LSI MegaRAID(R) 6 Gb/s SAS RAID Controllers 25083 Manual Do Utilizador

 

•

Temperature range: +

10 ° C to +60 ° C without battery backup unit

•

Temperature range: +10

  ° C to +44.5  ° C with iBBU battery backup

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

•

Temperature range: 

−30° C to +80° C without the battery backup unit 

•

Temperature range: 0

° C to +45° C with the battery backup unit

All power is supplied to the SAS 9261 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 provide 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 12V ± 8 percent (from PCI edge connector only) 
and 3.3V ± 9 percent (from PCI edge connector only). 

 lists 

the power supply for the RAID controller for each of the three states at 
the different voltages.

Note:

+12V is used in the charging circuitry for the battery pack 
on the optional iBBU battery-backed daughter card. If the 
BBU daughter card is mounted, the following power 
consumption figures apply:

–

During trickle charging of the battery pack: N/A (no 
trickle charge for Li-ION)

3.3V supply

330mA

330mA

330mA

+12V supply

1.00A

1.81A

1.53A

3.3V auxiliary supply

30mA

30mA

30mA