LSI 3ware SAS 9750-4i4e Guía de instalación descargar pdf (Pagina 27)

Electrical Characteristics

www.lsi.com/channel/products 23

Chapter 3.

Specifications

Electrical Characteristics

The following subsections provide the power supply requirements

for the 9750 family of SATA+SAS RAID Controller Cards.

 “Power Supply Requirements for the 9750-4i, 9750-8i, 9750-

4i4e, and 9750-8e Controller Cards”

 “Power Supply Requirements for the 9750-24i4e and 9750-

16i4e Controller Cards”

Power Supply Requirements for the 9750-4i,

9750-8i, 9750-4i4e, and 9750-8e Controller Cards

All power is supplied to the controller through the PCI Express

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 provide the

necessary voltages. The following states determine the typical

current consumption of the 9750 controller card:

 State 1: During a hard reset

 State 2: During a stress test

 State 3: While sitting idle at the prompt

The supply voltages are 12 V ± 8 percent (from PCI edge connector

only) and 3.3 V ± 9 percent (from PCI edge connector only).

Table 3 lists the power supplies for the controller for each of the

three states at the different voltages.

Table 3: Power Supplies for the 9750-4i, 9750-8i,

9750-4i4e, and 9750-8e Controller Cards

PCI Edge Connector State 1 State 2 State 3

3.3 V supply 0.330 A 0.330 A 0.330 A

12 V supply 1.000 A 1.810 A 1.530 A

3.3 V auxiliary supply 0.030 A 0.030 A 0.030 A

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 47 48

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LSI 3ware SAS 9750-4i4e Guía de instalación Pagina 27