HP desktop beeping, not displaying.

Model: Pavilion m7790y
OS: Windows 7(32 bit)

Symptoms: The computer Beeps and Monitor displays, "no Signal" during boot up.  The fans and hard drives do turn on.  

HP support indicates that this is probably the result of  a loose component or internal cable connection but a physical check did not show any problems.  Trying a different VGA cable didn't work, nor did using the DVI output to connect to the monitor.
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☠ MASQ ☠Commented:
Check the number of beeps and pattern that will give you the information about where the error is being detected.  It won't be a peripheral cable only something directly connected to the system board.  The monitor isn't working because of the PC error.


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Try replacing your video card.
>>  a physical check did not show any problems  <<  did you actuall remove -  reinsert the video cable? if not try that

also - do you have a screen if you go to bios (del or F2 key)
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thuis may also help
 remove battery and AC adaptor, hold power button for 20 sec, connect AC and reboot --> any display ? if NO -->
- disconnect all disk and cd drives, battery , and other cards and peripherals, leave only 1 ram stick
- boot -->any display ?
All so be sure to hook it up to a different monitor to see if it will work.

I have see a bad cable be the cause of this kind of problem .

If you have on board video simply take out your video card and plug in your monitor to the on board video and see if it will display that way.
eljohn101Author Commented:
It actually turned out to be the memory modules ... reseating them cleared up the problem.  The link htat led to the BIOS beep codes led directly to this solution.

Thanks to all for their inputs.
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