PC turns on then off (newly build)

[xfallx]

Hello its my first post!


Well anyways I just build my first ever pc using tutorials like (Austin Evans) well I build it turned it on, and all the fans would work then right after stop! Sometimes I get one bleep from the psu, What should I do as im really annoyed as I spent hours do this!

thanks

 

[cliffordcooley]

Since you say the machine tries to boot, I'll assume the front panel connectors are correctly connected.

• Make sure all cards, memory, and cables are properly seated. Including the 4pin/8pin motherboard power connector.
• Try a different PSU. I had a PSU go out that acted this way, after an instant shutdown. Yours could be a DOA that acts the same way.
• Try a single RAM module at a time. Switch modules if the first one doesn't help.
• Try with all unnecessary components disconnected. Any damaged component can keep the PSU from receiving power good status.

 

[xfallx]

Thanks cliff, no luck, What should I do? same thing happens the fans light up a fraction of second and one bleep!
thanks

 

[xfallx]

Actually it's kinda like a tick tock, anyone else?