If there is no display problem on the power supply, you can troubleshoot through the following steps: 1. Check the connection of the power supply and monitor; 2. Unplug all USB devices to test; 3. Users of independent graphics card try to use the graphics card; 4. Test the memory stick, keep the single root and replace the slot; 5. Reset the BIOS settings; 6. Try to write the BIOS or replace the BIOS chip; 7. Troubleshoot the fan connection and motherboard problems; 8. Replace the motherboard if necessary. The above methods can gradually locate hardware failures to avoid further damage caused by blind operations.

There is no display on the power supply, which is likely to be a hardware problem, but don’t panic. If you check it step by step, you can always find the reason.

Motherboard BIOS chip Flash aging check

First of all, the simplest thing is to make sure that the power cord is connected, the monitor cord is connected, and the monitor power is also turned on. Don't laugh, this kind of thing has happened to anyone.

Solution:

1. Troubleshooting of external devices: Unplug all USB devices, including keyboard and mouse. If the device can be turned on, the problem lies with a USB device. Scratch back one by one until the culprit is found.

2. Troubleshooting of independent graphics cards: If there is a separate graphics card, try to unplug it first and use the core graphics to start. If the machine is turned on, it is a graphics card problem. No clarified display? Try borrowing a graphics card from a friend.

3. Memory troubleshooting: Loose or damaged memory may also cause the computer to fail. Unplug all memory, leave only one, and try changing to a different slot. If there are multiple memory, take turns to test each one.

4. BIOS reset: There is usually a CMOS battery on the motherboard. Please wait for a few minutes before installing it back. You can reset the BIOS settings. Some motherboards have special BIOS reset buttons, which are more convenient.

5. BIOS chip Flash aging: This is the point of the title. The BIOS chip is responsible for starting the computer. If it is aging or damaged, it may cause the computer to not be turned on.

   • How to judge the aging of BIOS chip Flash? It is difficult to make direct judgments, and BIOS issues are usually considered after other issues are ruled out. If the power is frequently cut off or the BIOS is frequently brushed, it may accelerate the aging of the BIOS chip.
   • How to solve the aging of BIOS chip Flash?
     • Try to flash BIOS: If the motherboard supports flashing BIOS without CPU (usually called BIOS Flashback), you can try to flash BIOS. For specific methods, please refer to the motherboard manual.
     • Replace the BIOS chip: If it is useless to brush the BIOS, you may need to replace the BIOS chip. You can find a professional repair shop to replace it, or you can buy BIOS chips yourself to replace it. Note that replacing the BIOS chip requires a certain amount of hands-on ability.
     • Replace the motherboard: If none of the above methods work, the motherboard may be damaged, so you can only replace the motherboard.

6. CPU problem: The possibility of CPU damage is relatively small, but it is not impossible. If none of the above methods work, you can consider CPU issues.

The Shadow Elf host is powered on and there is no display. The power indicator light is on, but the fan does not turn?

The power indicator light is on, which means that the power supply is normal. The failure of the fan may be a problem with the fan itself, or the motherboard does not send a start signal.

• Check fan connection: Make sure the fan is connected to the correct interface on the motherboard.
• Check whether the fan is damaged: You can use your hand to move the fan blades to see if they are stuck.
• Check the motherboard: If the fan is fine, it may be that the motherboard does not issue a startup signal. This situation is quite complicated and may require professional repairs.

How to safely brush BIOS?

There are risks in brushing the BIOS, and improper operation may cause the motherboard to become bricked.

• Download the correct BIOS file: Be sure to download the corresponding BIOS file from the official motherboard website.
• Use the correct BIOS brushing tool: Different motherboards have different BIOS brushing tools, follow the motherboard instructions.
• Ensure the power supply is stable: Do not lose power during the BIOS flashing process. UPS power is recommended.
• Backup old BIOS: If the refresh BIOS tool supports backup old BIOS, be sure to back up.

What tools and skills are required to replace a BIOS chip?

Replacing the BIOS chip requires a certain amount of hands-on ability and tools.

• Tools: hot air gun, tweezers, programmer (optional), new BIOS chip.
• Skills: welding technology, electronic circuit knowledge.
• step:
  1. Heat the BIOS chip with a hot air gun to melt its solder.
  2. Carefully remove the BIOS chip with tweezers.
  3. Clean the remaining solder on the pad.
  4. Align the new BIOS chip with the pads and heat it with a hot air gun.
  5. If the new BIOS chip is empty, you need to use a programmer to burn the BIOS file.

How to avoid the aging of BIOS chip Flash?

Aging of BIOS chip Flash is inevitable, but some measures can be taken to delay aging.

• Avoid frequent power outages: Frequent power outages can cause damage to the BIOS chip.
• Do not brush the BIOS frequently: unless necessary, do not brush the BIOS frequently.
• Use a good quality power supply: A good quality power supply can provide a stable voltage and reduce damage to the BIOS chip.
• Keep your computer ventilated: Overheating can also accelerate the aging of the BIOS chip.

Finally, if all the above methods are ineffective, it is recommended to find a professional repair shop for inspection and repair.

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