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Used Computer Buying In 5 Easy Steps
Buying a used personal computer is a fantastic way to save money as long as you are cautious about which computer you buy. The biggest worry with purchasing used computer is that shortly after you get it all set up and running it crashes. Below are few of the primary items to check prior to buying a used computer. Getting a used computer is also an excellent way to get a machine loaded with upgrades such as a USB TV tuner for very little or for free.
Hard drives are probably the most critical component of any computer because a failure can mean losing your data. The problem with inspecting hard drives is that many of the failures are due to mechanical issues that cannot be detected without opening the hard drive case is not recommended. So a hard drive that will failure very soon may not show any outward signs that it is deteriorating. There are a number of mechanical components in hard drives that can fail. Hard drive failures can also be caused by heavy wear and tear. The high speed which modern disk drives spin at mean the read and write head is a common part of a disk drive to fail. Over a time the risk of failure or malfunction of a hard disk increases.
Full system hard drive scans can detect and repair potential problems with hard drives. Certain bad disk sectors are easily detected and repaired by performing a full system scan. The scanning time depends on the capacity and size of the hard disk of the used computer. Full system scans can take several hours making it difficult to perform before buying a computer in some instances. It is not advisable to skip this step.
Another component to inspect is the central processing unit (CPU). CPUs can freeze completely or cease to operate properly. Freezing can occur due to overheating. Computers have a fan and heat sink to keep the CPU from overheating but fans can wear out and dust build up can keep them from operating properly. It is fairly easy to check if the fan is functioning properly by listening to it and looking for excessive dust. When functioning properly, a fan should produce a quiet, consistent sound. A fan that is not working properly will often emit an uneven sound in volume or tone.
If you are buying a monitor it should have crisp colors and be bright. A monitor that is close to failing will often have dull colors and will not be crisp. Monitors should not flutter or have lines and should not make more than a very low hum. The health of a monitor is even more crucial if the computer has a USB digital TV tuner.
The operating system should also be checked. An operating systems performance can decline over time. The registry can also become cluttered with deleted programs. More most people about the only way to inspect a computers operating system is to reboot is several times. A computer that takes an excessive amount of time to boot up can be a sign of an operating system that needs attention. Probably the best option after you purchase the computer is, if you are comfortable with it, to reformat the hard drive and reload the operating system and all drivers and programs.
Any other hardware should also be inspected. This includes, devises like CD or DVD drives, the drawers should open and close smoothing and you should be able to read data from a disc and if they are writable drives you should be able to write to a disc. Other items that should be inspected are the USB TV tuner card, mouse and keyboard.
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