: 12 V (main) and 3.3 V (standby). The 12 V main power is distributed throughout the
server and is converted locally at the point-of-load using either embedded or plug-in VRM
converters. The power supply is capable of power-safe monitoring.
In an N+ 1 configuration, the 12 VDC outputs have active (forced) current sharing. The two
externally enabled outputs have the following ratings:
+12 VDC at: 163A at HI line / 141A at LO line
+3.3 VDCSB at: 6.2A at any line
Each power supply module requires one power cord to supply AC power to the system. When two
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 the 1+1
configuration, the system continues to operate without interruption if one of the AC sources fails.
42 Intel® Server Platforms SR6850HW4 and SR6850HW4/M Product Guide
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