Laptop Fault finding & repair methods

1, laptop repair failure - phenomenon: no power
no response by pressing the power switch
laptop repair - major fault location: the power, the power switch, power board, board .

2, the notebook breakdown maintenance - phenomenon: Power is off after power indicator light, the display No response notebook repair - major fault location: BIOS, CPU, motherboards, graphics cards, memory, signal line.

3, laptop repair failure - phenomenon: dark screen after boot, the screen is very dark laptop repair - major fault areas: the motherboard, the signal line , pressure plate, LCD backlight tube .

How to make hard drive faster and make the system more stable

First, the rational use of hard disk drives do what is fair use? First we need to understand the physical structure of hard disc. Partition and format the hard disk after it is the basic unit of volume, a partition is composed of a number of sectors. So what is the magnetic area? We all know that when the disk is rotating at work, it stores the information is recorded by a series of concentric circles on its surface, each concentric circle is called a track, we can see in Figure 1 track and volume of distribution (of course, this is just a sketch only, in-kind is much more dense than the figure!), many of my friends think that the red "big man" is a sector, but the correct understanding is that the small yellow as a sector.