built pc won't start

[Proprietary]

I know this is a very generic question... but this is my first build, so please help...

I hit the power button and nothing happened, no fan, no screen, except for a small LED on my case that lit up. All my components are newly bought from amazon, so there probably aren't any DOA components. Here is what I've done so far:

I installed ram, making sure both sides clicked in.

Installed my cpu core, following the notches on the socket. 

Applied thermal paste and installed a cooler. 

Screwed my motherboard to the risers on my case and added an IO shield

Wired all my front panel cables: pwr led, pwr sw, hdd led, reset, usb3, usb2, hd audio and sys/cpu fan cables to the correct headers

Installed my PSU, powering my mobo with a 24pin and my cpu with a 4+4

Installed a nvme m.2.

Finally I connected my monitor to my IO using a hdmi 

I haven't added a graphics card yet. 

Am I missing any steps?

[TheBean]

what psu?

[Fasauceome]

11 minutes ago, Proprietary said:

All my components are newly bought from amazon, so there probably aren't any DOA components

I wouldn't rule that out so fast. Not like Amazon has magically lower DOA rates than other retailers.

[Proprietary]

3 minutes ago, Saksham said:

what psu?

https://www.amazon.com/gp/product/B00FZLD2O0/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

1 minute ago, fasauceome said:

I wouldn't rule that out so fast. Not like Amazon has magically lower DOA rates than other retailers.

At least they aren't ebay used ones...

[TheBean]

unplug everything. put it together again. 

also make sure that the front panel is plugged in the correct way. 

[Fasauceome]

1 minute ago, Proprietary said:

At least they aren't ebay used ones...

I buy so much hardware from eBay, never had an issue like that before. Try to find out what parts may be malfunctioning, if any.

[Proprietary]

I found the issue!!!!

Turns out that I connected my front panel wires to JFP2 instead of JFP1. I assumed that the left-bottom one would be JFP1. Turns out that was JFP2...