Hp Elitebook 840 G5 display issue

prudence

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Join Date: Oct 2019

Posts: 9

Country: Zimbabwe
#1

Hp Elitebook 840 G5 display issue

08-14-2025, 01:52 AM

Good day

I have Hp Elitebook 840 g5 motherboard board number COMPUTRO-6050A2945601-mb-A01(A1) The motherboard switches on but it does not display. I have done my diagnosis and find out that CPU core voltage drops from 1V to 0.7V with time but this happens within a minutes upon switching on the motherboard.
Kindly help me to fix this problem
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mon2

Badcaps Legend

Join Date: Dec 2019

Posts: 14263

Country: Canada
#2

08-14-2025, 06:44 AM

What is the LA-**** number or markings on your logic board? General advice is to study the LCD connector voltages and signals.

Can you confirm that the logic board is truly booted? Do you see the LED flicker on a USB mouse?
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ilian359

New Member

Join Date: Dec 2015

Posts: 5

Country: Bulgaria
#3

Yesterday, 01:34 PM

It does not seem to be a screen issue at all. Have you tried with external monitor?
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Motherboard issue - all voltages OK but no display

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I've got a couple of Intel and AMD boards which turns on fine, all voltages at all coils are present, but there is no display.
I guess this like Code 00 issue.
I've tried a couple of good CPU's and working Graphics Card.
PCH has been replaced too. On one Intel board I have even replaced the CPU Socket.
The CPU's don't get hot, but gets a bit warm.
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Hp Elitebook 840 G5 display issue

Hp Elitebook 840 G5 display issue

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