No video with HP Pavilion N5440 1

[cm103]

Hi,

I'm a new poster here with a question. I just got a laptop from work that was going to be scrapped due to them not having enough time to troubleshoot. Its the HP Pavilion N5440 and it starts up but doesn't display anything. The control panel on the front shows its on and I can toggle through the display.

Anyone have any idea where I could start or how to test this problem? I don't have any experience with troubleshooting laptop h/w issues. Any assistance would be greatly appreciated.

TIA,
Chris.

 

[ski]

The MB, CPU, RAM, or video card may be bad.
Does it start in Safe mode?

 

[micker377]

I can toggle through the display"

What do you mean by this? Can you display on another monitor?

 

[cm103]

Ok, let me elaborate a bit...there is no video display whatsoever. I tried displaying to an external but no dice. This model laptop has a LCD display that shows the status (ON/OFF), date, time and battery charge. It charges and I can toggle through them on the lcd.

I tried displaying on an external monitor from the VGA out and also from the video component out to a TV. Both didn't work.

Wouldn't the POST give beep errors if the RAM or Proc was bad?

 

[ski]

Wouldn't the POST give beep errors if the RAM or Proc was bad?"
It may, but I've seen systems that did not beep when either of those components were bad.

 

[micker377]

I had the same symptoms on a Solo 2500. I replaced the CPU board (E-Bay $15.00) to fix it. Looked at the different "parts" pictures on E-Bay to see how to get to the unit.

 

[cm103]

Thanks micker...i'll give that a try. By CPU board do you mean MB? or is it a riser/daughter card for the CPU?

 

[micker377]

The CPU card (didn't know what else to call it), is the CPU mounted on a 2" by 2" daughter card that plugs into the mainboard. I understand on laptops, you don't have a "motherboard". It is referred to as the "mainboard". I guess that this is because the "mainboard" is just the board that everything else plugs into!