Dad needed an upgrade, he was running on my old small laptop and it was dying.
These are the parts I built him under $500.
CPU: Intel Pentium G4560 3.5GHz Dual-Core Processor
Motherboard: MSI B250M PRO-VDH Micro ATX LGA1151 Motherboard
Memory: Crucial 8GB (2 x 4GB) DDR4-2133 Memory
Optical Drive: Asus DRW-24D5MT DVD/CD Writer
PSU: FSP 500W OEM 80PLUS Bronze EU Power Supply
Total: Under $500
Whilst I was building it, it didn’t seem to boot up. For a day, I troubleshoot and couldn’t find the issue. Initially, I thought it was the power supply but it wasn’t. At first, I plugged the case power led, sound, hdd power leads into the wrong pins. I first corrected that then the second issue was the PCIe slot side pin was pushed down accidentally as it was installing an invisible graphics card. All resolved within 2 days.