Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > Troubleshooting Laptops, Tablets, and Mobile Devices
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 11-03-2021, 04:41 AM   #1
estabilito
Member
 
Join Date: Aug 2020
City & State: warsaw
My Country: poland
I'm a: Knowledge Seeker
Posts: 34
Default Elitebook 840 g2 turning on no display

I have 6050a2637901-mb-a02 with all present voltages except cpu voltage.
Fan on full speed after startup, no display ofc. This is orginal bios, any ideas?
already tried lot of bios from this forum, even clear bios from hp - same result.
Cpu converter replaced, same result.
Resistance on CPU coil around 60-75 ohms i5-5200u.
Other resistances on coils looks ok.
ec reprogrammed and replaced ec winbond - same result.
Attached Files
File Type: rar orgbrako.rar (6.24 MB, 16 views)
estabilito is offline   Reply With Quote
Old 11-19-2021, 03:22 PM   #2
ACS-Repair
Senior Member
 
Join Date: Feb 2021
City & State: Pickering Ontario
My Country: Canada
Line Voltage: 110
I'm a: Hobbyist Tech
Posts: 111
Default Re: Elitebook 840 g2 turning on no display

Sometimes this can be solved by simply removing the CMOS battery (if it has one) for a couple of minutes, then putting it back in. Have you tried that?
ACS-Repair is offline   Reply With Quote
Old 11-19-2021, 07:05 PM   #3
mayss
Member
 
mayss's Avatar
 
Join Date: Nov 2016
City & State: Łódź
My Country: Polska
Line Voltage: 230VAC 50Hz
I'm a: Professional Tech
Posts: 29
Default Re: Elitebook 840 g2 turning on no display

Program the bios once again with your bios cleaned which I turned on.
Attached Files
File Type: rar orgbrako_clean_me.rar (5.97 MB, 41 views)
mayss is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums © 2003 - 2022
Powered by vBulletin ®
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 06:36 PM.
Did you find this forum helpful?