Generally speaking, using system patches is not absolutely safe. It is also easy to slow down your computer.
4. Because many operating systems have been slimmed down and simplified, the system uses these simplified useless things as a supplement. If you use them, the computer will become bulky and slow down.
5. Go to the control panel, find the firewall settings, change the update to never update, and the computer will be free from risks.
Computers often turn off automatically! The temperature and so on are normal, and the voltage is normal! The computer is also fast! Ask for an answer! hello
Your situation is generally caused by the following reasons:
1 The computer system is poisoned or infected with malicious software.
2 cpu fan is broken, cpu temperature is too high, overheating protection.
The power supply is broken, or new hardware is added, and the power supply is insufficient.
4 the video card or the video card fan is broken.
5 the motherboard is broken and the motherboard core is overheated.
Solution:
1 Check whether the antivirus software has killed the virus, and you can determine whether it is caused by computer system poisoning or malicious software. If there is a virus, it is recommended to use a combination of antivirus software, or if it fails, it can be solved by recharging or restoring the system.
Download Master Lu's software, test the temperature of computer hardware, open the chassis, see if the cpu fan and graphics card fan rotate normally, find out the problem and replace the cpu fan. 30-100 yuan. (cqjiangyong summary: the cpu fan is broken, which is the most common automatic shutdown problem)
If the computer is equipped with a discrete graphics card and the power supply is not enough, you can only change to a higher power supply. If the power supply is unstable for a long time, it should also be tested with another power supply.
4. Turn it off, and touch the south bridge chip, north bridge chip and graphics card chip of the motherboard with your hands. If it is very hot, it may be broken and need to be repaired.
Please start with what I said above and check it.
If I can help you, please choose a satisfactory answer!
What exactly does windows messenger do? You can send messages to people.
Enter command mode.
Send ip information
In this way, others will display a dialog box with the information you sent.
What is the purpose of computer restart? It's just that all the programs have been restarted.
What does a computer graphics card do? Graphics card is also called graphics card, video adapter, graphics card, graphics adapter and display adapter. It is the "bridge" between the host and the monitor, controls the graphic output of the computer, and is responsible for processing the image data sent by the CPU into a format that the monitor can recognize, and then sending it to the monitor to form an image. The graphics card is mainly composed of display chip (graphics processing unit), video memory, RAMDAC, VGA BIOS and various interfaces.
Graphics cards are divided into ISA graphics cards, PCI graphics cards, AGP graphics cards and PCI-E graphics cards. ISA graphics cards and PCI graphics cards have been eliminated, and AGP graphics cards are also facing elimination. PCI-E graphics card is the latest graphics card. Now there are also some motherboards with integrated graphics cards.
Each graphics card is basically composed of "display main chip", "display cache" (short for display memory), "BIOS", digital-to-analog converter (RAMDAC), "graphics card interface" and capacitors and resistors on the card. The multi-function display card is also equipped with video output and special needs input. With the development of technology, most graphics cards have integrated RAMDAC into the main chip.
As the name implies, the main display chip is naturally the core of the graphics card, such as TNT2, GeForce2, GeForce MX from NVIDIA and GeForce 4 which just appeared in the market. Their main task is to process the video information input by the system, and construct and render it. The performance of the main display chip directly determines the performance of the graphics card. Different display chips have different internal structure and performance, and their prices are also very different. Generally speaking, the more expensive the graphics card, the better its performance.
Video memory: The main chip of the graphics card plays an important role in the whole graphics card, but the size and quality of video memory are directly related to the performance of the graphics card. At present, there are several main types of memory: S-gram, SDRAM and DDR.
The main function of the graphics card is to convert the instructions and data provided by the CPU into acceptable words or images for display, which provides the basis for users to continue to execute or terminate the program. Generally speaking, when you play large 3D games, the graphics card plays an irreplaceable role. The higher the graphics card, the better the effect of playing 3D. If there is no graphics card, or the graphics card is low-order, when playing 3D games, the screen switching will be slow, the motion distortion will be great, the senses will not be fully * * *, and the entertainment effect will be greatly reduced. The main argument to describe the performance of graphics cards is video memory. At present, the recommended graphics card configuration for home computers to play 3D games is video memory 128MB. If the requirements are particularly high, you can also configure a graphics card with 256MB or 5 12MB memory.
