What should i upgrade next?

[Pr0_ph3t]

PC Specs:

CPU: I5-4400 3.10 ghz

GPU: GTX 1060 6GB

MoBo: Gigabyte Z97-HD3

RAM: HyperX 8GB 1600mhz

PSU: Sentey 625W

 

[Dark Lord of Tech]

Sentey 625W ...I would get a decent PSU.

 

[Hardware Brad]

This hardware is still pretty good. Are you unhappy with the performance of the system? Are games lagging for you or not up to your standards? The system you have is a solid 1080p@60fps machine. So unless you are unhappy with it, I don't see a reason to upgrade at this time, unless like SR-71 Blackbird said, go with a seasonic 600w 80plus gold or better PSU

 

[Colethelion321]

PC Specs:

CPU: I5-4400 3.10 ghz

GPU: GTX 1060 6GB

MoBo: Gigabyte Z97-HD3

RAM: HyperX 8GB 1600mhz

PSU: Sentey 625W

unless theres something wrong with the system..nothing. unless you are looking to just slap some stuff, then I would do ram.

 

[SkyNetRising]

What should i upgrade next?

Get SSD, if you don't have it already.

Also you could upgrade your ram to 16GB.

 

[BenJaD]

PC Specs:

CPU: I5-4400 3.10 ghz

GPU: GTX 1060 6GB

MoBo: Gigabyte Z97-HD3

RAM: HyperX 8GB 1600mhz

PSU: Sentey 625W

Without knowing your desired performance, or for what, it is less than clear what the long term objective is. So, my personal upgrade would be another 8Gb of memory - a stick identical to what you have on the board now would be best.
Having that in place, and not aware of your current storage configuration I assume you are using a HDD as primary drive for OS and ?? From personal experience replacing an OS homed on a HDD to a SSD makes a noticeable improvement of OS load and access timings.
I have no idea on the PSU ranking as opposed to other available reliable PSUs. Seems to me that you have an adequate wattage for your current configuration, even with adding SSD and RAM. If you are concerned about the health or lifespan of your current PSU, decide what you would like to have as a replacement, mind the sales, pick up a name brand at a good sale price and put it on the shelf until your current PSU expires, or gets flaky and you have to replace it. In my mind replacing PSU on an operating system is a major PITA - wouldn't wish it on an evil enemy. Oh, and make sure what you pick up is fully modular - once you have strung power cables everywhere you want them to be - modular will ensure you won't have to change them if the PSU fries out ---

 

[Karadjgne]

Psu to something reliable, 450-550w
Ssd for OS
Ram to 16Gb.

Anything else is cosmetic, so you could upgrade the cpu cooler, case, case fans, add leds etc.