Expansion Slots 擴展插槽 (P.44) <<
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Jumpers 跳線 (P.45)
Learning Objectives 學習目標
• Identify motherboard components and describe their basic functions.
識別主板組件並描述其基本功能。
The motherboard also contains pins that provide additional configuration options to the computer system. These pins can be covered by a jumper device, a piece of plastic with a metallic interior that makes an electrical connection between a set of pins. The jumper allows for particular features to be enabled or disabled on the motherboard.
主板還包含用於為計算機系統提供其他配置選項的引腳。 這些針腳可以用跨接器設備覆蓋,該跳線器是具有金屬內部的塑料件,在一組針腳之間建立電連接。 跳線允許在主板上啟用或禁用特定功能。

Blue jumper block. 藍色跳線塊。
Fan Connectors 風扇連接器
Each motherboard has several connectors for fans, specifically for the CPU fan and the case fan. These connectors provide power to the fans from the motherboard (ultimately from the power supply to the main motherboard power connector, then to the fans themselves). Some newer motherboards can provide PC health status, such as the fan speed, fan power, the board temperature, and other statistics. Most case fan connectors only have three pins, but the CPU fan connector can have four pins, with one pin dedicated to speed control. The fan speed can then be increased or decreased depending on the temperature of the CPU and the motherboard. As the temperature rises, a signal is sent to increase speed control, which in turn cools down the CPU and motherboard.
每個主板都有幾個風扇連接器,特別是CPU風扇和機箱風扇。 這些連接器從主板為風扇供電(最終從電源到主板的主電源連接器,再向風扇本身供電)。 一些較新的主板可以提供PC運行狀況,例如風扇速度,風扇功率,板溫度和其他統計信息。 大多數機箱風扇連接器只有三個引腳,但是CPU風扇連接器可以具有四個引腳,其中一個引腳專用於速度控制。 然後,可以根據CPU和主板的溫度來增加或減少風扇速度。 隨著溫度的升高,將發送信號以提高速度控制,從而降低CPU和主板的溫度。

CPU fan connected to motherboard. CPU風扇已連接至主板。

Case fan connector. 機箱風扇連接器。
Case fan connector. 機箱風扇連接器。
Audio Connectors 音頻連接器
Motherboards also contain connectors for audio devices, such as auxiliary input or CD playback. Some cases feature audio jacks for headphones and microphones on the front of the case; these features require a cable that runs from the case front to the audio connector on the motherboard. Another connector on the motherboard may be for the Sony/Philips digital interchange format (SPDIF) that is connected from the motherboard to an optical SPDIF connection, known as a header. These various audio connectors look the same on the motherboard and are usually only distinguished by the labeling of the ports on the motherboard. They are typically located on one of the edges of the motherboard.
主板還包含音頻設備的接口,例如輔助輸入或CD播放。 某些機箱的正面配有耳機和麥克風的音頻插孔; 這些功能需要從機箱正面到主板上的音頻連接器的電纜。 主板上的另一個連接器可能是Sony / Philips數字交換格式(SPDIF),該連接器從主板連接到光學SPDIF連接,稱為接頭。 這些各種音頻連接器在主板上看起來相同,通常僅通過主板上端口的標記來區分。 它們通常位於主板的邊緣之一上。
Small motherboard with USB SPDIF connector (metal with purple cable) and video out connector (red with yellow cable).
小型主板,帶有USB SPDIF連接器(金屬和紫色電纜)和視頻輸出連接器(紅色和黃色電纜)。
Front-Panel Connectors 前面板連接器
The front panel connectors are shown in the image below with the various multicolored cables. The connectors allow the motherboard to send/receive information from the power switch, power LED light, hard drive activity light, reset button, and case speaker (if installed). The connectors are often grouped on the front edge of the motherboard, and tend to be small and difficult to install. Often, a technician will have to use tweezers to connect these to the plugs. These connectors are easily unplugged by accident when doing other work inside the computer, so it is a good practice to always recheck these connections before replacing the cover. For example, if the computer won’t power on, it may not be a power supply issue, it may simply be that the “power switch” front panel connector became unplugged. If the power switch isn’t completely plugged into the motherboard, the computer will not turn on.
下圖顯示了前面板連接器以及各種彩色電纜。 通過連接器,母板可以從電源開關,電源LED指示燈,硬盤驅動器活動指示燈,重置按鈕和機箱揚聲器(如果已安裝)發送/接收信息。 連接器通常分組在主板的前邊緣,並且往往很小且難以安裝。 通常,技術人員將不得不使用鑷子將其連接到插頭。 在計算機內進行其他工作時,很容易意外拔下這些連接器,因此,最好在更換護蓋之前重新檢查這些連接。 例如,如果計算機無法打開電源,則可能不是電源問題,可能僅僅是“電源開關”前面板連接器已拔出。 如果電源開關未完全插入主板,則計算機將無法打開。
Front panel connectors. 前面板連接器。
Expansion Slots 擴展插槽 (P.44) <<
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