Why does the computer use the test card to show E9?

1. The diagnostic card shows that it is generally a problem with the BIOS of the motherboard, and it is good to re-flash the correct BIOS.

2. Motherboard fault diagnosis card: It is the detection results of the BIOS internal self-test program in the motherboard, which are displayed one by one, and the computer fault can be quickly known in combination with the basic reference table of the meaning of this book. Especially when the PC cannot boot the operating system, the screen is black, and the speaker does not call, the use of this card can reflect its convenience.

3. Computer motherboard fault diagnosis card.

1) The computer motherboard fault diagnosis card is specially produced for diagnosing computer faults.

2) Implementation principle.

When the BIOS wants to perform a certain test action, it first writes the self-test program (POST) of the laptop to the 80h address, and then writes the next self-test program if the test is successfully completed, so if an error or crash occurs, you can understand what the problem is according to the POST code value of the 80h address. The function of the computer diagnostic card is to read the post code in the 80h address, and decode it by the decoder, and finally display it by the digital tube.

This makes it possible to determine which part of the hardware is the problem by using the hexadecimal** displayed on the computer's diagnostic card, rather than relying only on the computer's monotonous warning sound to roughly determine the hardware error. It can be used to know the devices (such as memory, CPU, etc.) that did not pass the detection when the hardware was detected.

It should be a hardware conflict!! Try replugging it in.

But there is no sound of self-check? There may be a problem with the motherboard! My previous machine was also at a certain value. Yes, the motherboard does not support the graphics card!! But the theory supports !! It is a hardware conflict.

The motherboard is very old.

Not really. Let's change it again.

The computer uses the test card to show that the E9 may be caused by the following reasons:

Corrupted graphics card: An E9 error usually indicates a problem with the graphics card, either from a poor interface between the graphics card and the computer (e.g., unstable contact, damaged cables), or from a faulty or damaged graphics card itself.

Memory failure: Video memory is one of the most important components of a graphics card, and if the video memory is corrupted or malfunctioning, it can lead to an E9 error.

Wrong BIOS settings: There may be a problem with the computer's BIOS console settings, such as graphics card BIOS settings, graphics card parameter misconfiguration, etc., which may cause E9 errors.

For E9 errors, you can try the following methods to troubleshoot them:

Check the graphics card and computer interface and reconnect to make sure the connection is good.

Remove and reinstall the graphics card to make sure that the graphics card and slots are not loose or in poor contact.

Try replacing it with another available graphics card and retesting your PC.

Go to the BIOS settings screen and check whether the graphics card parameters have been modified or adjusted.

If you have tried all the above steps and still get the E9 error, it is recommended to call the technical support of the graphics card manufacturer or PC manufacturer** for consultation and handling.

e9 usually refers to a memory test error. This could be due to one of the following reasons:

Corrupted memory module: If a memory module is corrupted, then it may not be recognized or read correctly. In this case, you'll need to replace the memory module.

Incompatible memory: If you have an incompatible memory module installed, then it can cause problems with your computer. For example, if you upgrade a DDR3 memory module to a DDR2-only motherboard, an E9 error may occur.

In this case, you need to check if your motherboard and memory are compatible.

BIOS Setup Error: Sometimes, BIOS settings can cause memory test errors. You can try to go into the BIOS settings screen, see if there are any memory-related settings, and adjust them to the correct settings.

Other hardware failures: E9 errors can also be a symptom of other hardware failures, such as CPU, motherboard, or other component failures. In this case, you need to check your hardware device further to determine what the problem is.

Normally, when you use a computer to use the test card to show E9, most of the graphics card is damaged.

Most of them are faulty parts of the memory circuits.

It should be a hardware conflict!! Try replugging it in.

But there is no sound of self-check? There may be a problem with the motherboard! My previous machine was also at a certain value. Yes, the motherboard does not support the graphics card!! But the theory supports !! It is a hardware conflict.

The motherboard is very old.

Not really. Let's change it again.

This is a hardware conflict!!

1.Reinsert the graphics card.

2.Reinstall the driver of the graphics card.