亮起

 

 

琥珀色指示灯 — 呈琥珀色闪烁表示可能存在内部电源问题;呈

 

 

琥珀色稳定亮起表示设备可能出现故障或未正确安装(请参阅

 

 

源问题

 

 

 

 

硬盘驱动器访问指示灯

绿色指示灯 - 在计算机从硬盘驱动器读取数据或向其写入数据

 

 

时亮起。CD/DVD 驱动器等设备工作时该指示灯也会亮起。

 

 

 

 

链路完整性指示灯

背 面 板 :绿色指示灯表示以 10 Mb 的速率运行;橙色指示灯表

 

 

示以 100 Mb 的速率运行;黄色指示灯表示以 1000 Mb (1 Gb)

 

 

的速率运行

 

 

前 面 板 :存在网络连接时呈绿色稳定亮起

 

 

注 :如果在系统设置程序中禁用机载 LAN 控制器,则即使当前

 

 

有活动的网络连接,这些指示灯也会保持关闭状态。

 

 

 

 

活动指示灯

存在网络活动时在背面板上呈黄色闪烁

 

 

注 :如果在系统设置程序中禁用机载 LAN 控制器,则即使当前

 

 

有活动的网络连接,此指示灯也会保持关闭状态。

 

 

 

 

诊断指示灯

四个指示灯,位于前面板上(请参阅诊断指示灯

 

 

 

 

备用电源指示灯

AUX_PWR(位于系统板上)

 

 

 

 

 

 

 

电源

 

 

 

 

 

直流电源设备:

 

 

 

 

 

功率

750 W

 

 

 

 

散热

2559 BTU/小时

 

 

注 :散热量是根据电源设备的额定功率计算的。

 

 

 

 

电压

自动探测电源设备 — 90 V 至 265 V,频率为 50/60 Hz

 

 

 

 

备用电池

3 V CR2032 币形锂电池

 

 

 

 

 

 

 

物 理规格

 

 

 

 

 

高度

44.8 cm(17.6 英寸)

 

 

 

 

宽度

17.1 cm(6.8 英寸)

 

 

 

 

厚度

46.7 cm(18.4 英寸)

 

 

 

 

重量

17.7 kg (39 lb)

 

 

 

 

支持的显示器重量(桌面方向)

45.4 kg (100 lb)

 

 

 

 

 

 

 

环境参 数

 

 

 

 

 

温度:

 

 

 

 

 

运行时

10°至 35°C(50°至 95°F)

 

 

 

 

存放时

–40°至 65°C(–40°至 149°F)

 

 

 

 

相对湿度

20% 至 80%(非冷凝)

 

 

 

 

最大振动:

 

 

 

 

 

运行时

0.0002 G2/Hz 时为 5 Hz 至 350 Hz

 

存放时

0.001 至 0.01 G2/Hz 时为 5 Hz 至 500 Hz

 

最大撞击:

 

 

 

 

 

运行时

40 G +/- 5%,脉冲宽度为 2 msec +/- 10%(相当于 20 in/sec

 

 

[51 cm/sec])

 

 

 

 

存放时

105 G +/- 5%,脉冲宽度为 2 msec +/- 10%(相当于 50

 

 

in/sec [127 cm/sec])

 

 

 

 

海拔高度:

 

 

 

 

 

运行时

–15.2 至 3,048 m(–50 至 10,000 ft)

 

 

 

 

存放时

–15.2 至 10,668 m(–50 至 35,000 ft)

 

 

 

 

 

 

 

保养计算机

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Dell 490 manual 保养计算机, 理规格, 环境参 数

490 specifications

The Dell PowerEdge 490 is a versatile and robust server designed to meet the demands of small to medium-sized enterprises. This server combines powerful performance with advanced features, making it suitable for various applications, from data storage to running critical applications.

One of the standout features of the Dell 490 is its support for dual Intel Xeon processors. The Xeon architecture provides exceptional processing power, enabling the server to handle complex tasks and multiple workloads simultaneously. This dual-processor capability is essential for businesses that require high availability and performance in their server operations.

The PowerEdge 490 supports up to 32 GB of DDR2 SDRAM, allowing for efficient multitasking and improved data access speed. The server's memory capacity ensures that it can support applications that require substantial RAM, which is increasingly important in today's data-driven environments.

Storage options are another highlight of the Dell 490. It features multiple drive bays that can support SAS, SATA, or SCSI hard drives, allowing businesses to customize their storage solutions based on their specific needs. The server supports a variety of RAID configurations, including RAID 0, 1, 5, and 10, providing options for data redundancy and performance optimization.

In terms of connectivity, the Dell PowerEdge 490 is equipped with several PCI Express slots, enabling the addition of various expansion cards for enhanced functionality. Whether it’s improved networking capabilities or graphics processing, the options for customization are plentiful. This adaptability ensures that the server can evolve alongside the organization’s growing needs.

The Dell 490 also incorporates advanced energy-efficient technologies, such as power management features designed to optimize energy consumption. This not only reduces operational costs but also makes it a more environmentally friendly option for businesses concerned about their carbon footprint.

In summary, the Dell PowerEdge 490 is a reliable server that boasts a combination of powerful processing capabilities, flexible storage options, and expandability. With its energy-efficient design and robust features, it remains an excellent choice for businesses looking to enhance their IT infrastructure while ensuring performance and adaptability for the future.