LSI MegaRAID SAS User Manual page 86

6Gb/s MegaRAID SAS RAID Controllers User Guide
August 2012
3.3.4.29 Power Supply Requirements for the MegaRAID SAS 9286CV-8e RAID Controller
All power is supplied to the MegaRAID SAS 9286CV-8e RAID controller through the PCI Express 3.3V rails and the
12V rail. Onboard switching regulator circuitry operating from the 3.3V rails and the 12V rail provides the necessary
voltages. The following states determine the typical current consumption of the controller:
State 1: During a hard reset

State 2: During a disk stress test

State 3: While sitting idle at the DOS prompt

The supply voltages are 12V ± 8 percent (from the PCI edge connector only) and 3.3V ± 9 percent (from the PCI edge
connector only). The following table lists the power supply for the controller for each of the three states at the
different voltages.
Table 38 Power Supply for the MegaRAID SAS 9286CV-8e RAID Controller
PCI Edge Connector
3.3V supply
+12V supply
3.3V auxiliary supply
NOTE The charging circuitry for the battery pack on the optional iBBU battery-backed daughter card uses
+12V. If the iBBU daughter card is mounted on the controller, the following power consumption figures apply:
During trickle charging of the battery pack: Not applicable (no trickle charge for Li-ION).
During fast charging of the battery pack: 250mA in +12V current.
3.3.4.30 Operating and Nonoperating Conditions for the MegaRAID SAS 9286CV-8e RAID Controller
The operating (thermal and atmospheric) conditions for the MegaRAID SAS 9286CV-8e RAID controller are as follows:
Relative humidity range is 20 percent to 80 percent noncondensing.

Airflow must be at least 200 linear feet per minute (LFPM) to avoid operating the LSISAS2208 processor above the

maximum ambient temperature.
Temperature range: +10 °C to +60 °C without the battery backup unit.

Temperature range: +10 °C to +45 °C with the iBBU battery backup.

The parameters for the nonoperating (such as storage and transit) environment for the RAID controller are as follows:
Temperature range: –30 °C to +80 °C without the battery backup unit.

Temperature range: 0 °C to +45 °C with the iBBU battery backup.

State 1
593mA
598mA
0.4mA
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Chapter 3: MegaRAID SAS RAID Controller Characteristics
State 2
974mA
768mA
0.3mA
Technical Specifications
State 3
963mA
816mA
0.1mA