New PC build, won't post, mobo lights up

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Hey all, my ASUS PRIME Z270-K motherboard lights up in amber color when I plug in the PC and turn on the power supply. When I press the power button on the case, nothing else happens. No post. No beeps. Fans don't start. GPU doesn't move. Drives don't make a sound. I don't know if I'm even turning it on properly / configured the connectors properly.

I've taken out parts one-by-one and tried turning it on. I've stripped it down to just the power supply and motherboard and tried turning it on. I've Googled a bit and have read that people have done some funky things to resolve no post issues like moving a stick of memory from one slot to another and rebooting, so I've tried that as well--moving around the RAM.

I am curious if I am actually even booting the PC. The manual is a bit weird to read to me (images attached) so for all I know I'm not actually even turning on the computer (!). I don't have a Start button on the motherboard, I think. I've also tried using a screwdriver on the two power-oriented connectors like I saw on YouTube to start a motherboard but that didn't do anything as far as I'm aware.

The connectors (for panel) are labeled "POWER LED+" "POWER LED-" "H.D.D LED" "POWER SW" and "RESET PW". I've tried putting them in the apparently correct spots but it doesn't seem to work. I've also tried moving them around a bit to see if that did anything--to no avail.

Here are a couple pages from the manual discussing the connectors:
http://imgur.com/a/TNW7x
http://imgur.com/a/bYBlX

The build:
Motherboard: ASUS PRIME Z270-K LGA1151
CPU: Intel BX80677I57400 7th Gen
GPU: EVGA GeForce GTX 1050 Ti SC GAMING, 4GB GDDR5
Case: Corsair Carbide Series 200R Compact ATX Case
Memory: Corsair Vengeance LPX 8GB (2x4GB) DDR4 DRAM 3000MHz
Power Supply: EVGA 600 B1, 80+ BRONZE 600W
Aftermarket CPU cooler (applied a drop of thermal paste): Cooler Master Hyper 212 EVO
SSD: Samsung 850 EVO 250GB
HD: WD Blue 1TB SATA 6 Gb/s 7200 RPM

Thanks so much for your help!