The computer is replaced with a new motherboard and the U light does not light up?

First try to see if you can light up with only the new motherboard, you and memory, and these three can be lit up under normal circumstances.

You need to redo the system, and if you change the motherboard and CPU, the original driver is not suitable.

Hello, it can be judged according to the following situation.

1.Choose a new motherboard, CPU, and memory to test whether the machine can light up.

If you can light it up, it's a system problem.,That's according to win10's operation matching logic is completely able to enter the system.,If it's a win7 system, you have to reboot the partition MBR partition,If the MBR partition doesn't know how to get,You ask me to teach you。

2.If it can't be lit, you have to give priority to whether the new motherboard has been damaged during transportation.

There is also a situation where you originally used the AMD platform and changed to the Intel platform, but your memory is AMD-specific bar, which will not light up.

Generally, there are more users who switch from the original AMD platform to the Intel platform, so you can check it yourself according to the judgment methods I gave.

Hello, pro according to the description of the problem you provided: the possible causes are as follows:1

Power connection issues: First, you need to make sure that the power cord is properly connected to the power slot on the motherboard. Check that the power connection is complete and not loose or broken.

2.Power switch issue: Check whether the power switch is turned on.

Sometimes, we forget to turn on the power switch, which causes the computer to not boot. 3.Memory module issues:

If the memory module is not installed properly or is damaged, the motherboard will not boot. Verify that the memory module slot is inserted correctly and that the memory module is not damaged or in poor contact. 4.

CPU Issues: If the CPU is not installed properly or damaged, the motherboard will not boot. Please make sure that the CPU is properly installed on the motherboard and that it is not bent, damaged, or otherwise abnormal.

5.Graphics card issues: If you are using a discrete graphics card and it is not installed properly or is damaged, it can also cause the motherboard to fail to boot.

Please check that the graphics card is properly inserted into the PCI-E slot and is not damaged.

If you have replaced your motherboard and CPU with a new one, but your computer won't boot or the display has no signal, there are a few common reasons:1Power connection issues:

Make sure that all power cables are properly connected to the motherboard and other hardware devices, including the motherboard power connection, CPU power connection, graphics card power connection, etc. Check whether the power cord is plugged in tightly and whether the power switch is turned on. 2.

Memory installation issues: Make sure the memory modules are properly installed on the corresponding slots on the motherboard and plugged in tightly. If you have more than one memory module, try plugging in only one memory module to test to see if one of the memory modules is faulty.

3.Graphics card issues: If your CPU doesn't have an integrated graphics card and instead uses a discrete graphics card, make sure the graphics card is properly installed on the PCI-E slot on the motherboard and plugged in tightly.

If you have more than one graphics card slot, try testing with different slots. 4.BIOS Settings Search Zen Question:

The new motherboard needs to update the BIOS to be compatible with the new CPU. Please check the motherboard's manual or official ** to find out if you need to update the BIOS, and follow the instructions. 5.

Other hardware failures: In addition to the motherboard and CPU, other hardware devices will also fail and leak, causing the computer to fail to boot. You can try disconnecting other devices (such as hard disks, optical drives, etc.) and connecting only necessary devices (such as CPU, memory, graphics card) for testing to determine if there are other hardware failures.

If you still can't solve the problem after trying the above methods, you can contact the customer service or technical support of the motherboard or computer brand and provide them with specific hardware information and a description of the problem for more professional help and guidance.

Summary. There is also the power supply circuit is not connected, check the graphics card auxiliary power supply interface is loose, this is the most likely situation, and the system needs to be installed. The fan of the chassis power supply does not rotate because the power strip switch is not turned on or the chassis power supply has been damaged.

Faced with this situation, a new chassis power supply can be purchased to be replaced. With a little more hands-on ability, you can disassemble the chassis and use a multimeter to measure the voltage at the output end of the chassis power supply. If there is no output voltage, the case power supply is indeed broken.

Yes If the output voltage is correct, the case fan is broken.

After changing the CPU of the motherboard, the computer does not light up.

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The computer does not light up the memory module contact is poor, there is static electricity at the interface part Re-re-insert, the eraser memory module is incompatible, the slot location is wrong, you should use 2-4 slot memory modules to unplug the power supply first, empty the motherboard battery, and then turn on after a few minutes.

There is also the power supply circuit is not connected, check the graphics card auxiliary power supply interface is loose, this is the most likely situation, and the system needs to be installed. The fan of the chassis power supply does not rotate because the power strip switch is not turned on or the chassis power supply has been damaged. Faced with this situation, a new chassis power supply can be purchased to be replaced.

With a little more hands-on ability, you can disassemble the chassis and use a multimeter to measure the voltage at the output end of the chassis power supply. If there is no output voltage, the case power supply is indeed broken. Yes If the output voltage is correct, the case fan is broken.

1. Turn on the power supply to check whether the power fan is rotating.

2. Reseat the 20P power cord that supplies power to the motherboard.

3. If the motherboard still does not respond after unplugging and unplugging the boot, it means that there is a problem with the motherboard.

4. It is recommended to repair or replace.

Here are some things you can try:

1. Turn on the power supply to check whether the power fan is rotating.

2. Reseat the 20P power cord that supplies power to the motherboard.

3. If the motherboard still does not respond after unplugging and unplugging the boot, it means that there is a problem with the motherboard.

