What Is Document Assembly?

Assembly is a Chinese word that means to put it together and then install it on a machine. In the computer field, assembly is divided into computer assembly and mechanical assembly.

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Computer assembly is simply the purchase of individual (compatible) computer accessories to assemble the entire machine. Assembly can also be called assembly, which is the last stage in the entire machinery manufacturing process and occupies a very important position in the manufacturing process. The quality of mechanical products is ultimately guaranteed by assembly work. Mechanical products are generally composed of many parts and components. According to the specified technical requirements, the process of grouping several parts into components or parts or combining the components and parts of several parts into a product is called assembling or

Before assembly

(It is best to wash your hands first or touch a metal object to discharge the static electricity on the human body itself, so as not to puncture the accessories when assembling the computer.)

Before you start to assemble the computer, you should first learn the basics of the computer, including hardware structure, daily maintenance knowledge, common fault handling, operating system and common software installation.

Assembly and installation accessories

Install your own plan, do not blindly compare, buy accessories according to actual needs.

If you choose a case, you should pay attention to the rationalization of the internal structure to facilitate installation. Second, you must pay attention to the beauty and color to match other accessories. Generally, you should choose a vertical chassis, do not use the horizontal chassis that has been eliminated, especially the power supply in the chassis. It is related to the stable operation of the entire computer, and its output power should not be less than 250W. Some processors require a 300W power supply , Should be selected according to need.

In addition to the chassis power supply, other required accessories are generally motherboards, CPUs, memory, graphics cards, sound cards (included in some sound card motherboards), hard drives, optical drives (including VCD and DVD drives), floppy drives, data cables, and signal cables Wait.

In addition to the machine accessories, tools such as screwdrivers, needle-nose pliers, and tweezers need to be prepared.

In addition, prepare the power plug for the room before installation.

Basic assembly steps

When assembling a computer, follow these steps methodically:

(1) The installation of the chassis is mainly to unpack the chassis and install the power supply in the chassis.

(2) Installing the motherboard, install the motherboard on the chassis motherboard.

(3) CPU installation, insert the required CPU into the motherboard processor socket, and install a cooling fan.

(4) For the installation of the memory module, insert the memory module into the memory slot of the motherboard.

(5) For graphics card installation, select the appropriate slot according to the graphics card bus.

(6) Sound card installation. Most of the mainstream sound cards in the market are sound cards with PCI slots.

(7) The installation of the drive is mainly for the hard disk, optical drive and floppy drive.

(8) The connection between the chassis and the motherboard, that is, various indicator lights, power switch lines. PC speaker connection, as well as hard drive, optical drive and floppy drive power and data cables.

(9) Close the chassis cover (theoretically, after installing the mainframe, you can replace the chassis cover, but in order to check for problems afterwards, it is best not to cover it first, and then cover the system after installation).

(10) Installation of input device, integration of keyboard and mouse and host.

(11) The installation of the output device, that is, the installation of the display.

(12) Re-check each wiring and prepare for testing.

(13) Power on the machine. If the monitor can display normally, it indicates that the initial installation is correct. At this time, enter the BIOS to initialize the system.

After performing the above steps, the general hardware installation has been basically completed, but to make the computer run, you need to perform the following installation steps.

(14) Partition the hard disk and format the hard disk.

(15) Install an operating system, such as Windows 98 or Windows XP.

(16) After installing the operating system, install drivers, such as graphics cards and sound cards.

(17) For 72 hours, if there is a problem with the hardware, it will be found in the 72 hours.

Assembly process

For people who do nt usually have a lot of computer experience, installing may be a difficult and mysterious thing. But in fact, as long as you install it yourself, you will find that it is still the same (of course you better first have a general understanding of the various computer accessories). After the preparations for assembling the computer are prepared, the actual operation of assembling the computer will begin.

(1) When you open the outer packaging of the case, you will see many accessories, such as screws and blanks.

