Product guide
26 System Description
27MAXDATA PLATINUM 90004R Server System
Internal Chassis Features
Power Subsystem
!
WARNING
Only qualied technical personnel should access the processor, memory, and non-hot-plug I/O
subsystem areas while the system is energized as some exposed circuits exceed 240 VA and may
cause burn injury if accidentally contacted.
The power subsystem can be congured as following:
• Two power supply modules installed, (1+1) redundancy at 220 VAC
• One power supply module installed, non-redundant at 220 VAC only
• Two power supply modules installed, non-redundant for 120 VAC
The power subsystem consists of the following:
• Power supply modules
• Plug-in DC-to-DC converters
• Power pods (located adjacent to the processors on processor board)
• The power distribution board
Power Supply Modules
The power supply modules are Server System Infrastructure (SSI) compliant, universal AC input with
Power Factor Correction (PFC) Distributed Power Supplies (DPS). The power supply modules are rated
at 1200 W over an input range of 180-264 VAC, and at 700 W over an input range of 90-132 VAC.
One power supply module connected to 220 VAC is capable of handling the worst-case power
requirements for a fully congured system: four processors, 32 GB of memory, eight PCI add-in
cards, three hard disk drives, a DVD or CD drive, and an LS-240 drive.
The power supply has two DC outputs: 48 V (main) and 12 V (standby). The 48 V main power is
distributed throughout the server and is converted locally at point-of-load using either embedded or
plug-in DC-to-DC converters.
In an N+1 conguration the 48 VDC outputs have active (forced) current sharing and 12 VDCSB outputs
have passive current sharing.
The two externally enabled outputs have the following ratings:
• +48 VDC at: 24.0 A @HI line /13.5 A @LO line
• +12 VDCSB at: 4 A @any line