LSI Corporation
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6Gb/s MegaRAID SAS RAID Controllers User Guide
August 2012
Chapter 3: MegaRAID SAS RAID Controller Characteristics
Technical Specifications
3.3.4.31 Power Supply Requirements for the MegaRAID SAS 9286CV-8eCC RAID Controller
All power is supplied to the MegaRAID SAS 9286CV-8eCC 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.
3.3.4.32 Operating and Nonoperating Conditions for the MegaRAID SAS 9286CV-8eCC RAID Controller
The operating (thermal and atmospheric) conditions for the MegaRAID SAS 9286CV-8eCC 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.
3.3.5 Safety Characteristics
All 6Gb/s MegaRAID SAS RAID controllers meet or exceed the requirements of UL flammability rating 94 V0. Each bare
board is also marked with the supplier name or trademark, type, and UL flammability rating. For the boards installed
in a PCI Express bus slot, all voltages are lower than the SELV 42.4V limit.
Table 39 Power Supply for the MegaRAID SAS 9286CV-8eCC RAID Controller
PCI Edge Connector State 1 State 2 State 3
3.3V supply 0.864A 0.989A 0.986A
+12V supply 0.832A 0.6388A 0.633A
3.3V auxiliary supply 0.08A 0.0312A 0.040A
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.
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