I will upgrade my PC for that you can take everything except RAM and storage, what I have with me is
1. i3 6th Generation processor
2. i5 6th generation processor
2. Ovhu brand 450 watt power supply
3. Hunanji brand motherboard has a warranty of about two years. If you need you can take 128gb SSD
The processor cooling fan has a slight issue, three locks are broken but there is no problem with that, still no warranty history, call for details
Here the price of power supply, motherboard and i5 6th gen processor is given along with PC case free