One of my friends got a pre built and I offered to upgrade his CPU and GPU. His current specs were i5 4440 and a gt 730 with 12gb of ram. I swapped the i5 to an i7 4790 and the gpu for a GTX 750ti. Everything booted, tested it out 5 times. I asked if he wanted more ram and he said sure so we swapped his 12gb (4x2 + 2x2) to 16gb (4x4).
This is what made it not boot. It first went to the Dell logo and the loading bar was progressing and then it randomly shut off, I was touching the cooler at the time not sure if that caused it or coincidence. I was also touching the cooler in the 5 tests mentioned before. Now the computer does not boot. I press the switch and the fans spin and then turn off.
I did the Dell power test with the switch in the back of the psu, and all components power on. I checked the voltage of the CMOS and it's ~ 3 V. I checked for any bent pins and they all look good to me. I removed the CMOS and theoritcally did a bios reset. Not sure what else to do, is the motherboard bricked? I tried various ram configuration (with old ram that worked) and no good. I tried no ram installed and still same behavior happens. I have attached a video of what happens below.