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The MOBO... how can I be SURE it's really the problem?

Tags: motherboard, hardware, bios, monitor, boot, cmos, psu, power supply, asus
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The MOBO... how can I be SURE it's really the problem?
Not certain if it's the mobo, psu, or video card. I'm working on a friend's factory HP a6303w with an Asus IPIBL-LB mobo (with no led indicator) and a 300 watt psu. Sometimes within 10 seconds of start up, it will shut itself down momentarily then power back up and stay on. I get NO beeps, even with EVERYTHING disconnected. The fans come on, and all devices have power, but nothing responds. The monitor will say no signal and go to sleep and won't wake up. the keyboard may or may not flash but never powers on up. The dvd drive will open and close but never sounds like it's spinning/reading.

I have swapped memory, cleared cmos, replaced the battery, and reset the psu. I tried contacting both HP and ASUS, but frankly, they were useless.
Posted: 08/20/2009 @ 11:10 PM (PDT)
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twilazoned
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Location: Wynne, Arkansas
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The MOBO... how can I be SURE it's really the problem?twilazoned | 08/20/2009 @ 11:10 PM (PDT)
AcceptedNot much you can do here otherOH Smeg | 08/20/2009 @ 11:39 PM (PDT)
3 strikes, and I'm still out...twilazoned | 08/21/2009 @ 12:21 AM (PDT)
I was going to say, clean the processor, but you beat me to it..Peconet Tietokoneet | 08/21/2009 @ 03:21 AM (PDT)
Overclocked??twilazoned | 08/21/2009 @ 04:03 PM (PDT)
Depending on the M'Board hereOH Smeg | 08/21/2009 @ 05:54 PM (PDT)
AcceptedA thought....---TK--- | 08/21/2009 @ 12:15 PM (PDT)
Popped caps?twilazoned | 08/21/2009 @ 04:06 PM (PDT)
AcceptedMOBO problemsdpalsen | 08/21/2009 @ 12:23 PM (PDT)
No bells or whistles...twilazoned | 08/21/2009 @ 04:22 PM (PDT)
New motherboardIC-IT | 08/22/2009 @ 08:37 AM (PDT)
AlsoJacky Howe | 08/21/2009 @ 01:28 AM (PDT)
AcceptedIf the Capacitors are OKJacky Howe | 08/21/2009 @ 04:31 PM (PDT)
Thanks to you all!twilazoned | 08/23/2009 @ 08:50 AM (PDT)
Your welcomeJacky Howe | 08/23/2009 @ 01:22 PM (PDT)
Your Welcome. EOMOH Smeg | 08/23/2009 @ 04:09 PM (PDT)

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