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Computer wont stay on - First Boot


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#1
Unclefunnyman

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HELP.

I have my PSU hooked to the motherboard (in the case) and my RAM and Graphics card installed. I have my PWR lead from the case and the speaker lead (no noise yet) hooked up as well.

When I turn on the PSU, the tiny LEDs on the motherboard light up. Then, when I press the PWR button on my case, all three fans (PSU,Case,CPU) spin momentarily, then stop.

Any suggestions??

This is my first build.
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#2
dsenette

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could you list the full specs?
is all that's hooked up to the board, the psu, cpu , ram and graphix?
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#3
Unclefunnyman

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Abit KN8 SLI
Athlon 3200+
XFX 6800GS PCIe
Ultra Xfinity 500W PSU
Ultra 2525 Mid tower

I also hooked up mouse, keyboard, and monitor when I tried first boot.
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#4
dsenette

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alright...weeelll...let's start from the place that requires starting...the beginning...

take everything out of the case...and lay your mobo on a piece of cardboard (i always use the box that the mobo came in)...now..(if you assumed when i said everything...that i didn't mean the PSU...take that out too) now hook up the psu in the proper fashion making sure that all connections are solid...make sure your heatsing and processor are seated correctly and that you take all of the ram off of the mobo as well...so basically..now all you should have is a psu hooked to a mobo with a processor on it and the system speaker (if it's not built into the board)...and nothing else connected to the MOBO (no ram no graphix no nothing)....now if the wires from the front of the case are long enough..hook up the switches and all of that stuff...now try to power on the board.....what happens?
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#5
Unclefunnyman

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I'm at work right now, but I should have some time this evening to do this.
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#6
dsenette

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http://www.tigerdire...3337&CatId=1079 <-- is this your PSU?


http://www.abit-usa....ies=1&model=306 <--- and mobo?
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#7
Unclefunnyman

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Yes.

Those are the PSU and MOBO I have.

I did what you suggested, but I still have the same result.

Momentary spinning of the three fans...then they all stop.

Just a thought:

The case fan does NOT plug into the Mobo case fan power lead, instead, it just hooks directly to the PSU.

Could the Mobo be shutting down because it thinks the case fan isn't turning??
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#8
dsenette

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yup....most mobo's DO NOT like not detecting a fan...try getting another fan...even if you just pull one out of another machine for a little bit and see if that's the difference
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#9
Unclefunnyman

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I'll give that a try.

Thanks so much for your advise.

Have a great weekend!!
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#10
Unclefunnyman

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Well, I hooked up another fan to the SYS FAN power lead.

Now I get 4 fans that turn for a moment, then stop.

Question:

Does a RED led on a Mobo indicate a problem?

I have a GREEN one near the graphics card slots that shows NORMAL (vs SLI)
But I also see a RED one near the leads for all the case items (PWR,HDLED,SPKR etc.)
It briefly lights up a GREEN one next to it when the case PWR button is depressed, before going back to the RED one when the fans stop.

FYI

I still have yet to ever hear the speaker, but maybe that's because the system won't stay on long enough to activate it??

Help!
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