Won t turn on Unplugged memory has an alert

Carefully ask the proposed question, the alarm horn on the motherboard is for memory, so if you unplug the graphics card, it will not alarm. What is the situation when you can't turn on, if the host is running normally after booting up, and the monitor doesn't light up, it may be that the graphics card is loose or broken.

Unplugging the memory is of course going to be alarmed. If you don't have memory, you can't turn it on.

If the graphics card is not available, the motherboard generally has its own graphics card-like features. In other words, even if you don't have a graphics card installed on the system, you can browse things without any problem.

(1) There is not necessarily a problem.

2) The memory must not be turned on, and it will also alarm, generally when the machine cannot be turned on, this is likely to be an oxide layer formed on the surface of the gold finger of the memory or independent graphics card, resulting in poor contact between the memory and the memory slot, and the poor contact between the graphics card and the graphics card slot, causing a black screen and unable to turn on.

Solution: You can turn off the power first, open the compartment, dial out the memory, use the eraser against the part of the gold finger (that is, where there is a copper sheet,) wipe it back and forth a few times, and then insert it back into the memory slot (or insert it back into the memory slot), it's OK, if there is an independent graphics card, you can also use the same method to deal with the graphics card, and then insert it back into the graphics card slot, and finally install the machine, restart the computer and it's OK, (take the memory ** as follows:)

If the memory is unplugged, it will definitely alarm, you install the memory, remove the hard disk and see if it can pass the self-test.

1. If you unplug the memory, there is no alarm, generally the power supply, motherboard and CPU, and at least one of the three major parts is broken. Of course, the premise is that the PC speaker has been plugged in, or the motherboard buzzer is working properly. When it comes to booting up, the most basic accessories are the power supply, motherboard, CPU, memory, and graphics card.

If one of them is faulty, the computer won't turn on.

2. There is no alarm without memory, there are two possibilities: the buzzer or PC horn is broken, and the alarm cannot be heard. The power supply, motherboard, and CPU, at least one of the three major pieces is broken.

This is because: when the computer is turned on, in order of use, the three most basic parts are the power supply, the motherboard and the CPU.

3. First of all, look at your current symptoms. The preliminary estimate is that a part of the motherboard has poor contact. Let's start by analyzing your situation:

1. The CPU fan turns to indicate that the power supply is normal, and the fan is connected to the power supply normally. 2. If the keyboard light is not on, it means that the keyboard interface has no power or a certain part of the motherboard is open.

4. There is no horn that will never sound. If there are speakers, there may be a problem with the motherboard, BIOS, or other slots. First, unplug all the motherboard expansion slots. Graphics card included. If it doesn't ring yet, it's almost certain that the problem is on the motherboard.

5. On the premise of confirming that the alarm system is fine, you can confirm that it is the power supply, CPU and motherboard, and one must be broken. The motherboard is most likely to be broken. The most basic accessories of a computer are the power supply, motherboard, CPU, memory, and graphics card.

These things work normally, and you can turn on the display.

6. Causes and solutions: loose or damaged memory sticksSolution: Wipe the gold finger of the memory stick with an eraser and reinsert the memory stick; Replace the memory module.

Poor contact solution for graphics card: Same as memory method. Host Short Circuit Solution:

Clean the console and replug the wiring.

I've encountered this problem before, the host delivered through logistics, there is no response when it is turned on, and then it should be a poor contact, I plug and unplug all the accessories again, press and press, and then turn it on, it's normal. I don't know if that's the case on your side?

aspects. The CPU is not powered: You can use a multimeter to test the three (or one) long tubes and three (or one) rectifier diodes around it to check if the CPU is damaged.

CPU socket is missing or loose: This type of fault is manifested as a light that does not turn on or crashes irregularly. You need to open the upper cover on the surface of the CPU socket and carefully observe if there are any deformed pins.

2.There is a problem with the motherboard expansion slot or expansion card. It will cause the motherboard to not respond after plugging in the graphics card, sound card and other expansion cards, so it will cause no display at boot.

3.Memory issues. The host does not recognize the memory, the memory is corrupted, or the memory does not match:

Some old motherboards are more picky about memory, once plugged in to the motherboard can not recognize the memory, the motherboard will not be able to boot, and even some motherboards do not have a fault prompt (tweet). In addition, if you plug in a different brand and type of memory, it can sometimes cause this failure.

4.The motherboard BIOS is corrupted. The motherboard's BIOS stores important hardware data, and the BIOS is also a relatively fragile part of the motherboard, which is very vulnerable to damage, and once damaged, the system will not be able to operate.

The hard drive doesn't alarm at all. Some boards also don't alarm when they don't plug in memory.

Regarding not displaying, it is recommended that you dismantle it all and plug it all back to see. In particular, try a different memory port.

Not necessarily, the hard disk is unplugged, and it will not alarm if the memory is not connected, or if the motherboard speaker cable is not connected, or the motherboard does not have an alarm function, it may not sound.