It's different now, it's too easy to learn computer repair now!
In the past, to learn to repair computers, you need to work in a computer company for a year, study with the masters for a few months, first move the box, and then install the system, and finally let you disassemble the hardware, or you will make the boss lose money every day!
1. The computer has a high degree of integration, plug and play!
Now the computer assembly is much simpler, and there are many fewer parts, just the power supply, CPU, memory, motherboard, hard disk and heat sink. The hard disk and memory are installed on the motherboard, and there are many fewer cables, so the failure rate is much reduced.
You should know that in the early days, the sound card, graphics card, network card, and multi-function card of the computer were all independent, and you also need to set interrupt IO, address, and DMA channels separately when you install these boards. If the settings are not good, it will cause a crash, so you need to remember what the IO of the sound card is and what the IO of the network card is when you install the machine, and you need to assign them yourself to avoid conflicts.
You said that it was complicated to install a computer at that time, and it was really not good if it was not professional.
1) USB devices can be unplugged at any time
In the era of parallel port printers, we not only have to set the working mode of parallel port (SPP, ECP, EPP) in the BIOS, but the printer cannot work well if the equipment is not good, so we will give you a strike. It is more troublesome to connect the signal cable between the printer and the host, and the parallel port data cable can only be unplugged after the power is turned off. There may be a friend to say, I have nothing to do with the power to plug and unplug! That's your luck, I used to repair the mobile company's bill printers in batches, and I have to repair twenty or thirty units every month, which is a problem, and the data cable is plugged and unplugged with electricity, resulting in the CPU burning!
2) HDMI and DP signal lines are plugged and used
Now many of the monitors and hosts are connected by DP or HDMI signal cables, and there is no need to screw them, just plug them out directly. Note that DP is a bit special.
In the past, when using the VGA signal cable, it was also required that the display be turned off and powered off before it could be unplugged, and a small spark could be seen flickering when it was plugged and unplugged when it was live! If you are lucky, the monitor or graphics card interface will be burned!
3) Only the graphics card can be plugged into the computer motherboard!
The integrated graphics of computers are already very good today, although motherboards still retain a PCIe 16X slot, which is often empty. Even if you want to use it, there is only one discrete graphics card to plug in!
2. The system installation is simple!
Now the installation of the computer system is much simpler, and the GHOST system is installed, and almost all the commonly used software is installed. In the past, when installing XP, it was necessary to install it step by step, and it was necessary to manually enter the SN number, and many maintenance masters could remember multiple SN numbers, because the system was installed every day, and there were too many times to carry it.
1) GHOST installation
The online WIN10 version of the GHOST system is very convenient and quick to install, and the SSD is installed in about 20 minutes. Only a few motherboards need to use the driver wizard or driver management to download the driver, and just install the individual driver.
Reminder: Be sure to install anti-virus software, because the GHOST system is often embedded with viruses or adware, or others spend time to make whose money?
2) Microsoft U disk installation
Microsoft's official website also provides a USB flash drive or CD-ROM installation version, which is a step-by-step installation of the WIN10 system, and a laser activation code is required during the installation process. This kind of installation is a very pure operating system, and the application software also needs to be downloaded and installed one by one.
3), 驱动精灵
Since there is GHOST system software, the driver wizard is used less, unlike before, every time you install the system, you need to use the driver wizard, one by one driver installation. Or use the disc driver that comes with the motherboard, and install a system in less than an hour or two, which is impossible.
4) Computer housekeeper
Now the brand installation system is also simple, as long as the system is installed, go to the official website to download a computer management or drive manager and other software, you can automatically install the corresponding model of the computer driver and application for you. At the same time, you can also inquire about the warranty period of the computer, and you can contact the after-sales service.
3. BIOS Chinese interface is up
Now the computer BIOS can also be equipped into a Chinese interface, which is convenient for viewing and equipment, although some translations are incomprehensible, but it is already very good. You have to know how many years the BIOS English interface has been, and it has always been in English. When the Internet was not developed, I had to buy books to slowly understand what each parameter meant, and Disable and Enable alone made me study for a long time, because it was not Yes or No!
