How to make a computer last years?

i am planing on buying a new desktop (dell) and i want it to last for years (atleast 3 years but 5-6 will be awesome) what could i do to make sure that my computer will last that long? please answer any info is helpfull ***what i plan on doing with the computer is upgrading the powersupply, and graphic... show more i am planing on buying a new desktop (dell) and i want it to last for years (atleast 3 years but 5-6 will be awesome)

what could i do to make sure that my computer will last that long?

please answer any info is helpfull



***what i plan on doing with the computer is upgrading the powersupply, and graphic card to play games (oblivion is the most graphic game ill be playing unless i can play skyrim in low detail)***

i turn off the computer when im not using it, i also unplug the power cable when it is off too


please give information on how to make it last for years
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