检查打 印 机电 缆的连接 —

请参阅打印机说明文件以获得电缆连接信息。

确保打印机电缆已稳固地连接至打印机和计算机。

检 测 电源插座 — 使用其它设备(例如台灯)检测电源插座,确保电源插座能够正常工作。

验 证 Windows 能够 识 别打 印 机 —

1.依次单击“Start”(开始 )按钮、“Control Panel”( 控 制 面板 )以及“Printers and Other Hardware”( 打 印 机和 其它硬 件 )

2.单击“View installed printers or fax printers”(查看 安装的 打 印 机 或传真打 印 机 )

如果其中列出了打印机,请在打印机图标上单击鼠标右键。

3.单击“Properties”(属性 ),并单击“Ports”( 端 口 )选项卡。对于并行打印机,请确保“Print to the following port(s):”(打 印 到 下 列 端 口:)的设置为“LPT1 (Printer Port)”(LPT1: 打 印机 端 口 )。对于 USB 打印机,请确保“Print to the following port(s):”( 打 印 到 下 列 端 口:)的设置为“USB”

重 新 安装打 印 机驱 动程 序 — 有关说明,请参阅打印机说明文件

串行或并行设备问题

请在完成以下各项检查时填写诊断程序核对表

警 告 :开始执行 本节中 的 任 何步骤之 前 ,请 阅 读并遵 循《产品 信 息 指 南》中 的 安 全说明 。

注 :如果打印机出现问题,请参阅打印机问题

检查选 项 设置 — 有关建议的设置,请参阅设备说明文件。然后进入系统设置程序,并转到“Integrated Devices”( 集 成设 备)选项设置(请参阅系统设置程 序)。请确保“Serial Port”( 串 行 端口 )的设置或“Parallel Port”(并行 端 口 )的设置与建议的设置相匹配。

运行 Dell 诊断程 序 — 请参阅 Dell 诊断程序

声音和扬声器问题

请在完成以下各项检查时填写诊断程序核对表

警 告 :开始执行 本节中 的 任 何步骤之 前 ,请 阅 读并遵 循《产品 信 息 指 南》中 的 安 全说明 。

扬声器没有声音

注 :某些 MP3 播放器中的音量控制将代替 Windows 音量设置。如果您在收听 MP3 歌曲,请确保没有调低或关闭播放器音量。

检查扬声器电 缆的连接 — 确保扬声器已根据扬声器附带的安装图进行连接。如果您购买了声卡,请确保扬声器已连接至声卡。

确保 次 低 音扬声器 和扬声器 已 打开 — 请参阅随扬声器提供的安装图。如果扬声器带有音量控制,请调节音量、低音或高音控制以消除失真。

调 节 Windows 音 量 控 制 — 单击或双击屏幕右下角的扬声器图标。确保音量已经调高并且声音没有被静音。

将耳 机从耳 机连接 器 中断开 — 将耳机连接至计算机前面板上的耳机连接器时,系统将自动禁用扬声器的声音。

检 测 电源插座 — 使用其它设备(例如台灯)检测电源插座,确保电源插座能够正常工作。

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Dell 490 manual 串行或并行设备问题, 声音和扬声器问题, 扬声器没有声音

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.