Right-click "My Computer" and select "Device Manager" to uninstall the graphics card first. As shown in the figure below:

Second, restart the computer, the computer will automatically search for new hardware and remind you to install the graphics card driver. If there is a drive CD, put it directly into the drive CD for installation; If you don't have a driver CD, you can download a graphics card driver or a general graphics card driver of the same model from the Internet for installation.

3. You can also repeat the first step and then click "Update Driver" to install a new driver.

Fourth, if you really can't find a suitable driver, then restore the system or reinstall the system, and the driver will be automatically installed during the restoration or reinstallation.

2. How to repair the broken graphics card?

This question is more complicated! Opening/original poster

"The graphics card is plugged in, and the boot indicator does not reflect or display. You can start it without any alarm. " From here on, the video card should have no signal output! ! !

I think the following article should be ok! ! !

Many graphics card players like to brush DIY graphics card BIOS by themselves, but they are afraid that the screen will be black if the brush is unsuccessful. After failure, it's really DIYer's nightmare to type blindly, recover or ask PCI graphics card for help. In fact, there is a way that you can brush the BIOS almost without taking risks.

DIY principle: Some are like dual BIOS, one is broken, and the system can read the correct BIOS information of the graphics card on the other.

But where can I find a second BIOS? Hehe, isn't it on the motherboard?

DIY idea: 1, the first BIOS data loaded after the host starts is the graphics card, and then the motherboard. Then CMOS data. If the graphics card BIOS data is faulty, the screen will be black, but the system is still running. Then, if the BIOS of the original graphics card is embedded in the BIOS of the motherboard, the system can boot the North Bridge for the second time and correctly call the hardware API of the graphics card. At present, the BIOS part of the motherboard integrated graphics card is embedded in the motherboard BIOS, so this method is really feasible.

2. Brush the BIOS of the graphics card into the BIOS of the motherboard (here, check the model and capacity of your motherboard BIOS, which is generally 1M, and some motherboards may be 2M.4M). If the motherboard BIOS still has enough capacity to accommodate our graphics card BIOS files, then we can put them in.

DIY tool: 1, BIOS Patcher (the previous version was a DOS environment, and fans with poor E-text may be a little troublesome. I wonder what version it is now. When I used it, I only supported award-winning BIOS chips. Now I may support them all. )

2, own motherboard BIOS brush software

3, the use of the BIOS patch 3, check:

DIY method: First, export the original motherboard BIOS, open the BIOS file with BIOS Patcher, input the BIOS file of your own backup graphics card, and then save it. . (For a BIOS chip with a capacity of 1M, the BIOS.bin of this motherboard is generally only 5 12K, and it is not a big problem to add a graphics card BIOS of about 256K. )

If the size of the motherboard BIOS file exceeds the standard after saving, the motherboard BIOS embedded in the graphics card BIOS may not be able to be brushed into the IC chip. Don't be afraid, we can use BIOS Patcher to delete some useless things in the motherboard BIOS to make room for the graphics card BIOS. What can be deleted? Someone tried. Look for related posts. Dare not try, because the motherboard BIOS is broken, I have to go to the hospital. . This is the last resort and the most risky link. If this problem occurs, you can choose to give up after weighing. I can only blame myself for the small BIOS chip on the motherboard. ) personal portal 6 zaf 7 ch—— When the motherboard BIOS including the graphics card BIOS we made completely meets the requirements, we can proceed to the next step and brush the completed motherboard BIOS file into a motherboard. The computer reported that the personal door was ok, and now our lifebuoy is ready. Now there is a spare graphics BIOS on the motherboard, so we don't have to worry about the black screen after the graphics BIOS fails.

0 Use: When we have finished everything, we can put down the BIOS of the hand-drawn graphics card. . For example, if you want to brush a miscellaneous brand graphics card into ASUS, if you find that the system still displays the previous BIOS after refreshing, there is something wrong with the BIOS of the brushed ASUS graphics card, which cannot be loaded, and the lifebuoy has already worked. The system is currently using the standby BIOS on the motherboard. There is no black screen because of the failure to refresh the graphics card BIOS. Is it sci-fi to continue the BIOS of DIY graphics card? No, it's true. This is really a once-and-for-all approach,

Reverse thinking, we can brush the BIOS of DIY graphics card into the motherboard, and then short-circuit the BIOS chip of shielding graphics card. You can ensure that the graphics card is not bad (it is feasible to borrow JS with a fever from sample graphics cards everywhere), but this road seems to be n times more dangerous, so I stopped.

