I did but i cant make out much from it. My red usb slot is free . I did cpu . 1 ram out of 4. Cpu fan. 3 pin to a 4 pin. And i think i connected the hdd properly too . I think the problwm is with those very little ones with 2 pins that go on the edge
Download the manual for your motherboard if you don't have one and check that you have the front panel connectors plugged in properly. It's easy to be off a pin on those.