Beginner's note: how to select and upgrade a built-in wireless network card

The previous article introduced the basic introduction of the built-in wireless network card. I think you have some knowledge about some common types of built-in wireless NICs. Next we will talk about the selection and upgrade of the built-in wireless network card. Hope to help you.

◆ How to select and upgrade a built-in wireless network card

If conditions permit, you can choose a laptop with a built-in wireless network card, which is more convenient to use. Of course, laptops with built-in wireless NICs are more expensive than laptops without built-in wireless NICs. If you pay more attention to the price, you can also consider a laptop without a built-in wireless network card. You can also upgrade it to a wireless system using the following solution.

① Many low-cost laptops do not have a built-in wireless network card, but they also have Mini-PCI or Mini PCI-Express slots, an antenna with an antenna or antenna reserved for the wireless network adapter is generally located on the border of the notebook LCD screen or near the screen roller), and some have wireless switches or indicators, this type of product can be easily upgraded to a wireless notebook by selecting a Mini-PCI or Mini PCI-Express wireless Nic.

You can upgrade the wireless network card at various speeds as needed based on the notebook interface.

② If you are not satisfied with the wireless performance of a laptop with a built-in wireless Nic, or you need to match the built-in wireless NIC with the wireless network speed, you can also choose to upgrade a wireless NIC with better performance and higher transmission rate. For example, to upgrade an 802.11b wireless network adapter to 802.11 GB, to upgrade an 802.11g wireless network adapter to 802.11n, such as 3945ABG to 4965AGN) or 802.11g +, MIMO. At present, the price difference between the 802.11g/n wireless network card sold on the market and the prices of the Chinese and the non-Chinese version. It is not very expensive. It is generally about 30-300 yuan, the new Intel 4965AGN 802.11n wireless network card price is about-yuan ).

③ The wireless network card with interfaces such as USB or PCMCIA is upgraded to a laptop without a built-in wireless network card. This is also easy to use and will be introduced later ).

In addition, when selecting a built-in wireless network card, it is best not to use a built-in card for a laptop with a built-in slot but no built-in antenna, because the position, method, wiring, environment, close-up, and shielding of the antenna will directly affect the wireless signal, improper installation will greatly affect the wireless performance, this type of laptop is preferred when using an external card.

When selecting the built-in wireless network card, you also need to note that the laptops of IBM, HP and other brands need 1802 error cracking compared with the wireless network card IBM non-original card, new HP models may report 104 errors). It is best to choose an original or disassemble card that is fully compatible with it. Of course, there is no need to worry about other brands of laptops. When selecting a laptop, you only need to pay attention to the wireless network card to indicate whether the series of products can be supported.

For example, most standard Intel, Broadcom, and Atheros) Mini-PCI half-high card/full high card or Mini PCI-Express wireless network card can be fully compatible with DELL, Toshiba support shortcuts and Toshiba dedicated wireless management program), Samsung supports most keyboard shortcuts and signal lights), Asus supports most models shortcut keys and signal lights), Sony supports most models shortcut keys and signal lights) lenovo/Founder/TCL/Qixi/Shenzhou almost all series of models shortcut keys and signal lights) and other brands of laptops.