The power indicator is on, but it can t be started

First of all, you need to check whether the connection is normal and whether it is loose. Secondly, the indicator light is on after booting, and the CPU fan is also turning, and then it's just that the optical drive has a startup response, there is no alarm sound, and the display does not respond, resulting in a lot of such situations My family was like this a while ago and then went to repair it and found that the motherboard burned When I found it, of course, I can't judge that this is a problem with yours Because there are too many reasons for this situation, you can rule it out yourself First of all, local exclusion Check it first, you dismantle your discrete graphics card and boot it with the integrated graphics card on the motherboard If it can be turned on, it is the fault of the discrete graphics card If you still can't open it, this time it's going to disassemble other parts The same experiment I'm not very clear You can go to the Internet to see the related articles Find the minimum startup method Look at what people write It should be clear If you rule out the hardware problem, then it's the software However, if the display doesn't respond I personally think it's a big problem with the hardware.

Faults can be ruled out by the fault phenomenon, because these two faults should have a short or long alarm. This phenomenon is more likely that the CPU is not working, and the common and most desirable is that the CPU pins are not in good contact, you can remove the CPU and clean up the pins to try it; If not, remove all peripheral cards, optical drives, and hard disks, and try to see if you can turn them on? Then there was a problem with the cup or motherboard, so I had to ask a professional to solve it.

Wrong. Your power indicator light is on, it just means that your motherboard's boot circuit is good, and the point switch can achieve a low level. If the power is turned on and the power is started, and then there is no movement down, it may be a lot of problems, and it must be checked one by one.

But I can tell you for sure that it's a problem with the motherboard, and the probability of CPU problems is very low. Go fix it, I'm a professional, give me points.

You take the memory down, blow it, erase it with an eraser, and put it on again to try ......

You first see if the keyboard light will be on, if it does, the graphics card may be loose or the monitor cable is not connected.

If it won't light up, open the case, unplug the memory, blow it, and then erase it with an eraser and put it on again. If CMOS discharge still doesn't work, just unplug the battery, turn off the power strip, and put it back on after a few minutes. If it doesn't work, you have to take it to the store to repair it.

Once the TV at home fails, it is easy to not turn it on. So what's the deal with the TV not turning on but the power light on?

If the TV is in standby mode and cannot be turned on, you can press the standby button of the following remote control or the channel + - button on the fuselage to wake up the TV; If it still can't be turned on, it means that the TV hardware is faulty, and the fault may be in the high-voltage board or driver board.

1) The power supply of the TV is abnormal due to the failure of the power supply system, and the machine cannot be turned on.

2) The high-voltage package of the TV The high-voltage plate failure causes the screen to be unable to display and cannot be turned on.

3) The picture tube of the TV The display screen failure causes the machine to be turned on and the image is not displayed.

4) The internal circuit failure of the TV or the failure of other parts causes the machine to be turned on.

The desktop power indicator is on, but it can't be turned on when I press the power button, why?

It may be that the plug-in cable is incorrect.

The power indicator lights up to indicate that the motherboard is powered on normally.

Check whether the external wiring of the computer is properly connected, and plug in each cable again to see if the fault is eliminated.

If the fault persists, then open the main chassis to check whether there is any excess metal in the chassis, or a short circuit caused by the deformation of the motherboard, and smell whether there is a burning paste in the chassis, whether there are burned chips on the motherboard, and whether the capacitors around the CPU are damaged.

If not, clean the motherboard from dust and check if the computer is OK.

If the fault persists, unplug the reset cable on the motherboard, connect it with other switches and indicator lights, and then use the change cone short-circuit switch to see if it can turn on.

If it can't be turned on, then use the minimum system method, unplug the data cable of the hard disk, floppy drive, and optical drive, and then check whether the computer can be turned on. Then connect the above devices to the computer one by one, when connecting a certain device, the fault will recur, indicating that the fault is caused by this device, and finally focus on checking this device.

If the fault persists, the fault may be caused by devices such as memory, graphics card, CPU, and motherboard. Then, use the plug-in method, swap method and other methods to check whether the memory, graphics card, CPU and other devices are normal, and replace the damaged devices if there are damaged devices.