A checklist for used computers

It is very important to check carefully used computer before buy you it as it can lead to problems in the future. A hard disk will show not any outdoor signs, but may be deteriorating. Similarly the needle can sudden slip and can cause scratches on the disc, leading eventually to the loss of memory as used computers can fail at any time. If true, the anomalies that may occur can be known. First, let's look at the possible failures that can occur when buying a used computer.

Hard drive failures may occur due to heavy wear over a period of time. Read and write to a hard disk heads are used to extract or recode data stored on the hard drive with a tray of disk rotating at high speed. Over a period of time the risk of failure or disk failure increases. Defective sectors hard drives can find only if a full surface analysis is performed on your computer. Scanning time depends on the capacity and the size of the hard drive of your computer. Many ignore this procedure because of the time-consuming process of scanning the entire disk and the end of the purchase of a computer used with a bad sector.

The monitors must be checked for any anomalies. Dysfunction of a monitor is called a "joint dry", which translates the monitor does not step after getting heated. This can be checked only if the monitor is made to work for at least 20 to 30 minutes after switching on the computer.

Then is to examine the possibilities of the central processing unit hang. Normally, all central processing units have a fan and heat sink to keep the unit cool. Over a period of time that fans may not function properly due to the accumulation of dust and dirt resulting CPU heating and even leading to stop functioning. When buying a used computer fan must be verified and if you hear an abnormal noise, it is not good purchase.

The computer may have a higher possibility of obtaining plant and block due to the use of the operating system for many years. There may be a cache or RAM fault due to exposure to data loss. To increase computer performance and to avoid problems of failure, the operating system of your computer can be reinstalled with a new operating system or a fresh.

While checking the computers used for any anomalies, it is good to disconnect the network connection if everything present prior to testing. You should also check the drives such as CD or DVD in opening and closing the and also playing something on disks to see how they work. Used computer monitors can be verified for resolution and brightness by trying different color options settings and so forth. To check the size of the hard disk configuration CMOS can be experienced and to confirm the processor speed, cache and RAM button pause is pressed when it appears on the screen during the startup process. To check the boot process, the computer can be activated and deactivated several times and seen how it responds. Shall be checked to see if all passwords are erased before buying a used computer.