PS: We can DIY the graphics card BIOS embedded in the motherboard BIOS.bin in advance, and add a sentence under the POST character to remind you that this embedded BIOS is currently in use, so that it can be distinguished from the existing graphics card motherboard BIOS.

This method can only ensure that the graphics card with broken BIOS can still work normally on its own machine, but the BIOS of the graphics card cannot be used on other machines unless it is repaired. This is also the purpose of adding self-checking tips to the standby BIOS, so as not to forget that the graphics BIOS is broken by DIY and has not been brushed back.

3. What happens when the computer graphics card is broken?

Symptoms of damaged video card:

1, semi-disable the graphics card

If the computer's graphics card is not completely broken, the symptoms are as follows:

Can boot normally, can use small software such as OFFICE normally, and can surf the Internet normally. In short, there is no problem with the general basic operation.

However, if the computer is accelerated with "complete" hardware, the screen will become a gorgeous or colorful screen. Or when playing games, the speed slows down or the picture changes immediately.

Generally speaking, the graphics card is about to be damaged. When it is not completely damaged but in a semi-failure state, its hardware equipment will have such a situation: the capacitor on the graphics card equipment is prominent or can smell burning. Or, the circuit trace is blurred and the interface is loose.

2. The graphics card is completely damaged.

When the computer graphics card is completely damaged, the first thing is that the computer can't boot normally. When the computer is turned on, we will see the words "No signal" on the screen of the monitor.

Summary of symptoms of video card damage:

1. The computer monitor is unresponsive, the boot screen is completely black, or there is a beep;

2. Abnormal display color;

3. collapse;

4.4. There is a flower screen in Windows, and the handwriting can't be seen clearly;

5. The text appears in the window. The screen display is incomplete;

6. There are some abnormal vertical lines or irregular small patterns in the window;

7. The graphics card driver has been loaded. After running for a period of time, the drive is automatically lost;

8. When the computer is turned on, garbled codes appear on the screen.

4. How to repair the laptop graphics card if it is broken?

This may be caused by your incorrect resolution setting, please set it again. If either the resolution or the resolution cannot be set, the graphics card driver is damaged or an inappropriate driver is installed. Please install the appropriate graphics driver or repair the system. Please look at the following methods.

1. Press F8 when starting the machine until advanced options appear. Select "Last Correct Configuration" and press Enter to repair (this method can restore the original driver).

2. If the fault is caused by updating the driver, please right-click My Computer and select Properties, and then select Device Manager to find the driver. Right-click Properties/Driver Options/above to return to the driver options below, and then press OK.

3. If the fault still exists, it is recommended to reinstall the operating system.

Use the system restore method that comes with the system:

System Restore: Start/Programs/Accessories/System Tools/System Restore. Click Restore my computer to an earlier time and click Next. You will see a dark date on the date page, which is the restore point. After selecting, click Next to restore the system (Win78), right-click the computer to select properties, and then click Next.

The driver comes with the computer and is downloaded from official website. The software includes software such as driver wizard, driver life, super rabbit, etc. (try to install drivers in order).

5. What happens when the graphics card is broken?

Common fault diagnosis of graphics card is as follows

(1) Bad contact fault of graphics card:

Poor contact with the graphics card usually leads to boot failure, alarm sound or unstable system crash. The main reasons for the poor contact of the graphics card are the oxidation of the gold finger of the graphics card, dust, poor quality of the graphics card or the problem of the chassis baffle. For the poor contact caused by the oxidation of the golden finger, rubber can be used to wipe the golden finger to solve it; Poor contact caused by dust can generally be solved after dust removal; For the poor contact caused by hardware quality, it is usually detected by replacement, which is usually solved by replacing the graphics card; For the poor contact caused by the chassis baffle problem, usually the graphics card cannot be completely inserted into the graphics card slot, which can be eliminated by replacing the chassis.

(2) Compatibility issues:

Compatibility failure usually leads to computer failure to start and alarm sound, unstable system crash or abnormal confusion on the screen. The failure of graphics card compatibility generally occurs after the computer has just been installed or upgraded, and it is more common that the motherboard is incompatible with the graphics card or the motherboard slot can't completely touch the gold finger of the graphics card. The failure of graphics card compatibility is usually detected by replacement, and the failure is usually eliminated by replacing the graphics card.

