How to judge whether the north bridge damaged ?

Chipset is one of the most important components of computer motherboards, it has two kinds of model, south bridge and north bridge. Chipset is one of the most easily broken components, too. So, here we share some fast identifying method whether north bridge damaged. 

1, Direct measuring the capacitances on north bridge. If there is short circuit, then the north bridge was damaged. ....read more

Computer automatically boot when connected to AC power, why?

A new computer connected to AC power every time, did not press the power button, but it  automatically started, the system is normal, everything is ok. But why it automatically starts when connected to AC power every time?.... read more

Do you use reballing chip to repair computer ?

What's reballing chip ? First it is bga, in fact, the reballing chip is used chip, renew welding solder balls, sometimes it may be refurbished.... read more

How to solve gpu thermal defects of DELL 1400, 1420 , D620 ?

Computer maintenance engineers know some old laptop have graphics card failure. such as DELL 1400, 1420 , D620 ect , The graphics card often appears crash problem, In fact , .... read more

The computer automatically restarts, why?

The computer always restarts automatically, what's the reason?

Usually we may try to check the following several aspects: .... read more

Share repair data: some parameters of nvidia gpu

What's gpu ? It's full name is Graphic Processing Unit, gpu is one of the most important chips of motherboard. Usually there are two kinds of model gpu, nvidia gpu and ati gpu, amd has merged ati already, and ati gpu is called vpu, too. .... read more

Do you know how to use the two most important diagnostic tools ?

Now, the computer fault has been more and more complex, this is a challenge for every repair engineer, in addition to relying on the repair experience, we need some repair tool, too. 

The fault diagnostic card is very good tool, ....read more