fans turn on then off

Hello,

I built the PC myself, yet it does not boot. When I press the Power
On switch, the fans turn on for about a second, then they turn off
automatically. I checked the standoffs. I remove the motherboard
from the case. I disconnected all drives, and the video card. I
removed the CPU then put it back. Yet the behavior is still the
same. What could it be?

Thanks,
T.I

PSU "Power Good" signal ? - unhappy PSU ? ...try swapping it out.

regards, Richard


"titani" <titani@airmail.net> wrote in message
news:025eb89e-48b6-403d-871b-600908cdf1df@j7g2000prm.googlegroups.com...
> Hello,
>
> I built the PC myself, yet it does not boot. When I press the Power
> On switch, the fans turn on for about a second, then they turn off
> automatically. I checked the standoffs. I remove the motherboard
> from the case. I disconnected all drives, and the video card. I
> removed the CPU then put it back. Yet the behavior is still the
> same. What could it be?
>
> Thanks,
> T.I

I've seen some Intel motherboards do this normally, just once after being
plugged in. They start properly every time after that.


"titani" <titani@airmail.net> wrote in message
news:025eb89e-48b6-403d-871b-600908cdf1df@j7g2000prm.googlegroups.com...
> Hello,
>
> I built the PC myself, yet it does not boot. When I press the Power
> On switch, the fans turn on for about a second, then they turn off
> automatically. I checked the standoffs. I remove the motherboard
> from the case. I disconnected all drives, and the video card. I
> removed the CPU then put it back. Yet the behavior is still the
> same. What could it be?
>
> Thanks,
> T.I

"titani" <titani@airmail.net> wrote in message
news:025eb89e-48b6-403d-871b-600908cdf1df@j7g2000prm.googlegroups.com...
> Hello,
>
> I built the PC myself, yet it does not boot. When I press the Power
> On switch, the fans turn on for about a second, then they turn off
> automatically. I checked the standoffs. I remove the motherboard
> from the case. I disconnected all drives, and the video card. I
> removed the CPU then put it back. Yet the behavior is still the
> same. What could it be?
>
> Thanks,
> T.I


Assuming that the power cable to the board is fully pressed home.

Also look for a four pin connector on the motherboard close to the
processor. There should be as four pin connector coming from the power
supply (yellow and black wire colors) which fits onto the motherboard.

There are two other possibilities.

The motherboard may not be a good one or was damaged while being installed
into the case..

--
Mike Hall - MVP
How to construct a good post..
http://dts-l.com/goodpost.htm
How to use the Microsoft Product Support Newsgroups..
http://support.microsoft.com/default...help&style=toc
Mike's Window - My Blog..
http://msmvps.com/blogs/mikehall/default.aspx

I should have mentioned that I've had several "quality" PSU's that did this,
(short spin-up then system died), including a Seasonic SII 380w, which is
why I suggested swapping out the PSU.

regards, Richard


"RJK" <nospam@hotmail.com> wrote in message
news:%23W5nAMk7IHA.4536@TK2MSFTNGP04.phx.gbl...
> PSU "Power Good" signal ? - unhappy PSU ? ...try swapping it out.
>
> regards, Richard
>
>
> "titani" <titani@airmail.net> wrote in message
> news:025eb89e-48b6-403d-871b-600908cdf1df@j7g2000prm.googlegroups.com...
>> Hello,
>>
>> I built the PC myself, yet it does not boot. When I press the Power
>> On switch, the fans turn on for about a second, then they turn off
>> automatically. I checked the standoffs. I remove the motherboard
>> from the case. I disconnected all drives, and the video card. I
>> removed the CPU then put it back. Yet the behavior is still the
>> same. What could it be?
>>
>> Thanks,
>> T.I
>
>