Apart from the early 2000s, I have been using the same PC since 2009! The only parts I have replaced have died from old age.

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Dell Studio XPS 8300 Core
3.4GHz Intel Core i7 2600
Nvidia GTX 1050-Ti GPU

Deaths:
Original GPU
Original Monitor, Keyboard, Mouse, & Speakers
Original Network Adapter
Origional RAM Sticks #3 & #4

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