I have put in systems for years. I had a problem with my motherboard, but I thought it was a power issue.. got a new case, new power supply, new mobo, new cpu, new memory.. and the computer powers on, but will not display anything, won't let me get to the BIOS with 3 different video cards, and weather I use the old memory or new memory.. what is going on.. I don't have a PC speaker in this box, so I don't know how to get it to the BIOS to even see what's wrong.
AMD FX9120 CPU - I know it works, worked in my friends mobo
ASUS M5A97 Mobo
(old mem) Corsair DDR3 1600 Mhz 4 GB (2 sticks of 2 GB)
new mem Kingston Hyper X DDR3 2400Mhz 8 GB (2 sticks of 4 GB)
a RAIDMAX RX-1000 Watt PSU
update: going through the steps of that link.. going to plug everything in before slipping it into the case.. then just plug in the one hard drive (I have 4 and a Blu Ray).. a video card that doesn't require extra power plug.. and see what happens.. then try the breadboarding...