MFSYS35 datasheet(36/52 Pages) INTEL

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System Details

Intel® Modular Server System MFSYS25/MFSYS35 TPS

12 V bulk power is provided by the midplane. The Interposer has a power converter function for

internal needs, and also supplies the disk drive power (12 V boost may be required).

The VPD SEEPROM contains a WW (World Wide) unique address which the SCM uses to

derive a SAS WWN (World Wide Name). It also contains manufacturing data, such as serial and

version numbers for the Interposer.

Hardware monitoring on the Interposer includes a temperature sensor. The data is passed

back to the SCM via expander SES pages.

Disk drive status LEDs are driven by expander GPIO signals, and collaboration logic must be

present on the Interposer since either SCM (and either expander) can drive the status LEDs.

3.7.4.3

Drive Backplane Interface

The Interposer converts bulk 12 V from the midplane to provide +5 V and +12 V for disk drive

power. Sufficient current is supplied for sequenced spin-up of drives in groups of 4-4-2-2-2 (for

2.5-inch configurations). Supported drive types include 15K RPM SAS drives.

Signals are provided for single-color status LEDs for each disk drive.

An expander sourced I²C bus is connected to the drive backplane IDROM.

Expanders send appropriate command/signal to an optional SATA active/active MUX dongle

card on disk drive carriers to control 5 V and 12 V power.

3.8 Power Supply Module

The power supply module in Intel

® Modular Server System MFSYS25/MFSYS35 is a 1000-W

DC output supply with 110-240V AC input. Each power supply includes two fans that provide

cooling for optional hot-swap disk drives.

The power subsystem is configured as follows:

With four power supply modules installed, a fully configured system has (3+1) power

redundancy.

With three power supply modules installed, a fully configured system would not have

redundant power.

Three power supply modules are capable of handling the maximum power requirements for fully

configured platforms, which includes six compute modules, 192 GB of memory, two storage

controllers, two Ethernet switch modules, one chassis management module, and fourteen hot-

swap 2.5-inch hard disk drives or six hot-swap 3.5-inch hard disk drives.

When four power supply modules are installed, the user can replace a failed power supply

module without affecting system functionality. Power supplies have two LEDs to identify failure,

power good and AC OK.

The power subsystem receives AC power through four power cords.

Revision 1.3

Intel order number E15155-005

MFSYS35 Datasheet(PDF) 36 Page - Intel Corporation