[SOLVED] Help finding a good monitor

Solution
You don't want that BR power supply. The rest of the build looks surprisingly good, for the budget, except for that PSU. Low quality. Won't last very long at all and doesn't meet the recommended capacity specs for the RX 570 anyhow, which is a minimum of a 500w unit. A GOOD 500w unit.

I'd do something like this:

PCPartPicker Part List

CPU: AMD - Ryzen 5 1600 3.2 GHz 6-Core Processor ($118.99 @ Amazon)
Motherboard: ASRock - B450M PRO4 Micro ATX AM4 Motherboard ($75.61 @ OutletPC)
Memory: G.Skill - Ripjaws V 16 GB (2 x 8 GB) DDR4-3000 Memory ($80.98 @ Newegg)
Storage: Patriot - Scorch 256 GB M.2-2280 Solid State Drive ($34.99 @ Newegg)
Storage: Western...
You don't want that BR power supply. The rest of the build looks surprisingly good, for the budget, except for that PSU. Low quality. Won't last very long at all and doesn't meet the recommended capacity specs for the RX 570 anyhow, which is a minimum of a 500w unit. A GOOD 500w unit.

I'd do something like this:

PCPartPicker Part List

CPU: AMD - Ryzen 5 1600 3.2 GHz 6-Core Processor ($118.99 @ Amazon)
Motherboard: ASRock - B450M PRO4 Micro ATX AM4 Motherboard ($75.61 @ OutletPC)
Memory: G.Skill - Ripjaws V 16 GB (2 x 8 GB) DDR4-3000 Memory ($80.98 @ Newegg)
Storage: Patriot - Scorch 256 GB M.2-2280 Solid State Drive ($34.99 @ Newegg)
Storage: Western Digital - Caviar Blue 1 TB 3.5" 7200RPM Internal Hard Drive ($44.89 @ OutletPC)
Video Card: MSI - Radeon RX 570 8 GB ARMOR OC Video Card ($139.99 @ Newegg)
Case: Fractal Design - Focus G (Black) ATX Mid Tower Case ($49.83 @ Amazon)
Power Supply: Corsair - CX (2017) 550 W 80+ Bronze Certified ATX Power Supply ($54.99 @ Amazon)
Monitor: Asus - VP248QGL 24.0" 1920x1080 75 Hz Monitor ($149.89 @ SuperBiiz)
Total: $750.16
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-05-11 02:17 EDT-0400
 
Solution
Because that is what is recommended for it if you want to avoid having problems with power delivery, especially if you don't buy an exceptional PSU. If you bought something like a Seasonic Focus plus gold unit you could probably get away, maybe, with something more like a 450w model, but you would be leaving yourself very little room for quiet operation of the PSU, a comfort zone for voltage spikes, out of spec current draw, etc.

http://www.realhardtechx.com/index_archivos/Page362.htm