4. The maintenance means are simple
Now the work of repairing the computer has also been upgraded, there are all kinds of diagnostic cards, there are all kinds of maintenance manuals, there are fault lights on the motherboard, and there are diagnostic fault lights on the chassis panel, which is really convenient.
However, the most effective maintenance method is to pull out, wipe and discharge, and the repair tool only needs a screwdriver and an eraser.
One pull
When we encounter problems such as not turning on, not starting, and ticking alarms, we need to unplug the panel switch cable, unplug the memory, unplug the graphics card, unplug the data cable, and so on.
Two rubs
Once unplugged, use the eraser to carefully wipe the memory module, the gold finger of the graphics card, and the contacts of the CPU. After polishing the memory module and the gold finger of the graphics card, install it back to see if the fault has been resolved.
There will be a lot of problems when the CPU contacts are oxidized, and the fan does not start when it is turned on, and it does not alarm when it is turned on.
Triple discharge
After booting up, sometimes the CPU fan stops when it turns or the fan turns but does not start, we can first use the CMOS_CLR jumper on the motherboard to clear the CMOS configuration data, or deduct the CMOS battery, and directly short the positive and negative poles of the battery holder on the motherboard. After a minute, put on the CMOS battery and see if it can be turned on normally.
The MCOS configuration data of today's motherboards is not like that of earlier computers, and it needs to be backed up when it is emptied to prevent it from being unable to be restored to its original state. Now there are two kinds of data in the BIOS settings, default and optimization, which can be called directly, and you don't need to manually set them one by one.
Caution:
Don't underestimate CMOS discharge, now many people think that it is a problem to replace the motherboard, and the CMOS problem will be solved!
Generally after these three steps, 80% of the problems of not turning on the crash have been taken down by you, and the following is indeed a hardware problem, such as bad memory (replacement method), bad power supply (replacement method), bad graphics card (replacement method), bad motherboard (replacement method), bad CPU (replacement method).
5. The blue screen also has a code, and it is easy to contact if there is an error
In the XP era, the computer was in use and suddenly there was a blue screen, which was a blue screen. Now the blue screen is much better, and there will be an error code to tell you, and you can look up the possible causes of the failure on the Internet according to the error code, and troubleshoot them one by one to solve the problem.
NOW THE OPERATING SYSTEM'S ABILITY TO DETECT HARDWARE IS MUCH HIGHER, AS LONG AS THE WIN10 SYSTEM CAN BE INSTALLED NORMALLY, IT MEANS THAT THE HARDWARE PERFORMANCE IS STABLE, AND IT IS GENERALLY DIFFICULT TO HAVE A BLUE SCREEN AGAIN. If a blue screen appears in the future, consider whether it is caused by peripheral crashes or environmental electromagnetic interference.
Do you know?
IN THE PAST, WHEN XP OR WIN7 WAS INSTALLED, MANY PEOPLE COULD BE STUMPED AT THE FIRST LOGO SCREEN ALONE, AND AFTER THE FILE WAS COPIED, IT KEPT GOING IN CIRCLES AS SOON AS IT REACHED THE POSITION OF THE WINDOWS LOGO AFTER RESTARTING. Some friends who often engage in maintenance will remember that 6 turns in this position will pass, and a maximum of 9 turns. I've also encountered a dozen turns before I passed. Do you know what the system is doing at this time?
6. It's really not good, and BD!
If you still don't understand, you can also check Baidu on the Internet, and you can search for headlines. As long as you can describe the fault phenomenon clearly, you can find out N multiple answers, you read them one by one, check them one by one, and sit in the right seat.
Therefore, it is too simple to learn computer maintenance now, only an eraser, a screw, and a USB flash drive are enough. The U disk needs to make its own PE system, which can be made into a dual system, one is a disc system, and the other is a PE system such as Lao Mao Tao or Chinese cabbage, which can adapt to different computers and adapt to different BIOS boot methods.