Table 1. Features and specifications (continued)Electrical input with hot-swap ac powersupplies:v Sine-wave input (47 - 63 Hz) requiredv Input voltage range automaticallyselectedv Input voltage low range:– Minimum: 100 V ac– Maximum: 127 V acv Input voltage high range:– Minimum: 200 V ac– Maximum: 240 V acv Input kilovolt-amperes (kVA)approximately:– Minimum: 0.090 kVA– Maximum: 0.700 kVAEnvironment:v Air temperature:– Server on: 10°C to 35°C (50.0°F to95.0°F); altitude: 0 to 914.4 m (3000ft). Decrease system temperatureby 1°C for every 1000-foot increasein altitude.– Server off: 5°C to 45°C (41.0°F to113.0°F); maximum altitude: 3048 m(10000 ft)– Shipment: -40°C to +60°C (-40°F to140°F); maximum altitude: 3048 m(10000 ft)v Humidity:– Server on: 20% to 80%; maximumdew point: 21°C; maximum rate ofchange 5°C per hour.– Server off: 8% to 80%; maximumdew point: 27°C– Shipment: 5% to 100%v Particulate contamination:Attention: Airborne particulates andreactive gases acting alone or incombination with other environmentalfactors such as humidity ortemperature might pose a risk to theserver. For information about the limitsfor particulates and gases, see“Particulate contamination” on page283.Hot-swap fans:Three - provide redundant cooling.Power supply:v Up to two hot-swap power supplies forredundancy support– 460-watt ac– 675-watt ac– 675-watt high-efficiency ac– 675-watt dcNote: You cannot mix 460-watt and675-watt power supplies, or high-efficiencyand non-high-efficiency power supplies, orac and dc power supplies in the server.Acoustical noise emissions:v Declared sound power, idle: 6.3 belv Declared sound power, operating: 6.5 belHeat output:Approximate heat output:v Minimum configuration: 662 Btu per hour(194 watts)v Maximum configuration: 2302 Btu perhour (675 watts)Server controls, LEDs, and connectorsThis section describes the controls, light-emitting diodes (LEDs), and connectors.Front viewThe following illustration shows the controls, connectors, and hard disk drive bayson the front of the server.Hard disk driveactivity LED (green)Hard disk drivestatus LED (amber)Hard diskdrive baysRackreleaselatchVideoconnectorUSB 1connectorUSB 2connectorOperatorinformation panelCD/DVDeject buttonCD/DVD driveactivity LEDRackreleaselatchCD/DVD drive(optical drive)Bay 15Bay 0Hard disk drive activity LED: Each hard disk drive has an activity LED. When thisLED is flashing, it indicates that the drive is in use.Hard disk drive status LED: Each hard disk drive has a status LED. When thisLED is lit, it indicates that the drive has failed. When this LED is flashing slowly(one flash per second), it indicates that the drive is being rebuilt as part of a RAIDChapter 2. Introduction 9