What to do if the motherboard is shorted

What should I do if the motherboard is shorted? Don't be afraid, the motherboard is not so fragile, the motherboard has a protective device, patience to read this article, and then go to check the motherboard it.

Motherboard short circuit what to do

What is the reason for the motherboard short circuit, how to solve it? We often remove the motherboard to clean, and so on when the time to forget the switch and reset button The row pin is how to plug, with the copper key in the row of pins on the sweep, saw sparks a flash, the motherboard has no movement.

Motherboard Short Circuit Resolution:

According to the description of the phenomenon analysis should be the power switch or reset key problems? Pull those plugs out and then use a metal chip to short-circuit the motherboard on the switch pin, or no movement. And then the power supply to remove the author's good power, but the fault is still.

Detach the motherboard from the chassis, remove the memory and CPU, and use the motherboard diagnostic card to diagnose it. Plug the "diagnostic card" into the motherboard expansion slot to power the motherboard, and there is no response on the "diagnostic card". decided to force power on the motherboard, on the main plug of the snap has a green line (some is gray), it and the side of the black line short connected to the power is started. On the back of the motherboard to find the Green line connected to the root cuttings pin, with tweezers to connect it with the black wire next to the root cuttings needle short together, the power on the instant "diagnostic card" on the power indicator lights flashed, it appears to be a short circuit board somewhere to make power protection device action.

But the motherboard is so big, components and so much from where to find out? Since there is a short-circuit exists, then it should be hot on the upper level, and constantly connect the two root cuttings pin, dozens of times after the first touch on the motherboard near the power plug near the components, found CET ceb6030l this pipe hot, It looks like either it's broken or it's near the component has a short circuit. It's good to use a soldering iron to remove it and use a multimeter to find it. A pipe like CET ceb6030l in a total of two near the CPU socket, it seems that the composition of the tube to the CPU power to adjust the role. Follow the line down and find HIP6018BCB this small integration block, if it burns short-circuit so cet ceb6030l is bound to heat. With a soldering iron and tin collector waste Dickens this integration block to remove, and then power on the motherboard found that the motherboard can power up, CET ceb6030l is not hot, it seems HIP6018BCB this integration block really bad.

Bought a piece of the same type of scrap board. Remove the HIP6018BCB on the scrap board to the friend's motherboard welding up, and then power on the motherboard, the "diagnostic card" on the power indicator shows that everything is normal. Installed on the CPU and memory after pressing the power switch, "diagnostic card" on the digital tube number began to beat, from "C1" to "03" to "05" and Back to "C1" began to circulate, it appears that the motherboard has more than one fault.

Turn on the "diagnostic card", which says, "If you repeat the manufacturing test 1 to 5, you can get 8042 control status." Find the "8042 control status" aspect of the information, all said very vague, to the effect is related to the input and output. The IC chip that controls the input and output on the motherboard is Winbondw83977ef-aw. Motherboard power on for a long time and it is not hot, such a large integration block will be bad? A little sure, but decided to try again. Dismantle this integration block by the author's iron and tin-absorbing device has been powerless, so to do mobile phone repair friends there, in his 850 hot-air soldering table will chip removed, and then the chip on the scrap plate welding up. The author once again the CPU and memory are installed, and then connected to the keyboard, monitor, open the power switch, after starting to enter the system smoothly, running the program is normal.

The motherboard short-circuit fault is also self-serviceable, requiring only basic electrician knowledge and simple equipment (e.g. "motherboard diagnostic card"). Although it is necessary to keep the inside of the computer chassis clean, it is recommended that you do not remove the motherboard when cleaning the computer chassis. If it is only dust, it is recommended that you can use a small brush swipe and then blow out the ash, conditional can be used to clean the handheld vacuum cleaner, so as not to cause unnecessary trouble.