PC won't boot

[drwho1]

my PC freeze in Windows 7 64 bit, so I pressed [RESET] button but the computer stopped working. checked already the main SSD, reset video card, RAM, checked all other connections. the only thing that I can't check is the power supply. 🙁

computer stays ON for a few minutes without booting. then it shuts off. no sounds, nothing.

 

[shortstuff_mt]

What are the complete system specs? I'm particularly curious about the model number of your PSU.

 

[drwho1]

pc power and cooling 750 watts
motherboard p55 le evga
video card nvidia 560 evga
12 gb ram
main ssd 850 [512 gb]

 

[drwho1]

lets try this again:
every time that I try to turn on the PC, the debug led on motherboard stops at "2A Initialize devices primary"
then shuts down, no beeps, nothing.

removed ram, same thing, put back the ram, removed ssd, same thing.
I was expecting a long beep when I removed the ram (signaling no ram on system, but nothing happened.

 

[drwho1]

UPDATE: unplugged everything, basically rebuilt my pc and is booting normal.
I just have no clue what caused this issue in the first place.