Where is the desktop computer network card? Please specify that, thanks

First of all, this is not necessarily a problem with the network card, first your network card is in**. Turn on the console. If your network card is standalone.

Then your network card is on the PCI slot, a green board. If it is an integrated NIC. Then you can look at the back of the case.

The place to plug in the network cable is it. If you want to pull out the network card, be sure to turn it off. Power.

Let's talk about your 678 again, it's easy to know if it's your own problem or the problem of telecommunications. Look at the cat, see if the signal light on the side of the cat's power light is always on. If it's a flash, it's no signal.

Steady brightness is normal. If there is no signal, you can only call 10,000 to get the telecom people out. If it's ever-bright.

That is, the signal is normal, and then look at the output light. That is, whether the light connected to the computer is on. Bright is normal, not bright is disconnected.

It should be that you didn't plug it in somewhere. Well, maybe it's not clear at this point. If it still doesn't work.

You can add me.

Generally, the computer uses an integrated network card, if there is no special purpose, it is not easy to plug in the network card behind the network card is the place where the network card is integrated, if you are independent, the circuit board that is plugged in the network cable is the network card.

Let me tell you, do you know what the network cable is connected to, there is a "convex" shape of the port is located in the network card, but you must know that some of the network cards are integrated on the motherboard, and some are plugged into it, so if you look for the network card, just look for the "convex" shaped port, thank you, over.

678 error: It is recommended to test whether your network cable is normal, whether the cat is normal, network card detection, right-click attribute my computer, point hardware, point device management, see if there is a network adapter, if not, the network card is broken, if there is, there is an exclamation mark on it, that is, the driver is not installed!

The network card is behind the desktop, and the network card connected to your network cable is the network card.

The desktop computer network card is then behind the host, an irregular square port.

There is a network card on the motherboard of the computer. There are two types of NICs: integrated NICs and standalone NICs.

1. Integrated network card: integrated on the motherboard, the corresponding place of the network cable socket on the back of the host is the network decoding chip (Ethernet controller) integrated on the motherboard. The integrated NIC is not removable, and if it is damaged, it can only be replaced with a separate NIC alternatively.

2. Independent network card: It is a separate board card, which is inserted into the motherboard slot, and can be removed and replaced with a new independent network card after damage.

3. Whether it is an integrated network card or an independent network card, its location can be found according to the corresponding position of the network cable jack behind the host.

A desktop computer network card is plugged into or integrated into the motherboard. If the integrated network card fails, the plug-in network card must be replaced, and the network card PCI slot is generally left on the motherboard. The network card is loose and can open the chassis, the PCI slot is generally under the graphics card, and the network card slot is also the shortest, and the best way to identify it is that the network cable is connected to the network card.

Every computer on the network must have a unique MAC address. No two NICs have the same address. This is because the Institute of Electrical and Electronics Engineers (IEEE) is responsible for assigning a unique MAC address to network interface controller (network card) vendors.

Simply put, a network card is a device that connects a computer to an external local area network. If you want to connect the computer with the external network, you need to insert a network interface board on the host of the computer, only the network interface board can connect the computer with the network, and this network interface version is called the network recognizer, or it can also be called the network card.

The network card can be said to be an important component of the network in computer work, which can complete the physical connection of the LAN transmission medium, as well as match the signal. At the same time, it can encapsulate and deseal data, and can also manage links, complete encoding and decoding, and cache data.

In the pop-up dialog box, enter the cmd command and click the OK button.

On the cmd page, enter the systeminfo command and press the Enter key on the keyboard.

After the system is loaded, you can see the NIC information.

Method Step 2

1 3 On the operating system desktop, right-click on the computer icon and select the Manage option to enter.

2 3 Enter the computer management interface and click on the Device Manager option on the left to enter.

3 3Finally, double-click the network adapter in the right list to see the network card information.

In addition to the independent network card, the network card is not an original, but a network interface, lightning protection chip, network card chip, and related circuits and the general name of the original. The lightning protection chip is a black plastic cuboid on the motherboard, also known as the bridge, it is very easy to recognize, the network card chip of the notebook is generally not far from the network interface, but some desktops may be farther away, a small chip, the model is different, but there is a 25MHz crystal oscillator on the side.

It's the one that's plugged in, and the back of the desktop is held on top or left or right.

Integrated network card, on the motherboard. Most of them are next to LAN ports.

The location where you plug the network cable is the network card.