New Build - No Power

[blawford]

Hi all,

Tonight I built a new PC, all new components... I have built a number of PCs in the past and although they aren't normally smooth sailing to get to the point when you can get into the BIOS (POST beep decoding etc) this time I have got nothing at all...

I plugged in the PSU, no lights on the motherboard (realising as I type this that I didn't actually check the manual to see that there definately were LEDs that should be lighting up, but my last few did, so I'm assuming...)

When I press the power button, there is a barely audible half beep noise, like something is going to come to life (can't tell what component it is exactly), then nothing. The next time I press the power button it doesn't make the same, or any noise, until I unplug everything and short the CMOS Clear jumper. I can then repeat the process (press power, hear noise).

Anyone any ideas? Not much to go on I know but any ideas welcome.

Gigabyte 880 motherboard, Athlon II X3 450, 4GB DDR3, GTX 460, 550W Coolermaster PSU, can be more specific but I don't really see it being relevant...

 

[RJC]

Is the 4 or 8 pin for cpu power connected, often gets missed.
Double check the ram is in the correct slots, I did this with my i7 build.

 

[blawford]

Is the 4 or 8 pin for cpu power connected, often gets missed.
Double check the ram is in the correct slots, I did this with my i7 build.

CPU power is connected, will try moving/reseating the RAM, would have thought I would get power if that was the case though.

Anyone else any ideas?

 

[Tealc]

Could be a dead PSU. Do the fans twitch at all? Remove the PSU from the motherboard, connect a few fans and short the green wire with a black wire on the 24 way connector to check if the PSU is totally dead.

 

[blawford]

Thanks for the advice, disconnected the PSU from the motherboard and reconnected and things came to life, strangely enough there are no LEDs on the motherboard when in standby mode.

Think I have a DOA hard drive though