Question psu for this bulid :

[AtNnN]

cpu : INTEL i5-4590 s.1150 QUAD CORE
4x3.3GHZ, 6MB L2 CACHE,
TURBO SPEED 4X3.7GHZ MB ASROCK H81M-VG4 R3.0 s.1150
16GB DDR3
120GB KINGSTON
1 tb hdd
GPU: PCI-E,
ASUS STRIX GTX1060 6GB GAMING
6144MB 192BIT
DVI-D, 2xHDMI,2x DP
a 400 psu is provided for this bulid but idk if i should i change it or not and i need your help also the OS is windows 10 pro 64x

 

[Barty1884]

Which "400" PSU? I'm not aware of any good units that are stated to be 400W on the nose.

A quality 400-450W range would be plenty sufficient for that build, but I would have doubts on the quality of anything labelled "400W".

PCPartPicker part list / Price breakdown by merchant

Power Supply: Corsair - CX (2017) 450 W 80+ Bronze Certified ATX Power Supply ($19.99 @ Newegg)
Total: $19.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-03-04 17:34 EST-0500

 

[Printer Paper]

400W would be plenty for that build like Barty said. But again, you have to take into account the quality. If you can afford to buy a higher wattage PSU you should. A higher wattage PSU would definitely help you out in the long run and if you are planning to upgrade your PC later on. Better parts will require better wattage to run well and reach their maximum potential. Those are my thoughts on it.