LSI 25083 manual Power Supply for SAS 9240 RAID Controllers, PCI Edge Connector State

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 12V ± 8 percent (from PCI edge connector only) and 3.3V ± 9 percent (from PCI edge connector only). Table 3.10 lists the power supply for the RAID controllers for each of the three states at the different voltages.

Table 3.10 Power Supply for SAS 9240 RAID Controllers

PCI Edge Connector	State 1	State 2	State 3
3.3V supply	330mA	330mA	330mA
+12V supply	1.00A	1.81A	1.53A
3.3V auxiliary supply	30mA	30mA	30mA

3.3.4.2Operating and Non-operating Conditionsfor the SAS 9240 RAID Controllers

For the SAS 9240 RAID controllers, the operating (thermal and atmospheric) conditions are:

•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 +60 ° C.

The parameters for the non-operating (such as storage and transit) environment for these controllers are:

•Relative humidity range is 5 percent to 90 percent noncondensing.

•Temperature range: −30° C to +80° C.

3.3.4.3Power Supply Requirements for SAS 9260 RAID Controllers

All power is supplied to the SAS 9260 RAID controllers through the PCI Express 3.3V rails and the 12V rail. Onboard switching regulator circuitry

3-18	MegaRAID SAS RAID Controller Characteristics
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