Avago Technologies MegaRAID SAS 9240-4i - Manual (Page 84)

LSI Corporation
- 84 -
6Gb/s MegaRAID SAS RAID Controllers User Guide
August 2013
MegaRAID SAS RAID Controller Characteristics
Technical Specifications
 Operating ambient temperature: +55 °C. (The iBBU unit is not included in the limit as it is present remotely in the
system. You need to make sure that maximum operating ambient temperature around the LSIiBBU07 unit is 45 °C
and 55 °C for the LSIiBBU08 unit.)
NOTE The operating ambient temperature of these RAID controllers can be
raised to +60 °C, provided the airflow over the controller is at least
300 LFPM.
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)
3.3.4.23 Power Supply Requirements for the MegaRAID SAS 9285-8e RAID Controller
All power is supplied to the MegaRAID SAS 9285-8e 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 hard reset
 State 2: During a disk stress test
 State 3: 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 controller for each of the three states at the
different voltages.
NOTE The MegaRAID SAS 9285-8e RAID controller supports the LSIiBBU09
unit, but it 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 iBBU daughter card is
mounted on the controller, 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: 250 mA in +12-V current.
Table 35 Power Supply for MegaRAID SAS 9285-8e RAID Controllers
PCI Edge Connector State 1 State 2 State 3
+3.3-V supply 934 mA 901 mA 893 mA
+12-V supply 807 mA 542 mA 541 mA
+3.3-V auxiliary supply
(iBBU applications only)
14 mA 43 mA 43 mA
Total Power 12.812 W 9.621 W 9.581 W