HP Pavilion DV7 Won't turn on

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okrobie

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Mar 2, 2016
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Hi all, I have read and performed all of the actions recommended in the stickie. (including re-seating the memory which were loose) When I push the power on button it just blinks and dies. Occasionally, if I hold the power button down, it will start to come on. that is to say that I can hear the hard drives spinning up and the cooling fan starts to blow, but after a few seconds it dies. I am sure that the power supply is good. When I got this machine, it came with a 65W PSU, but now I have a 135W unit on it. (the unloaded output is 19.5VDC)

Replacing the motherboard is not financially an option at this point. I would like to try any other options. Anybody got ideas? Thanks, Jim
 
Hi,

Please do try these troubleshooting steps that may help.
- Start by removing the battery and boot it up with just the AC adapter connected and see if it will boot up normally.
- Next is to test the AC adapter if it's supplying enough voltage or try a different AC adapter that has the same voltage.
- If it doesn't work proceed with reseating the RAM's, remove them all for couple of seconds then put them back in making sure everything is seated properly.
- If you'll see lights on the laptop and you can hear the fans spinning, connect an external monitor and see if you'll get any display from it because if you do that means the problem is the built in display.
- You may need to check the ribbon that connects the LCD to the motherboard.
- If all these will not work the problem would be the motherboard.

Hopefully this will help. :)
 

okrobie

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Mar 2, 2016
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Since I haven't heard from anyone on this issue, I guess I should be looking for a replacement MB. It is a 615307-001 for a HP DV7t-4000. Can anyone recommend a board repair center or a good source of used boards? Thanks
 
Dec 10, 2021
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Hi all, I have read and performed all of the actions recommended in the stickie. (including re-seating the memory which were loose) When I push the power on button it just blinks and dies. Occasionally, if I hold the power button down, it will start to come on. that is to say that I can hear the hard drives spinning up and the cooling fan starts to blow, but after a few seconds it dies. I am sure that the power supply is good. When I got this machine, it came with a 65W PSU, but now I have a 135W unit on it. (the unloaded output is 19.5VDC)

Replacing the motherboard is not financially an option at this point. I would like to try any other options. Anybody got ideas? Thanks, Jim
Hi Jim! This is a late reply, I know... Did you ever solve the problem? I Have a dv7 as well, with the same issue. I press the powerbutton, it blinks, and nothing happens. The power supply works fine, both external and the input.

Kindly,
Pakolito
 
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