How long have you been using your computer? If you have used three or five years, it is estimated that you are already considering upgrading it, is upgrading the processor? Graphics card? Or add some memory? Wait a minute, don’t be in a hurry, if the hand surplus, I suggest that we should first look at these relatively short life of the accessories, is not already necessary to upgrade the update, and then consider upgrading the performance of it.
The second is actually not too much attention to the power supply, but it is the only part of the chassis to withstand the 220V voltage, this voltage is at least 18.33 times the voltage of other internal accessories (3.3V, 5V, 12V). So the stable life of the power supply is actually only about 5 years, to this age we have to pay attention to monitor the output voltage value and stability, once the wrong head will have to be replaced.
The last one is SSD. 5 years ago the mainstream SSD or about 128GB, even if the number of erasures reached more than 1000 times the MLC particles, the normal use of 8 hours a day, 5 years will also use up half of the number of erasures. High intensity use or TLC particles will be closer to the life limit. This is the time to consider buying a new SSD and replacing the old one from an important position like the system disk.
As for the common other accessories, if not overclocked, pay attention to heat dissipation, with 10 years will not be a problem. Just frequently plugged interfaces and motherboard slots may be more serious wear and tear, you can use high-quality USB, headset adapter cable, do not plug the original interface again frequently, you can also replace the commonly used motherboard slots, such as the memory from 1, 3 to 2, 4 slots, hard disk for other SATA port.