LSI Logic megaraid sas 9260-8i kit [73/92] Electrical characteristics and environmental conditions

LSI Corporation

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6Gb/s MegaRAID SAS RAID Controllers User Guide

August 2013

MegaRAID SAS RAID Controller Characteristics

Technical Specifications

3.3.4 Electrical Characteristics and Environmental Conditions

This subsection provides the power supply requirements, and the operating (thermal and atmospheric) and

non-operating conditions, for the 6Gb/s MegaRAID SAS RAID controllers.

3.3.4.1 Power Supply Requirements for MegaRAID SAS 9240 RAID Controllers

All power is supplied to the MegaRAID SAS 9240-4i RAID controller and the MegaRAID SAS 9240-8i 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 hard reset

 State 2: During a drive 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 RAID controllers for each of the three states at the

different voltages.

3.3.4.2 Operating and Nonoperating Conditions for MegaRAID SAS 9240 RAID Controllers

For the MegaRAID SAS 9240 RAID controllers, 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 LSISAS2008 processor above the

maximum ambient temperature.

 Temperature range: +10 °C to +55 °C

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

3.3.4.3 Power Supply Requirements for MegaRAID SAS 9260 RAID Controllers

All power is supplied to the MegaRAID SAS 9260-4i, SAS 9260-8i, SAS 9260CV-4i, SAS 9260CV-8i, and SAS 9260DE-8i

RAID controllers 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 drive stress test

 State 3: While sitting idle at the DOS prompt

Table 24 Power Supply for the MegaRAID SAS 9240 RAID Controllers

PCI Edge Connector State 1 State 2 State 3

+3.3-V supply N/A N/A N/A

+12-V supply 350 mA 520 mA 470 mA

+3.3-V auxiliary supply N/A N/A N/A

Total Power 4.2 W 6.24 W 5.64 W