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Hp pavillion- no monitor signal


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9 replies to this topic

#1 AFTERLIFE2012

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Posted 12 December 2010 - 05:40 AM

Okay i have a hp pavillion a6400f PC, one day i was on the computer and i accidently knocked out the pc power adapter from the wall, when i turned it back on everything appears to be working but i get no signal from the monitor.

I dont get any beeping sounds when i turn it on, and already tried removing ram, motherboard battery, holding power switch, and switching the red (i guess reset) button but still nothing.

The monitor works fine with everything else so its not the monitor, i even tried connecting my pc to my tv but still get no signal input. Im completely stumped have no idea what it is. The pc is running on vista ultimate, had the pc for like 2 years. The pc dosent have a video card, i think its running onboard video adapter. Please help

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#2 gazjd

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Posted 12 December 2010 - 06:25 AM

i had the same thing with my pc but it was with a graphics card, i wouldnt be sure about how to go about onboard graphics except for the obvious, check all cables etc, do you know anyone with a spare graphics card you could use instead of the onboard g?
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#3 AFTERLIFE2012

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Posted 12 December 2010 - 03:41 PM

No i dont, guess i gotta buy one

#4 gazjd

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Posted 13 December 2010 - 04:10 AM

i would suggest you seek advice from someone with more experiance than me first lol, but you can pick them up cheap as chips ;)
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#5 dc3

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Posted 13 December 2010 - 11:06 AM

What power adapter are you referring to?

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#6 AFTERLIFE2012

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Posted 13 December 2010 - 11:24 AM

The plug that powers up the tower

#7 dc3

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Posted 13 December 2010 - 12:01 PM

If you are referring to the cord that plugs into the back of the PSU, then that is not an adapter.

If you don't have a working monitor, how do you know that everything else is working?

Are the fans on the CPU and PSU spinning?

Do any LEDs light up when the computer starts?

Can you open your optical drive?

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#8 AFTERLIFE2012

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Posted 14 December 2010 - 07:57 AM

Fans are working, disk drive working, led lights come on like normal just no video signal

#9 dc3

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Posted 14 December 2010 - 08:36 AM

Is the hdd LED indicating activity?

Did you make a recovery disk for this computer?

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#10 AFTERLIFE2012

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Posted 14 December 2010 - 02:14 PM

I dont have a recovery disk all lights are on, no orange lights but after awhile (typically the amount of time to boot up) the computer goes into sleep mode (orange light). Not sure if the hdd has any activity.




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