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Computer suddenly won't turn on? Simple tricks for solving problem


As a friend who often uses computers for work or play, I must have experienced a situation where computer suddenly stops turning on. Faced with such problems, I think that everyone will be very irritable and will affect our mood. So how to solve problem that computer suddenly stopped turning on? This article will solve your problems for everyone.

1. Power button not responding

1. Motherboard jumper set incorrectly

Computer suddenly won't turn on? Simple tricks for solving problem

If this type of problem occurs, you should first check that connectors on jumper on main board are inserted correctly. What is ruled out is a problem with underlying hardware.

Installing wire jumpers on motherboard has always been a problem for many do-it-yourselfers. Many small jumpers are very noisy and will not be installed correctly if you are not careful. Products Compare English Insertion solves problem accordingly.

2. Power switch not on/power failure

If motherboard jumper is set and checked correctly, and chassis switch button is OK, check if switch at power input is turned on. If computer still does not turn on under certain circumstances, then it can be pre-judged that the power supply damaged or defective.

Computer suddenly won't turn on? Simple tricks for solving problem

When there is no other power source. At this time, we must disconnect all power supply output connectors, short green and black wires after saving input power supply, try to turn on switch to check if power supply fan is rotating and working, if not, you can determine that PC power supply is damaged .

3. Faulty chassis power button

Computer suddenly won't turn on? Simple tricks for solving problem

This kind of problem is easier to fix. When "POWER SW" pin is successfully shorted and device can power on normally and boot jumper is set correctly, it still cannot be turned on. Then check if chassis power button is faulty. An easier method is to insert "RESET SW" jumper into "POWER SW" pin and if it can turn on normally, it can be determined that chassis power button is faulty.

Secondly, infinity restart dot doesn't light up after loading

After turning on computer, display does not turn on and endless reboot situation usually occurs on an old host that has been used for several years, but this kind of problem will also occur when turning on a new computer. turns on for first time. At this time, main equipment should be systematically. The specific problems are as follows:

1. CPU overheated

After CPU has been used for a long time, thermal paste between CPU cover and heatsink has dried up, which will seriously affect heat dissipation efficiency, and even cause host to restart endlessly and fail to boot. At this time, you should clean CPU heat sink and heat sink. There is dust inside case, try turning it on again after adding silicone grease, and see if it runs smoothly for a while.

Computer suddenly won't turn on? Simple tricks for solving problem

Older platforms such as "IVB" have relatively high heat dissipation and after years of use, too much dust builds up inside box, often causing CPU or graphics card to overheat and finally not being able to turn on computer. Patient comprehensive dust cleaning can not only "resurrect" your host, but also increase speed of entire machine to a certain extent.

2. Main hardware failure

Problems of this kind are more unpleasant and serious. As a rule, main equipment, such as CPU, motherboard or video card, fails. The problem is which part can be included after replacement. During warranty period, try to find a dealer to solve this kind of problem.

3. Undernutrition

Computer suddenly won't turn on? Simple tricks for solving problem

Problems of this kind usually occur when you first turn on a new machine. When efficiency requirements of whole machine exceed rated power of PC power supply or even higher, then whole machine is insufficient power supply, and fan of whole machine will turn 1, it will stop after 2 seconds, and then press power button to repeat this phenomenon. time it is necessary to replace power supply product with a higher rated power, and check whether original power supply has a false standard phenomenon; problem of insufficient power supply is relatively easy to solve.

Third, host alarm after power on

1. Memory problem

Currently, most motherboard post-boot alarms are related to memory issues. Insert it again and try turning it on. If alarm still occurs, remove motherboard BIOS button battery, discharge it after touching metal. object and then re-insert it into motherboard to try to turn it on. This kind of problem is actually very common in daily hosts. In a mainframe, you can boot successfully by inserting motherboards one by one, but if you insert them together, there will be errors synchronization and other problems. Currently, you can only try in parts.

Computer suddenly won't turn on? Simple tricks for solving problem

2. Invalid BIOS settings

Sometimes motherboard or system BIOS failure will trigger an alarm when restarting after a crash. If alarm still occurs after removing, discharging, and connecting battery, perform "memory problem" described above to resolve it.

3. Problems with video card and other hardware

If graphics card is not fully inserted, main board will beep "one long and two short". At this time, check if PCIE slot of graphics card is inserted correctly; If CPU is equipped with a built-in display, please completely remove discrete graphics card, use main board's screen output source to connect monitor, and try to boot, if it can boot normally and enter Windows page, then it can be preliminarily determined that graphics card is defective.

Computer suddenly won't turn on? Simple tricks for solving problem

Of course, improper use of CPU, graphics card, and memory will trigger motherboard alarm, but sound will be different. "One long and one short" is a RAM or motherboard error; "one long and two short". " is a problem with video card. Common; "one long and three short" is a peripheral controller, usually a problem with keyboard controller, this kind is relatively rare; a continuous short beep is a memory problem.

4. Can't login after download

1. Hard disk setup error

Many users now use a combination of an SSD and a mechanical hard drive when building a new machine, which can also meet dual needs of speed and capacity. However, once a new machine is built, replaced, or a new hard drive is added, you will find that it immediately enters BIOS after booting, but does not enter Windows working interface.

This is a very common problem. Currently, you need to enter motherboard BIOS first and select SSD in first column of HDD boot item first, so that you can read system into SSD first.

2. Invalid/incorrect BIOS settings

Many gamers adjust CPU and memory frequency, voltage, and other settings in motherboard BIOS. When user makes a mistake, host cannot enter Windows work interface. The full boot speed continues to rotate, and BIOS needs to be reset at this time, some hosts enter BIOS again, and after selecting boot disk, they still reboot and return to BIOS interface.

An easy way to finish is to restore default settings in BIOS. Overclocking failure can be caused by various reasons. I would like to advise netizens not to be serious. The key to long-term stability.

3. System boot error

The third situation where you cannot enter Windows interface but can enter BIOS is due to an SSD/HDD failure. After system disk fails, system will not be able to find startup items and will eventually return to BIOS interface forever. At this time, you need to determine if there is a problem with your hard disk and whether you can enter working interface after replacement.

4. Other common problems

*Monitor refresh rate cannot be increased

1. Wired connection is not supported

In rise of esports, many users use products with a display with a refresh rate of 144 or even higher, and after buying these new products at home to replace original display, original HDMI, DP and other cables cannot reach 144, 165Hz, etc. .Refresh rate, do not worry at this time, it is better to disassemble original wire in monitor box, connect it to host and try again, under normal circumstances, it mayguarantee a high refresh rate.

2. Old video cards are not supported

After many users' monitors were changed to 144Hz, due to outdated configuration of host computer, graphics card does not support high resolution and high refresh rate. Currently need to check, device needs to be updated. If there is no room to update Or reinstall new esports and game console.

*The USB connector on front panel is not easy to use

1. USB 3.0 socket on motherboard is loose/faulty

The most critical socket for a DIY console is CPU installation, carefully insert it into pins so as not to skew, then second most important is placement of USB 3.0 socket on motherboard.

There are many USB 3.0 pins on motherboard. Although cable connector insertion method is relatively simple, workmanship of original internal USB 3.0 connectors varies by chassis manufacturer. Some of them can be easily inserted, while others are very tight. When you insert it, you will inevitably hit a certain pin. The hidden danger in future is not only unusable USB 3.0 interface on front of case, but also hidden danger of burning the motherboard.

The above are solutions for a sudden computer crash. I hope reading this article will help you. If you still can't fix this kind of problem, contact a professional to have it repaired.