(3) The graphics card component is damaged:

Damage and failure of graphics card components usually lead to computer failure to boot, unstable system crash and broken screen. The damage of graphics card components generally includes the damage of graphics card chip, BIOS, memory, capacitor or FET. For the damage fault of graphics card components, it is generally necessary to carefully measure the signals in the graphics card circuit to judge the damaged components, and then replace them after finding the damaged components.

(4) the graphics card overheating fault:

Because the graphics card chip will generate a lot of heat when it works, it needs better heat dissipation conditions. If the cooling fan is damaged, the graphics card will overheat and cannot work normally. The overheating fault of graphics card usually leads to system instability, crash, screen display and other faults. If the graphics card is overheated, just replace the cooling fan.

(5) graphics card driver failure:

The failure of graphics card driver usually leads to system instability, crash, and incomplete display screen and text image graphics card. The failure of the graphics card driver mainly includes the loss of the graphics card driver, the incompatibility between the graphics card driver and the system, the damage of the graphics card driver, and the inability to install the graphics card driver. Generally, if the driver of the graphics card fails, first go to the "Device Manager" to check whether there is a driver for the graphics card, and if not, reinstall it. If there is, but there is "!" On the graphics driver. , indicating that the graphics card driver is installed incorrectly, the driver version is wrong, and the driver is incompatible with the system. Generally, delete the graphics card driver and reinstall it. If there is still "!" After installation. , you can download a new driver installation. If you can't install the graphics card driver, there is usually something wrong with the driver or the registry.

(6)CMOS setup failed:

The failure of CMOS setting is caused by the wrong setting of display related options in CMOS. Common CMOS setting faults mainly include: the motherboard with integrated graphics card, and the shielding option of graphics card in CMOS is set incorrectly; For example, the AGP drive control option is set incorrectly (usually it should be "automatic"), the AGP aperture size option is set incorrectly, and the support for fast writing option is set incorrectly. CMOS setup errors can usually be corrected by loading the default BIOS values.

(7) the graphics card overclocking problem:

The overclocking problem of graphics card refers to the computer failure caused by improving the speed and working frequency of graphics card when using. After a problem occurs, you can restore the frequency to the factory default settings.

Is this ok?

6. How is the performance when the graphics card is broken?

If the discrete graphics card is broken, first of all, the computer screen is completely black, which means the graphics card is completely broken. If the color of the broken monitor is abnormal and the picture is very blurred, it means there is something wrong. Moreover, the discrete graphics card often crashes when it is broken, the handwriting of the display is blurred, the color and font of the displayed picture are incomplete, and so on.

If nothing is displayed on the computer screen after the computer is turned on, it means it is broken. And it's not particularly serious, but the picture is blurred, the handwriting is unclear, and it may be a crash. Let the professional maintenance personnel have a look.

It is easy to distinguish the symptoms of broken discrete graphics cards, that is, the monitor has various problems. Of course, the monitor may not be completely scrapped. Probably loose, too dusty. As long as the monitor is cleaned in time, it can still return to normal.

Extended data:

Common faults of graphics card and their solutions;

Boot without display, motherboard alarm, prompting credit card failure. System crash, blue screen. The picture shows anomalies, some colors and flower screens. Complex or irregular patterns appear on the screen. Play games, Caton, crash. The system display is abnormal, and the resolution cannot be adjusted.

Solution: poor contact between the graphics card and the motherboard, graphics card, clean gold finger. Clean the dust in the water tank and insert the video card. The driver is not installed correctly, or the driver is wrong. Reinstall the driver. Poor heat dissipation, stuck in work, will generate a lot of heat according to the core and memory particles. If there is no computer cooling, the graphics card may work unsteadily. After the failure, the first thing is whether the video card fan is working properly.

Overclocking, overclocking is to improve the performance of graphics cards. If it is not set properly, it will cause many problems. In order to eliminate these, the graphics card needs to return to normal. The components of the graphics card are invalid, which can only be eliminated by changing the graphics card or looking for professional maintenance. There are two kinds of graphics card failures: startup failure and display failure. The former means that the computer can't start normally or it doesn't display after starting.

The latter is the abnormal screen display after booting, such as what screen, color cast, abnormal resolution and running game software crash and so on.