Chassis/motherboard connection tips Sharing

Chassis connectors and Keys

Replace the motherboard, in addition to unplug the hardware products installed on the motherboard, but also to estimate the various connectors and line. This connection is more complex, I am afraid that the chassis front panel of some connectors, usually some of the power connection and connectors are relatively easy to install. So today, the author in recent days installed a computer as an example, a brief explanation of some chassis front connector installation methods and skills.

Connection skills for USB cable and audio interface

Connection skills for USB cable and audio interface

In general, the chassis we can buy now provides front-end USB and front-end audio as well as switch-key functions. And the need for us to connect including switch machine button, hard drive indicator, audio interface and USB cable. It is easy to install the audio and USB cable, is usually modular design, and switch machine buttons because each motherboard manufacturer design is different, so there will be some difficulties.

Various connectors on the chassis

Connection of USB front line

In the current motherboard of the South Bridge chip, the expansion of 10 sets of USB support has been very common. In addition to the 4-6 USB interfaces for I/O design, there are usually 4-6 USB extension interfaces designed on the motherboard. The following figure is the two sets of 4 USB expansion sockets available on the motherboard.

USB extension Support

If you look closely you will see a total of 10 pins on the USB connection socket, but one is free. The chassis provides the plug is also 10 jacks, but one is blocked, this kind of design can help the user to connect correctly, and the wrong connection method is not properly recognized, will remind the user can not install.

Anti-stick interface

Connection Effect Diagram

Connection of front audio cable

The chassis currently offers two audio connectors, AC ' 97 and HD Audio, and modular design, which is very easy to install. However, in the Vista system "inspired", the majority of the motherboard's sound card is supporting HD audio, so we connect the HD part of the plug on it.

Audio plugs

Similar to the USB socket, the front audio socket is also 10 pin design and a blank design, as long as the user can correctly identify the direction, you can easily install the plug.

Motherboard front audio Plug and connection icon

Connection effect

Summary: You can see that the USB and front audio connectors using a modular plug, as well as the anti-dull design, connected to the basic no difficulty. As long as the user can correctly distinguish between the location of the free pins, can be very easy to complete the installation.

Connection of key plug of Switch machine

Connection of key plug of Switch machine

Switch Machine button can be said to be more complicated a headache of a plug. I still remember the first time I installed these lines of the scene, in addition to the audio line to be divided into the left and right channels and mic interface, the most difficult to install on the number of Switch machine button This group of plugs.

Switch machine keys This usually includes the following four sets of functions: Power-on key (Power SW), restart key (reset SW), hard drive indicator (h.d.d.led), LED.

Switch machine key Group connection plug

These connectors need to be connected individually to the corresponding sockets on the motherboard.

Wiring section of the front panel of the motherboard (F_panel)

Because the motherboard front panel switch machine socket manufacturer definition will be different, so users must find the definition of this part of the pin before installation, usually the motherboard specifications or motherboard on the PCB will have instructions. Here need to specifically note that the hard drive light (HDD LED) is not bright, if you hear the hard drive in operation but the lamp does not light, just plug the plugs back. Other plugs are similar to the insertion method, if not normal work, reverse take it.

The PIN definition of the front socket on the PCB of the motherboard

To compare the pin definitions above, we will install the connectors as follows.

Actual installation Effect Drawing

It's also worth noting that Asus ' motherboard front connectors are completely different from other home definitions, and they are a self-contained system. However, Asus motherboards usually offer "q-connector" Connection sockets for easy user connections. In addition, MSI part of high-end motherboards also provide this type of socket, mainly allows users to plug a variety of plugs to connect the module first, so that users more convenient to connect with the motherboard.

Connectivity plug display by MSI and ASUS

Full Text summary:

Although the above connection pin definition is complex, and even more wiring, but after one by one clear, we can from simple to complicated, easy to solve this problem. However, some of the connection modules provided by the motherboard manufacturers can also be easily installed by users. But the author finally still have to specifically explain, must first install a variety of connectors, and then the motherboard with screws fixed in the chassis. Conversely, once the motherboard is fixed in the chassis, it is no doubt difficult to connect the various threads.

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