No, reformatting does not harm hardware. You just loose all your stored data.
There can be hundreds of hardware problems, the most common i have come across is a faulty piece hardware attached witch can cause to you computer not starting properly
No, this can cause the computer to crash or experience problems. Remember Windows 7 needs a minimum of 1gb of ram
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just 2 things...software problems and hardware problems, if you think my answer is, i ask you what would cause a human sick?
Chassis is your computer case which helps on Neatly placed computer Hardware Air Flow so it gets to your Chip set and other hardware if ur computer gets to hot it will break ----------- with out a Chassis it can cause Electric problems like sort cerkit from cloths easyly to be destroy by dropping it cases will be able to protect your computer from damage with out a case it gets messy by stuff all over the place if your harddrive get disconnected while running it may cause problems like Operating System files corrupting ... hope this helps :)
The purpose of testing the hardware is very important before you install the operating system because is to make sure if your computer can handle the operating system with having any problems; like for example, slowing down, and constantly freezing up. Having the right hardware makes everything run smoothly and doing your tasks on the computer with ease. It is like putting premium lead into a unleaded gas tank of a car, the car won't be able to handle and may cause problems.
any hardware that is malfuncting can slow a computer down or even crash it
It can cause data loss, data corruption, or hardware failure. These do not always happen, but crashing a computer will make all 3 of these things more likely.
A power supply that is dying. They die slowly so one moment they are giving out the correct power the next they may be giving out half or none to some components.
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Yes, without RAM your computer would not turn on.
It should not cause you any problems if you replace it. The only forseeable problem would be if you have had your computer modded, on the new computer those settings would not be present..