cancel
Showing results for 
Search instead for 
Did you mean: 
  • ×
    Information
    HP Solution Center Adobe Flash player error

    Please check this document to find the workaround solution for Print and Scan - HP Solution Center doesn't open

    Information
    Fix Windows 10 Update Issues

    Resolve Windows 10 or update issues on HP computer or printer– Click Here

  • post a message
  • ×
    Information
    HP Solution Center Adobe Flash player error

    Please check this document to find the workaround solution for Print and Scan - HP Solution Center doesn't open

    Information
    Fix Windows 10 Update Issues

    Resolve Windows 10 or update issues on HP computer or printer– Click Here

  • post a message
New member
1 0 0 0
Message 1 of 2
72
Flag Post

Short to ground on CPU voltage plane 14-dq1025cl

HP Recommended
14-dq1025cl
Microsoft Windows 10 (64-bit)

I purchased this HP notebook on Nov 11, 2019. It worked flawlessly for a year. On Dec 7, 2020, while I was working on editing a file, the computer suddenly went dead. No light at the wall wart plug. I unlugged the AC/DC adapter, tried to power up and got the same result, no reaction at all.

 

Since I was out of warranty by a month, I opened up the notebook and did a visual check. Everything looked just fne. I checked connectivity with a multimeter and found that the output stage of one of the CPU VCC regulators showed a short to ground. Suspecting that either the FET or the decoupling cap had given up the ghost, I pulled up a lead on the output inductor and found that the short remained on the CPU side and not on the VR side.

 

So, it is almost certain that there is a short in or under the CPU which is soldered down to the motherboard. I am an Intel retiree and have some experience with Intel CPUs. In 30+ years, I have never seen an Intel CPU develop an internal short to GND with no external indication of thermal distress.  I am unsure about what the failure mechanism  is or where the short is.

It appears that HP has built in protection for overcurrent on the voltage planes so that nothing on the board powers up anymore.

 

I write to ask is anyone else on this forum has seen similar issues. I note that there have been some other reports of similar failures but did not see any follow ups about successful diagnosis or repair.

1 REPLY 1
HP Support Agent
HP Support Agent
27,729 27,714 1,831 2,471
Message 2 of 2
Flag Post
HP Recommended

@ravi_nagaraj

 

I reviewed your post and I understand that there is a short on the board and the computer is not powering on.

 

Don’t worry, I assure you I will try my best to get this sorted.

 

I recommend you contact support and they will assist you with the available service options for your computer.

 

Here is how you can get in touch with support.

 

1)Click on this link – www.hp.com/contacthp/

2)Select the product type.

3)Enter the serial number of your device or select let HP detect your product option.

4)Select the country from the drop-down.

5)You should see the HP phone support number or Chat option listed.

 

Let me know how it goes and you have a great day!

 

P.S: Welcome to the HP Support Community 😊

 

If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!

 

Cheers!

Stay Home – Stay Safe

The_Fossette
I am an HP Employee

Reply
0 Kudos
Warning Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation