Why doesn t the monitor light up when the computer host is turned on, and the memory of the graphics

1 Exclusions"False"Black screen: Check whether the power plug of the monitor is plugged in, whether the power switch is turned on, whether the data connection between the monitor and the graphics card on the host is connected, and whether the connection shake is loose, to see if the black screen is caused by these factors. Also, you should move the mouse or press the keyboard to see if the screen returns to normal.

Because the black screen may also be due to the setting of the energy-saving mode (which can be viewed and modified in the BIOS settings).

2. Whether other parts of the system are working normally while the screen is black, such as: whether the soft hard disk drive self-test passes when starting, whether the keyboard keys respond, etc. You can test it with a good monitor connected to the host computer by switching method, if only the display screen is black and the other parts are normal, then only the display has a problem, which is still a fake death phenomenon.

3 Check whether the contact between the graphics card and the IO slot of the motherboard is normal and reliable, and if necessary, you can insert a different IO slot into the graphics card.

4.If you have a set display and have used it before, you can change it back to the set display and give it a try! to determine if it's a fault with the display!!

2 If the large item is not plugged in, insert it slowly.

Hit the computer, take out the electronics, wipe them with your hands, and put them back!

That's the problem with the screen.

Is the monitor power supply loose?

Does the keyboard light up after powering on? Is there a drip?

<> Causes and solutions for the display not lighting up after installing the memory module:

1. Monitor damage: repair or replace the monitor.

2. The memory module is not compatible with the motherboard: replace it with a memory module with the same specifications as the previous one.

3. The memory module is not installed successfully: Install the memory module correctly on the card slot.

4. If the installed memory module exceeds the maximum memory supported by the motherboard, replace the memory module with a memory size within the range supported by the motherboard.

5. There is a problem with the quality of the memory module: replace the memory module.

6. There are stains on the memory module: Clean the gold finger of the memory with an eraser.

7. There is a problem with the card slot on the motherboard: go to the after-sales service to overhaul the card slot on the motherboard.

There is a button battery on the motherboard, which supplies power to the motherboard to record BIOS information without booting, and replaces the Congxiang memory module, which does not match the original Xinxiao interest, and can be re-inserted or deducted from the battery for 10 minutes. Touching Zheng refers to re-installing and booting up.

You can unplug the installed memory module fibrillation and try it,If you don't install a new one, you can display it,You can make trouble to try it in a different slot.,If you guess the wax cover fruit is not good, it may be incompatible or there is a problem with the memory module.。

Summary. Has the hard drive cable been checked? Replug the monitor cable and see, how about not entering the PE detection hard disk again? Or try to reinstall the system, there is a possibility of virus intrusion.

The computer host can be started, but the monitor is still not lit, the graphics card is plugged in, the memory is plugged in, and the screen still can't be lit up? cpu

Has the hard drive cable been checked? Replug the monitor cable and see, how about not entering the PE detection hard disk again? Or try to reinstall the system, there is a possibility of virus intrusion.

The graphics card was unplugged, disassembled, and wiped, and the memory module was also wiped and removed.

It could be an issue with the CPU.

The keyboard and mouse are also bright, and the display is also red, but the screen doesn't come out.

OK fault analysis: The BIOS data inside the COMS chip of the motherboard is damaged by CIH virus or static electricity, etc., and cannot be read, and the system cannot complete the self-test when it starts, so it cannot be started. Known workarounds:

Contact the motherboard manufacturer to replace the COMS chip with a new one, or find the BIOS file provided by the motherboard manufacturer and write it to the burner.

Okay. Check with the after-sales service to see if he can send you a new CPU, or that the graphics card has been oxidized.

3.Or confirm whether the graphics card is loose and show whether the gold finger is oxidized, after pulling out the graphics card, wipe the gold finger with an eraser or dry paper towel, and then load and reinstall it, and test it again. If none of the above works, it may be caused by a hardware problem on the computer, the probability of motherboard or memory is relatively large, and the probability of CPU damage is small.

The host runs the display screen and does not respond, the keyboard does not light up, the restart does not work, the memory module is wiped, and the graphics card is also wiped and it is not good, ask the great god.

The memory module is packed.

If the memory module is loose, it may also cause it to not light up.

Open the side panel of your computer's case, unplug the memory module, and reinstall the memory module in the memory slot again.

Or choose to switch to another memory slot, and turn on the computer again to enter the old cheat test; If Oak Hui has more than one memory stick, try it alternately to rule out the fault caused by the damage or looseness of one of the memory sticks.

1.Find the button battery on the motherboard, and loosen the tenon of the button battery with a hand buckle or use a screwdriver;

2.The CMOS battery on the motherboard will automatically pop up, take it out directly with the hand beam, leave it for about ten seconds, and then reinstall it in its original position, turn it on for testing. Simplified.

3.You can also choose to remove the CPU and then install it, and the host of the computer can also be lit up, however, it is a bit troublesome, and you need to remove the CPU heatsink and reinstall it. 4.

If the cover computer host is turned on, but the monitor does not respond, the mouse and keyboard are also bright, and the "numlock" key on the keypad will turn off the light when pressed, and the light will turn on when pressed again; It means that the host has been running normally, and it may be caused by the wrong connection line between the monitor and the host**.

1.The Chang Cheng host with this kind of error is generally installed with a discrete graphics card, so many users will plug the ** line of the display into the display interface of the motherboard, which is correct;

Or confirm whether the graphics card is loose and show whether the gold finger is oxidized, after pulling out the graphics card, wipe the gold finger with an eraser or dry paper towel, and then load and reinstall it, and test it again. If none of the above works, it may be caused by a hardware problem with Zheng Yan on the computer, the probability of the motherboard or memory is relatively large, and the probability of CPU damage is small.