Question about HP Pavilion a400n (DQ173A#ABA) PC Desktop

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"No Signal" on monitor after boot

I had to replace the power supply after a power surge. Now computer will power up, but right after the "Windows XP" screen displays, the monitor goes black and shows "no signal". The computer is still booting, because I can hear the Windows tune. Tried another monitor with the same results. Is my graphics card bad?

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  • goose93 Aug 24, 2008

    Thanks! I tried moving the graphics card to another slot, and it worked for a few minutes but the resolution was wrong. When I was changing the resolution settings, the monitor went blank and said " no signal" again.



    I'll try a new card next. Thank you!

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Hi try to use different slot on your motherboard see if that helps if not try different video card...if that didn't help it might be your motherboard that went bad

Posted on Aug 24, 2008

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Posted on Jan 02, 2017

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If you need any more help then please do not hesitate to contact us:-

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