Question HP Elitebook 8760w Shutdown

Jan 12, 2021
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Hello, I have a problem that I think this is beyond my capabilities.

I am having an issue with my HP EliteBook 8760w who shuts down randomly (then restarts immediately) when plugged in but never does it when on battery.

After research I found that either disabling the video card (Nvidia Quadro 3000M) in the device manager or uninstalling the video drivers made it back to normal (it never shuts down).

So to be clear because I know this is weird : I can use it normally on battery but I have to uninstall the video drivers or disable the GPU to use it when plugged in (otherwise it shuts down pretty fast).

I tried a lot of things, here's a list, hope its understandable :
  • I did a clean installation of windows and try with 2 different disks.
  • Check the CPU and GPU temperatures
  • Try with or without the battery
  • Tried a new HP genuine AC adapter
  • Tried a new GPU (a new nvidia Quadro 3000M)
  • Install a new motherboard
At this point I literally replace every part that can be faulty. I disconnected everything, except CPU, GPU, RAM and HDD but he still shuts down everytime I enable the graphic card and plugged in.

The only thing I did not replace is the Power Jack Cable : https://www.ebay.fr/itm/AC-DC-Power-Jack-cable-port-for-HP-EliteBook-8760W-8760P-6017B0295901-652545-001/112193393342?hash=item1a1f3f52be:g:-HEAAOSwnbZYHClW

I plan on replacing the thermal paste even if it does not seem to overheat.

If someone can lead me on a path to help me find where this come from I would be really grateful.

Thanks for taking the time to read.
 
Did you install all drivers from the HP support homepage?
if available update the BIOS

Reset the BIOS by jumper clrCMOS or JBAT or similar (eventually you will have to set the boot priority correctly after that)

check windows integrity
open the command prompt as administrator and type DISM /Online /Cleanup-Image /RestoreHealth
https://www.lifewire.com/how-to-open-an-elevated-command-prompt-2618088
https://answers.microsoft.com/en-us/windows/forum/windows_10-update/system-file-check-sfc-scan-and-repair-system-files/bc609315-da1f-4775-812c-695b60477a93


clean boot
https://support.microsoft.com/en-us/help/929135/how-to-perform-a-clean-boot-in-windows


check the memory by running memtest.org usb autoinstaller (bootable USB flash drive)


check the hard drive for errors with its manufacturer´s tool
 
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