Your laptop hard drive will not boot, does the computer screen show a black screen? At this time, how should we solve the computer problem like this? First, we can start with the computer hardware and start troubleshooting the computer components one by one. Let's take a look at the specific sequence of operations below.
First of all, first check whether the lithium battery or the external power adapter of the notebook is powered. If the power supply is normal, the power indicator of the computer will remain lit.
If the power display does not light up, it may be that the computer graphics card or the motherboard is broken, or the memory module may not be in good contact. Open the back cover and first plug the memory back to see if it is a memory problem. Is it a problem with the motherboard.
These problems with common peripherals may cause the notebook to boot without turning. The specific problem is analyzed specifically:
1. The display data line is in poor contact; 2. The main board has no power supply; 3. The graphics card has poor contact; 4. The CPU is in poor contact or overheated; 5. The memory module is in poor contact; 6. The power supply performance is poor, and the work is overheated; 7. Virus Sexual destruction BIOS can not be modified to boot; 8. Microsoft black screen patch is not marked; etc., you can check whether the computer hardware installation is normal, contact is good, you can re-plug the graphics card, memory, hard disk power supply and data cable, try Try to boot normally.
After the above hardware troubleshooting, you can also try the following simple methods:
1. Find a mobile hard disk to connect to the notebook, and then test whether the computer can recognize it. If it can be recognized, you can eliminate the problem of external power supply. Next, you can check whether the control board and BIOS are broken and need to be replaced.
2. It may be that the hard disk gold finger is corroded by the tide. You can use the hair dryer to blow off the power board of the hard disk, and then try to power it on. Generally, if the hard disk is ok, it can be used normally.
It should be noted that it is confirmed that the hard disk circuit is broken. If you need to change the board, you need to change the BIOS at the same time. You need to solder the BIOS chip in the bad circuit board and install it on the newly purchased circuit board.
If it is not for these reasons, it may be because the hard disk or the circuit board is broken. If it is a firmware problem (such as the disk is broken), it is recommended to find a professional data recovery personnel to solve the problem, or replace a new hard disk (if the data in your computer is not important); if the hard disk circuit is broken, you can Buy a hard drive circuit of the same model on the Internet or in an electronic store.
Sometimes, if the hard disk is broken, it may be because the motor drive chip is broken. It is also good to change the motor drive chip, but it is more difficult to solder. It is recommended to find a professional welding master to help.
The name of wireless router can be separated out of two keywords: wireless and routing. Understand the technical principle behind these two words, you understand the wireless router.
Wireless is also what we often call Wi-Fi. Wireless routers can convert home broadband from wired to wireless signals, and all devices can happily surf the Internet as long as they connect to their own Wi-Fi. In addition, these devices also form a wireless local area network, where local data is exchanged at high speed and is not limited by the bandwidth of home broadband.
For example, many people have smart speakers in their homes that can be used to control various smart appliances. When you say small X small X, turn on the TV, the speaker actually finds the TV through the LAN and sends instructions, and does not need to connect to the Internet; And if you let it broadcast news, you have to get data through the Internet.
The Local Area Network we talked about earlier, also known as the Intranet, is represented by the Local Area Network (LAN) on the router, so the Wi-Fi signal is also called WLAN(Wireless LAN); The Internet we want to access, also known as the extranet, is represented on the router by the WAN(Wide Area Network).
On the Intranet, the IP address of each device is different, which is called a private address. All devices on the Internet share the same public address, which is assigned by broadband operators such as China Telecom Unicom.
The router is the bridge between the Intranet and the external network. The above mentioned IP address translation, packet forwarding, is the router routing function.
In other words, the router is the hub of the home network, and the data of all the devices must be forwarded through it to access each other or reach the external network, which means that one husband is the key and ten thousand men are not open, so the comprehensive router is also called "home gateway".
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