Your system does not use registered RAM...it's not a server. Pull everything off that mobo except for 1 stick of ram. Keep the keyboard and mouse (if PS2) plugged in. Watch the CPU fan and the led lights on the keyboard. If you get one beep and the cpu fan is spining and the LED lights on the keyboard flash your at post.
BTW......make sure the 4 pin 12 volt rail is plugged into your mobo or the CPU will not power on!!
If it will POST, add the video card and see if you can enter the BIOS. We'll go from there.
EDIT: Non-eec non Buffered 184 pin Ram is DDR!