Hi I've looked all over the forum for the solution but none of it is helping me out. I am building a computer with leftover parts and I have everything connected correctly and reseated everything properly and tested all the hardware on other systems to make sure that they work, and for some reason I can't get any video on the monitor or power to go to the keyboard, surprising the mouse powers on. I am using these hardware below please help troubleshoot
Msi a78m-e35
300w power supply
AMD Athlon X4 750k
8gb corsair vengeance
1tb hard drive western digital
Rosewill CHALLENGER case