[SOLVED] I don't know how to open case from back

[yourtypicalbuilder]

Hey. This is my pc case (https://www.newegg.com/black-metall...&ranSiteID=8BacdVP0GFs-QK3tSN0ffPV..Sp8SBf5.Q). A box with a bag of screws and standoffs comes in a box which is located in the back where the hdd is supposed to be. I don't know how to open that place up to even put in the psu and hdd. There is a opening from the back but its not enough to actually put in and assemble the hdd and psu. Someone pleas help

 

[13thmonkey]

img 7 on the link you posted shows you, you come at it from behind the mobo.