New build won't turn on with HDD or SDD plugged in

koopatroopatm

Honorable
Dec 5, 2013
43
0
10,530
Just like the title says, my new build will start just fine if I do not have any drives plugged in (by start I mean power up as the build isn't 100% done), but if I plug in either my ssd or hdd the computer starts for about 1 second and instantly shuts off, even if no data cables are connected. I just pulled both drives off of my old build and they were working fine 30 minutes ago. Not sure if this matters, but I have not installed any ram because my ddr4 ram hasn't reached me yet. Any advice is greatly appreciated as I cannot figure out what to do. Specs: Asus Hero VIII, MSI 980Ti, i7 6700k, Thermaltake 750W gold psu.