What is the purpose of computer hard disk? Hard disk is one of the main storage media of computer, which is composed of one or more disks made of aluminum or glass. The disk is covered with ferromagnetic material. Hard disk mainly includes solid state hard disk (SSD disk) and mechanical hard disk (HDD traditional hard disk) HHD: hybrid hard disk (HHD). Hard disk analysis is as follows:
1. Hard disk speed: refers to the speed of the spindle motor of the hard disk, generally expressed in RpM. The spindle motor of the hard disk drives the disk to rotate at high speed, which generates buoyancy and makes the magnetic head float above the disk. To bring the data sector to be accessed under the magnetic head, the faster the rotation speed, the shorter the waiting time.
2. Data transfer rate of hard disk: Data transfer rate includes external data transfer rate and internal data transfer rate. 100, which is often mentioned in ATA 100, represents the theoretical value of the external data transmission rate of this hard disk, and refers to the highest rate at which a computer can read data from the internal cache of the hard disk through the data bus.
3. Hard disk cache: The process of reading data from the hard disk is to store the data to be read in the cache, and then transfer it from the cache to the data bus outside the hard disk at an external transmission rate after the cache is full or the data to be read is completed. It plays a balanced role in internal and external data transmission.
Log in to QQ, and the machine will get stuck. After shutdown, the computer will run normally. 1 Your computer QQ has a virus and takes up memory. You can defend against viruses in safe mode.
There are too many instant messages on your computer QQ, and the computer can't respond. Try to find a free one.
Maybe there is something wrong with your system settings. .....
(* _ _ *) ... Hee hee
Why is the speed of surfing the Internet at home normal, but the speed of downloading with Thunder is fast? Are you asking this question to restore your thunder to 50KB/S?
In fact, this is easy to understand, that is, the resources you downloaded have been searched by Thunder to the broadband service in your community or there are candidate resources on the connected server, so downloading things in a large LAN is quite slow, with a speed of 2 m/s, and I have experienced 20 m/s.
What is the function of computer graphics card? The full name of graphics card is display interface card, also known as display interface card, which is the most basic configuration and one of the most important accessories of a computer. As an important part of the computer host, the graphics card is the equipment for the computer to convert digital-to-analog signals and undertake the task of graphic output and display. The graphics card is connected to the motherboard of the computer, and the motherboard converts the digital signal of the computer into an analog signal for the display. At the same time, the graphics card also has the ability of image processing, which can assist the CPU to work and improve the overall execution speed. Graphics cards are very important for people who are engaged in professional graphic design.
Graphics cards are divided into three categories: core graphics cards, integrated graphics cards and discrete graphics cards.
Explain the advantages and disadvantages of these three cards.
Core graphics card is Intel's latest generation of image processing core. It is integrated on the processor. It is integrated with the processing core on the same circuit board, which improves the processing speed, reduces the power consumption and reduces the occupied space of integrated components. Its graphics processing effect is far better than the traditional integrated graphics card.
Disadvantages of core graphics card
However, core graphics cards are usually not expensive. It is integrated on the processor, not an independent chip, and cannot meet the needs of large-scale games and high-definition image processing.
Integrated graphics card is a component that integrates display chip, video memory and related circuits on the motherboard. There are separate display chips for integrated graphics cards, but most of them are integrated in the north bridge chip of the motherboard.
Advantages: low power consumption, low chip calorific value, and some integrated graphics cards are comparable to entry-level discrete graphics cards.
Disadvantages: integration on the motherboard or CPU is inefficient and irreplaceable. If it is replaced, it means replacing the CPU or motherboard.
Independent graphics card means that the display chip, video memory and its related circuits are made on a circuit board and exist as independent boards, which need to occupy the expansion kit slots (ISA, PCI, AGP or PCI-E) of the motherboard.
Advantages of discrete graphics card: it has its own module and video memory, which does not occupy the resources of memory and CPU, and makes CPU execute better and faster. The discrete graphics card comes with its own graphics chip, which can better provide the display effect required by large-scale games and better handle high-definition pictures.
Disadvantages: high power and large space occupation. Because of its high temperature, the chassis has better heat dissipation, and the funds used are much higher than the core graphics card and integrated graphics card. The power consumption and calorific value of the system are increased, which is more suitable for game users with strong configuration and display efficiency.
It is normal for a computer to start slowly and need to be restarted ... I have a friend who has encountered such a situation before! The machine hasn't been bought long. Because the motherboard is a parallel product, I always suspected that it was the motherboard. The startup and shutdown time is two or three times that of my machine. I set him a quick start, but it didn't work. After skipping the display of WINDOWS, it is still very slow. Later, we played a game together and reinstalled a system for him. Everything is settled. Mind charging the system! It is best to install GHOST XP SP3 automatically.