Problem or normal behavior? URGENT!

[Soundigy]

Hello,


I just bought all new components, among motherboard 'GA-990FXA-UD3 (rev. 4.0)' and I have strange 'issue' which I'll try to describe:


1. When I power up PC, it starts, than goes off for a 2-3 seconds, than boot normally, so basicly it goes on-off-on.

2. When I press hardware 'reset' key on my case, PC shuts down, then boots normally after 2-3 seconds.

3. When I want to reboot my PC from Windows and select restart, PC shuts down, then boots after 2-3 seconds.

4. When I change something in BIOS, than 'save and exit', PC shuts down, than boots after 2-3sec.



Notice:
I've tried BIOS F1 and F2.
Everything is at default, optimized settings.
Nothing overclocked.


Is this normal behavior or not?


Other components are:

cpu: AMD FX8350
gpu: ASUS R9 280X
psu: Superflower 650 80+ Gold
ram: Kingston 10th years anniversary 8gb


Thanks in advance!

 

[tiny voices]

This all sounds normal.

 

[Half Life]

except for 1 I guess

 

[Soundigy]

Sorry, it's normal when I press hardware reset, or in Windows restart, that pc shut down completely, than to boot up after 2 seconds?

But it's not normal when I power on pc, to boot for second than shut down for a 2 seconds than to power up and boot it self normally?