7USB 2.0 连接器 (2) 计算机正面的 USB 连接器用于连接不经常连接的设备(例如闪存钥匙或照相机) 或可引导的 USB 设备(有关引导至 USB 设备的详情,请参阅《用户指南》

中的系统设置程序)。

 

 

对于通常保持连接的设备(例如打印机和键盘),建议您使用背面的 USB

 

 

接器。

 

 

 

8

电源按钮

按下此按钮可以打开计算机。

 

 

注:电源按钮还可用于唤醒系统或使系统处于节能模式。有关详情,

 

 

请参阅《用户指南》中的电源管理

 

 

注意:为避免丢失数据,请勿使用电源按钮关闭计算机。而应执行关闭

 

 

操作系统操作。

 

 

 

9

电源指示灯

电源指示灯通过亮起、闪烁或稳定不变来表示不同的状态:

 

 

不亮 表示计算机已关闭。

 

 

呈绿色稳定亮起 计算机处于正常运行状态。

 

 

呈绿色闪烁 计算机处于节能模式。

 

 

呈琥珀色闪烁或呈琥珀色稳定亮起 请参阅《用户指南》中的电源管

 

 

 

 

要退出节能模式,请按电源按钮,或者使用键盘或鼠标(如果该设备已在

 

 

Windows 设备管理器中配置为唤醒设备)。有关休眠模式和退出节能模式的

 

 

详情,请参阅《用户指南》中的电源管理以获取详细信息。有关可帮助

 

 

您排除计算机故障的指示灯代码的说明,请参阅第 83 页的诊断指示灯

10

诊断指示灯 (4)

使用这些指示灯可以帮助您根据诊断代码排除计算机的故障。有关详情,请

 

 

参阅第 83 页的诊断指示灯

11

麦克风连接器

此麦克风连接器用于连接个人计算机麦克风,将语音或音乐输入至声音或电

 

 

话程序。

 

 

 

12

耳机连接器

耳机连接器用于连接耳机和大多数扬声器。

 

 

 

13

网络链路指示灯

当计算机通过网络连接发送或接收网络数据时,网络指示灯亮起。网络设备

 

 

在建立网络连接时,指示灯也会亮起。

 

 

 

快速参考指南

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Dell 390 manual

390 specifications

The Dell PowerEdge 390 is a versatile and cost-effective server designed to meet the needs of small to medium-sized businesses. Launched as part of Dell's PowerEdge lineup, the 390 offers robust performance, reliability, and management capabilities, making it an ideal solution for various workloads, from file serving to web hosting.

One of the standout features of the Dell PowerEdge 390 is its dual-socket architecture, which supports Intel Xeon processors. This architecture allows users to take advantage of multi-core processing, delivering the performance necessary for demanding applications while enhancing overall system efficiency. The server supports a range of Xeon processors, offering flexibility to choose the best fit for your workload.

Memory is another critical aspect of the Dell 390. It comes equipped with four DIMM slots, supporting a maximum of 32 GB of DDR2 RAM. The server facilitates better multitasking and offers enhanced performance through efficient memory utilization. Additionally, it supports ECC (Error-Correcting Code) memory, providing a safeguard against memory errors and improving the overall reliability of the server.

Storage options for the Dell PowerEdge 390 are ample. The server includes up to four hot-swappable SATA or SAS hard drives, allowing for significant data storage and the possibility of RAID configurations to ensure data redundancy and enhanced performance. The scalability in storage makes it suitable for a variety of applications, whether for general file storage, databases, or virtual environments.

In terms of management and deployment, the Dell 390 features the integrated Dell Remote Access Controller (iDRAC), which facilitates remote management. With iDRAC, administrators can manage the server efficiently, even from a remote location, ensuring uptime and reliable service delivery.

Connectivity options are also robust, with multiple PCIe slots available for expansion cards, enabling users to add features such as enhanced network interfaces or dedicated graphics cards based on their needs. Coupled with integrated network controllers, the server provides reliable connectivity for various networking environments.

In summary, the Dell PowerEdge 390 is a reliable server characterized by its dual-socket support, flexible storage options, efficient memory architecture, and robust management capabilities. Its combination of features makes it a strong contender for businesses looking to optimize their IT infrastructure without compromising on performance or reliability.