Desktop doesn't turn on/possible psu problem

Good evening to all,
the problem appeared when i push the on/off button and there was no response from anything in the case and after i pushed the button within seconds the Circuit breaker(i don't know if it is the right word) of the room turned off.The desktop was connected to a power strip and the power strip is not the problem because i tried it and it works alone and i also tried connecting the desktop directly to a socket(at two different sockets at different rooms) and there was no response.The PSU is a Corsair GS 600 and the rest of the system consists of:
cpu i7 2600k (overclocked at 4,4 Ghz,passed a 28 hours prime95 without any problem so i decided i could leave it there)
motherboard Asrock z77 Fatality Professional-M
GPU amd hd6870
an cd/dvd drive and two HDDs.
I have no backup psu to try.
Is it a sign that the psu is dead or could it be something else?
Thank you in advance

Discussion is locked
Reply to: Desktop doesn't turn on/possible psu problem
PLEASE NOTE: Do not post advertisements, offensive materials, profanity, or personal attacks. Please remember to be considerate of other members. If you are new to the CNET Forums, please read our CNET Forums FAQ. All submitted content is subject to our Terms of Use.
Reporting: Desktop doesn't turn on/possible psu problem
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
- Collapse -
With no backup PSU shows it has a 3 year warranty so to troubleshoot this I remove the PSU from the PC then on the bench pull out my Volt meter and put some old HDD on the PSU for a small load. Now I use the GREEN WIRE PSU TEST (noted on google) and measure each leg of the PSU to see if it has output. If that works I'm stripping down the PC to about 4 parts to see if it powers up.
- Collapse -

thank you for your quick answer. i tested it with the test you suggested and it doesn't do anything. i put the paper clip in position and i left a case fan connected with the psu and tried turning it on but with nothing happening.

CNET Forums