Avago Technologies MegaRAID SAS 9240-4i - Manual (Page 76)

LSI Corporation
- 76 -
6Gb/s MegaRAID SAS RAID Controllers User Guide
August 2013
MegaRAID SAS RAID Controller Characteristics
Technical Specifications
3.3.4.7 Power Supply Requirements for the MegaRAID SAS 9261-8i RAID Controller
All power is supplied to the MegaRAID SAS 9261-8i RAID controller through the PCIe 3.3-V rails and the 12-V rail.
Onboard switching regulator circuitry operating from the 3.3-V rails and the 12-V rail provides the necessary voltages.
The following states determine the typical current consumption of the controller:
 State 1: During a drive stress test
 State 2: While sitting idle at the DOS prompt
The supply voltages are 12 V ± 8 percent (from the PCI edge connector only) and 3.3 V ± 9 percent (from the PCI edge
connector only). The following table lists the power supply for the RAID controller for each of the three states at the
different voltages.
NOTE The MegaRAID SAS 9261-8i RAID controller supports the LSIiBBU07
unit and the LSIiBBU08 unit, but the controller does not support
Cache Vault modules.
NOTE The charging circuitry for the battery pack on the optional iBBU
battery-backed daughter card uses +12 V. If the BBU daughter card is
mounted, the following power consumption figures apply in addition
to the +12-V consumption figures listed in the previous table:
 During trickle charging of the battery pack: Not applicable
(no trickle charge for Li-ION).
 During fast charging of the battery pack: 230 mA in +12-V current.
3.3.4.8 Operating and Nonoperating Conditions for the MegaRAID SAS 9261-8i RAID Controller
For the MegaRAID SAS 9261-8i RAID controller, the operating (thermal and atmospheric) conditions 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 LSISAS2108 processor above the
maximum ambient temperature.
 Temperature range:
— +10 °C to +55 °C (without BBU)
— +10 °C to +45 °C (with BBU)
NOTE The MegaRAID SAS 9261-8i RAID controller supports the LSIiBBU07
unit and the LSIiBBU08 unit, but the controller does not support the
Cache Vault modules.
The parameters for the nonoperating (such as storage and transit) environment for these controllers are as follows:
 Relative humidity range is 5 percent to 90 percent noncondensing.
 Temperature range:
— –40 °C to +70 °C (without BBU)
— +0 °C to +45 °C (with BBU)
Table 27 Power Supply for the MegaRAID SAS 9261-8i RAID Controller
PCI Edge Connector State 1 State 2
+3.3-V supply 1060 mA 1083 mA
+12-V supply 1416 mA 803 mA
+3.3-V auxiliary supply
(iBBU applications only)
48 mA 33 mA
Total power 20.65 W 13.32 W