It is very important to check for a used computer thoroughly before buying it because it can lead to problems in the future. A hard drive does not show outward signs, but may deteriorate. Similarly, the needle can suddenly slip and scratch the disc eventually leads to memory loss as a reason not to use the computer at any time. When enabled, errors that may occur must be known. Let us first consider the possible errors that occur when buying a computer can use.
Hard drive failure may be due to heavy wear and tear over time. Heads read and write the hard drive can be used to recover or re-encode the data on your hard drive using a flat disc rotating at high speed stored. In a period of time the risk of failure or malfunction of the increase in hard drive. Bad sectors on the disk can be determined only when a complete control of the surface of the computer is performed. The scanning time depends on the capacity and size of the hard drive of your computer. Many skip this step because of the long process of scanning the entire hard drive and end up buying a computer is used with a bad sector.
The monitors should be checked for errors. The failure of a monitor is called a "dry town" that does not work after the results of heating in the monitor. This can be controlled if the monitor is working for at least 20 or 30 minutes after turning on the computer.
Next is the ability of a CPU always look frozen. Normally, all CPUs have a heat sink and fan to keep the cooling unit. In a period of time, the fans might not work properly due to dust and dirt on heating duct to the CPU and even leads to stop working. When you buy a computer, the fan must be controlled if an unusual noise is heard, it is not good for the purchase.
The computer used to plant a better chance of getting frozen and the use of the operating system for a number of years. This may be an error of cache RAM or results due to exposure to data loss. To increase IT performance and prevent accidents, the operating system with a new computer or reinstall new operating system.
By examining the computers used for the error, you must separate the network connection, if necessary, before performing the test. It should also install the drive as a CD or DVD from the opening and closing the place and also to see something on the discs, while working on the revision. Monitor your computer can be used for the resolution and brightness, trying different options of colors, settings and so on controls. It can pass through in order to control the size of hard disk CMOS setup, and processor speed, cache and RAM on the pause button is pressed, if it is on the screen during the boot process to be controlled. To control the boot process, the computer turned on and off a couple of times and see how he reacts. The test must be performed to see if all passwords are removed before buying a used computer.
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