(2) Then remove the case of the chassis, we can see the drive bays used to install the power supply, optical drive, and floppy drive. Many cases do not provide a dedicated hard drive bay, which can usually be mounted on a floppy drive bay.

The entire chassis of the chassis is made of metal. It includes a five-inch fixed frame (which can be installed with an optical drive and a five-inch hard disk, etc.), a three-inch fixed frame (which can be used to install a floppy drive, a three-inch hard disk, etc.), and a power supply fixed frame (which is used to fix the power supply. ), Backplane (for installing the motherboard), notch (for installing various cards), PC speakers (for simple alarm sounds), wiring (for connecting each signal indicator and switching power supply) and plastic Stepping feet, etc., as shown in Figure 11.1 (the picture here has been installed with the power supply, in fact, the newly opened chassis is not installed with the power supply).

l Drive bay. There are bezels on the front of the drive bay, which can be removed when the drive is installed. The reasonably designed plastic bezel on the front of the chassis uses a plastic barb connection to facilitate removal and reinstallation. There is also a layer of iron baffle inside the case that can be removed once.

l Blanks behind the chassis. The blank on the back of the case, that is, the rear panel bayonet, the keyboard port, mouse port, serial and parallel port, and USB interface of the motherboard must be connected to the peripherals through the holes on this blank.

l Signal cable. Below the drive bay, we can see the power and reset keys and some indicator wires from the chassis panel. In addition, there is a small speaker called PC Speaker, which is used to send out sounds and alarms. There are corresponding sockets on the motherboard.

Some cases have a small white plastic box in the lower part, which is used to install the fan of the case. The plastic box is designed with bayonets on all sides. You only need to hold the fan in the box. Some larger chassis will also reserve the second and third fans of the chassis.

Assemble the power supply

The location of the power supply in the chassis is usually located at the upper end of the rear of the chassis. There are screw holes on the four corners of the end of the power supply. They are usually trapezoidal, so pay attention to the direction when installing. If the installation is reversed, the screws cannot be fixed. You can place the power supply on the power supply bracket, align the 4 screw holes, and then tighten the screws.

When installing the power supply into the case, please note that the power supply is generally installed in the reverse direction, that is, upside down. Just align the screws on the power supply with the holes on the chassis and tighten the screws.

Tip: When tightening the screws, there is a principle, that is, do not tighten first, and wait until all screws are in place before tightening one by one. It is the same to install some other accessories, such as hard disk, optical drive, floppy drive, etc.

Assemble and install the motherboard

There are many holes on the side panel of the chassis, which are used to fix the motherboard. There are some mounting holes around and in the middle of the motherboard. These holes correspond to some round holes at the bottom of the chassis. They are used to fix the motherboard. When installing the motherboard, you must first install positioning screws in the bottom of the chassis. The screw slot is selected according to the type of the motherboard. If appropriate, one or two plastic positioning cards can be put in place of the metal screws.)

Next, lay down the chassis, install copper expansion screws on the motherboard's bottom plate (aligned with the screws on the motherboard), and place the motherboard on the bottom plate. At the same time, pay attention to align the motherboard's I / O interface with the corresponding position on the back of the chassis (the position indicated by the arrow in the figure). The peripheral interface of the ATX motherboard must be aligned with the corresponding bezel hole on the rear

Note: The keyboard port, mouse port, serial and parallel port, and USB port of the motherboard must be aligned with the holes on the back of the chassis. The motherboard must be parallel to the bottom plate and must not be stacked together, otherwise it may easily cause a short circuit. In addition, there are printed circuits of signal lines near the screw holes on the motherboard. When connecting to the chassis bottom plate, be careful not to short the motherboard to the chassis. If the motherboard mounting holes are not plated with insulation, they must be insulated with insulating gaskets. It is best to fix one or two studs on the chassis first, and generally take the position near the chassis keyboard jack (AT motherboard) or I / O port (ATX motherboard). When using a pointed plastic card, the pointed end must be on the front of the motherboard.