Onda A78GT 128M version of the fault indicator at the rear jack position

Personally, I suggest that you try to change a few more memory first.,I'm also using an A78GT motherboard.,I've tried this before.,Black screen when you boot up.,There's no display at all.,You can turn on and play and play with it will suddenly go black.,BIOS brushed.,The system has been reinstalled.,I almost changed the motherboard.,Finally, I found out that it was the reason for the memory.,It's okay to change one.。

Of course, since you said that you have changed the memory, it is not excluded that there are other reasons, and then the system has been replaced, then the system is excluded, and the power supply can generally be excluded. You said that you haven't flashed the BIOS, it is recommended to give it a try, the power supply module of the A78GT is an all-solid-state capacitor, and it is estimated that there is no problem of bursting pulp.

In addition, the black screen at startup, based on experience, is generally a problem with the graphics card, memory or motherboard, A78GT is an integrated motherboard, the graphics card is integrated in the North Bridge, and the motherboard is also suspicious. Of course, hard drive bad sectors are also one of the considerations.

If the voltage is unstable, I personally think that although it is possible, it is not realistic, because your computer has been used for a certain time, and if the voltage is unstable, there should be a problem early (memory is more sensitive to voltage changes).

If it really doesn't work, it is recommended to send it for repair, because this kind of problem can be really maddening sometimes.

I used it for 4 years. It's okay! Personally, I feel good!

This board is super rubbish.,I'm the same as you.,Crash.,Blue screen.,It's all embodied in it.。。。

Hello! You can discharge the CMOS and restore the BIOS to factory settings! There are many ways to do this, and here are two of them:

A: Use the CMOS discharge jumper: It is to put the CMOS jumper on the motherboard (located near the CMOS battery socket of the motherboard, and attach the battery discharge instructions.

In the default state of the motherboard, the jumper cap will be connected to the pins marked "1" and "2", which can be known from the discharge instructions as "normal", that is, the normal use state. To use this jumper to discharge, first pull the jumper cap from the pins of "1" and "2" with tweezers or other tools, and then put it on the pins marked "2" and "3" to connect them. After a short period of contact, the user's manual settings in the BIOS can be erased and the motherboard can be restored to the default settings when the motherboard left the factory.

B: Short the positive and negative poles of the battery socket: first take out the CMOS battery, and then, find a conductor to connect the positive and negative poles on the CMOS battery socket, and after a period of time, it will cause a short circuit, and the purpose of discharge will be achieved!

Hope it helps!