When the computer is turned on, the main unit is loud HELP

Generally it's a fan problem, the fan will age after a long time, the gap will increase, and the turn will be loud, if you have a lot of money, you will change it to a new one, it doesn't matter if you don't change it, as long as the fan works normally, it has no impact on the computer!

1: There is too much dust in the fan and the speed is loud, open the case and clean it with a brush, and then use lubricating oil (sewing machine oil is the best) to put some oil on the fan shaft!

2: The BIOS battery is dead, you can solve the time problem by changing the battery, buy a about 5 yuan, not expensive!

It's poisoning at the wrong time.,I've had such a situation too.。。

If the boot is too loud, is the speed of the fan changed?

Press and hold Del Jian when you turn it on, after entering the blue screen, check the 2nd item on the right, press Enter, enter Y or OK, and then the dialog box appears, enter Y or OK, you can restore the fan speed, if it doesn't work, then send it for repair

In my experience it should be the problem with the power fan.

So is my computer!

Because it's winter, the fan's lubricating oil solidifies, so it will be very loud when the cold engine is first turned on!

You don't have to turn it on, turn it off, and the computer won't ring after a while when it heats up!

It should be a problem with the power fan, you can find a rubber glove, and then turn it on yourself and use a brush and hair dryer to clean up the soil, and then find some lube to light it. I do this a lot on my computer, and I do it every time.

The power supply fan, or the CPU fan is broken, basically the power supply is a little more, change it, or you learn from me, the power supply fan is removed?

When it's cold, the lube in the fan will condense, so I think when I turn it on.

When the fan turns for a while, the fan lube thaws, so it doesn't ring after you turn it on a few times. (Actually, you turn it on once, let it ring by itself for a while, and after a while he won't ring by himself).

About the boot drip.

1. Short sound: It means that the system has been booted up normally.

2 Short sound: Indicates that the CMOS settings are incorrect. To boot up, press the del key to enter the setup and select "load bios defaults".

1 long sound and 1 short sound: indicates that the RAM or motherboard is faulty. Try checking the memory sticks touching or replacing the memory first, if you rule out the memory issue, you will need to replace the motherboard.

1 long sound and 2 short sound: It means that the monitor or display card is faulty. Please try to plug the graphics card tightly, and you may need to change the PCI graphics card or ISA graphics card for testing, because some AGP graphics cards are not in good contact.

Monitors are hard to break, unless it's an old monitor that's been used for a long time. It is often necessary to test the monitor on a different computer.

1 long sound and 3 short sounds: indicates that the keyboard controller is wrong. When you need to check your motherboard, you'll realize that it's better to have a motherboard with a three-year warranty.

A long, persistent sound: Indicates that the memory module is not plugged in tightly or that the memory module is broken. Try plugging in or replacing the memory module.

A persistent short sound: Indicates a power failure or the monitor is not properly connected to the graphics card. Power failures can usually be located by plugging in the monitor and card cables.

Repeating a short sound: Indicates a power failure.

1 long and 1 short: There is an error in the memory or motherboard. Try to change the memory, if it still doesn't work, you have to change the motherboard.

It may be that the memory module is not plugged in properly, you unplug the memory, wipe the gold finger part with an eraser, and then reinstall it.

Based on the situation you described, it can only be said that your computer has a hardware failure. It is recommended to find a computer repairer to help you test it.