4. It is recommended to repair or replace.

Further reading: When replacing the motherboard of the computer, you need to pay attention to the CPU, display output, memory slot and other interfaces, as well as the need for an onboard integrated display.

When choosing a motherboard with some accessories, you need to pay attention to the following points:

1. Specifications and expandability of the motherboard:

Motherboards should be selected according to the size of the chassis you want to match, motherboards with larger specifications generally have better expansion performance, and the general motherboard sizes are as follows:

Large motherboard: ATX size is around . Small motherboard: Mirco-ATX size is around .

ITX motherboards are very rare to see smaller motherboards: Mini-ITX sizes around 17cm and 17cm. No matter how small the motherboard is, it is rare : the size of the baby-ITX is around 12cm 12cm.

2. Interface specifications supported by the motherboard:

CPU interface: First of all, Intel and AMD distinguish the platform of the motherboard, and then there are many kinds of processor interfaces for each platform, corresponding to different packaged processors, and different packaged processors and interfaces cannot be mixed.

Memory slots: Memory interfaces are currently DDR3 and DDR4 on the market, some old machines use DDR2, DDR interfaces have been eliminated for a long time, different generations of memory slots can not be mixed and can not be inserted, the larger the larger the memory of the larger the larger the memory slots of the large board, the small board generally only has 1 2 slots, and the large board has 4 or more.

Graphics card slot: PCIe slot, graphics card can be inserted in, and the version of PCIe slot bandwidth is higher.

Hard disk interface: The mainstream is that the SATA3 interface can meet the needs of SSDs, SATA2 with SSD has a bottleneck, and some mid-to-high-end motherboards are also equipped with MSATA, Express, and PCI-E hard disk interfaces.

3. Additional functions of the motherboard:

Some motherboards come with a better integrated graphics card, which can be used without a discrete graphics card.

More PCI slots can be installed with a separate sound card to improve sound quality, or it can be used to replace the network card expansion if the onboard network card is damaged.

Motherboard model, original motherboard model. Processor model. And so on there is no information.

According to the description, the motherboard did not start, so find a professional maintenance personnel to take a look.

Depending on your situation.

It can be inferred that: 1. The new motherboard is not plugged in with a jumper.

2. The new motherboard is broken.

3. If the power supply is broken, first rule out the first one:

It is also the most important genus.

The landlord can see that from the chassis power switch.

There are several threads. Divide into 3 x 2 at the location where the motherboard is connected.

1 piece of 4. There will be a slight difference)

Respectively: power

SAW (power button), REST

SAW (restart button).

powerleed, heel hard

The same goes for LEED (hard disk light).

The landlord can take a closer look at the motherboard.

There are several threads on it that correspond to these lines.

How do you find these needles? There are several colors.

It is divided into two rows, one of which is more than one row.

Then take a closer look around the needles.

There will be a small sign.

It's a form of Tian character grid.

Inside corresponds to the letters on the line.

Plug it in like this, and it hasn't been reflected when you boot up? Need to change the power supply or motherboard to try, I hope the landlord will give the best.

It's hard work to type these words.

Possibly, but unlikely. The CPU is the least problematic piece of hardware.

The motherboard cannot be lit, which has more to do with the motherboard's memory and power supply.

You can put the CPU on another motherboard and try it.

In general, CPUs don't break easily.

If the CPU is broken, the heatsink may burn out, the motherboard may be damaged, and the power supply may be damaged ......If these parts are okay, the CPU won't break.

Eliminate the method one by one to simplify the hardware Leave the motherboard power supply CPU to see if the alarm does not alarm the CPU does not pass the alarm Plug in the memory and try again.

Award BIOS only has a beep alarm when there is a problem with the memory and VGA card, so if you hear a beep sound, you should first check whether your RAM or VGA card is plugged in, in most cases, reinserting it will solve the problem. If the problem still can't be ruled out, you can borrow a VGA card from someone else and reinsert it on the motherboard to try it out, so that you can judge whether the VGA card is broken.

If you have more than two RAM modules, please try to install only one, if you plug one of them and it crashes, then the culprit is here! However, many times it is caused by poor contact of the memory slot on the motherboard, so it is recommended that you change the memory slot and try to reinsert the memory.

Alarm Sound Alarm Sound Meaning.

1 Short The system starts normally, indicating that there is nothing wrong with the machine.

2 Short There is a problem with the general settings, please go to CMOS Setup and reset the incorrect options.

1 Long 1 Short RAM or motherboard error. Try to change the memory, if it still doesn't work, you have to change the motherboard.

1 long 2 short monitor or graphics card error, detect graphics card and display.

1 long 3 short keyboard controller error. Check the motherboard and contact the merchant.

1 long 9 short Motherboard flash RAM or EPROM error, BIOS corruption. Contact the merchant and try a different flash ram.

Constantly ringing (long sound) memory or vga has a problem with one of them. The memory module is not plugged in tightly or damaged. If it still doesn't work, you can only replace a memory module.

Constant alarm The power supply and display are not properly connected to the graphics card. Check all the plugs.

Repeating short rings Power issues.

No sound, no display, power issue.

According to the analysis of the landlord, the probability of hardware damage is not large.

Take off the memory and graphics card, wipe it, press it, and fix it.

Remove the CMOS jumper cap and motherboard battery, and put it on after 1 minute.

If you have a problem with the graphics card, reinsert the graphics card, and if it doesn't work, try a different graphics card.