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Old 10-21-2006, 06:43 PM
Paul
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Default Re: MotherBoard Fails to boot.



pdcjlw1@gmail.com wrote:
>
> Paul wrote:
> > pdcjlw1@gmail.com wrote:
> > >
> > > I've got an Intel D945GNT motherboard and a Pentium D 2.8 Ghz
> > > processor. I've also got two sticks of DDR2 memory at 533 MHZ. I am
> > > not able to get any video or even any post beeps out of the
> > > motherboard. I've even bought a motherboard diagnositc board to try and
> > > read any post codes, however I don't get any. I do see the cpu fan
> > > twitch when I turn on the power and the 3.3v light blinks, but that's
> > > it. I don't have any drives attached to the motherboard. I've replaced
> > > the motherboard, cpu and memory. I've even tried to boot without memory
> > > just to see if I could get any type of post code.
> > >
> > > I've tired it with the motherboard mounted in the case and out of the
> > > case. I've even tried different cases.
> > >
> > > Anybody got any ideas?

> >
> > The +5 V standby power indicator LED (CR3J1) should remain
> > lit steady. It should not blink. If it blinks or goes off,
> > it means +5VSB is overloaded on the PSU, or the PSU has
> > protected itself by switching off everything. Remove the
> > motherboard from the computer case and assemble a minimum
> > system on your tabletop (with a cardboard covered phone
> > book underneath the motherboard for support). Removing
> > the motherboard from the case, ensures that no standoffs
> > are touching the motherboard, where they are not supposed
> > to.
> >
> > Using CPU+heatsink+fan, motherboard, PSU, computer case
> > speaker plugged to the PANEL header, computer case power
> > switch plugged to the PANEL header, while it all is
> > sitting on a piece of cardboard, you should be able to
> > get whatever error beep pattern an Intel board uses.
> > Your port 80 POST diagnostic card should display
> > codes other than 0x00 or 0xFF hex, if all is well.
> > If the POST card is showing some activity, or you
> > get some beep codes, you can switch off and add
> > more hardware to the system, until you get really bad
> > symptoms again. Add RAM, video card, keyboard+mouse,
> > and finally a boot drive, in that order, and observe
> > the symptoms after each test case.
> >
> > HTH,
> > Paul

>
> I've found the light on the motherboard you were talking about. It does
> stay on. there is a different light on the POST diag board that blinks
> on for a second. I've tried several different power supplies and none
> make any difference. I've tried it with just one stick of ram and
> swithed which ram stick that's in. I've got no drives plugged in and
> the sound and video are on the motherboard. I've even cleard the CMOS
> and tried to reboot then. I still get nothing.
>
> Any other ideas?


At this point, the odds are it is a bad motherboard.
You've tried several power supplies, and all you can
manage is a twitch. I'd try another motherboard.

Paul

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