Packard Bell MH4000 Power System, Server Security, Number of Power Supplies in a Configuration

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Power System

The system may be configured with two or three 330 Watt power supplies. Each supply automatically switches between these input voltage ranges:

■100-120 VAC at 50/60 Hz; 10 A maximum current

■200-240 VAC at 50/60 Hz; 5 A maximum current

■The AC input connector is a panel mounted, IEC 320/C20 type connector.

Each supply has the following:

■Two cooling fans integral with each power supply enclosure. The fan circuitry implements fan failure detection.

■Two indicators: power and alarm.

Number of Power Supplies in a Configuration

In a system, power is drawn equally from all supplies present (from two to three). A system with two power supplies can be fully loaded (all drive bays and add-in board slots filled). In a high-access system with three power supplies, the third supply gives redundancy, because the load is redistributed if one supply fails.

Server Security

The following subsections describe mechanical locks and software locks via the BIOS Setup Utility.

Mechanical Locks and Monitoring

Figure 2-8 shows the server mechanical locks and monitoring.

Features