We help IT Professionals succeed at work.
Get Started

Very strange blank screen behaviour at boot time and beyond.with AMD A8 CPU

Alan Bateman
Alan Bateman asked
on
185 Views
Last Modified: 2018-02-26
I have a desktop computer running an AMD A8-5600K CPU and it is frequently showing a black blank screen at boot up. I can boot the PC from power on but I do not see any BIOS / UEFI messages. (I can't enter BIOS or UEFI screens either.) Occasionally the first thing to come up on the screen is the windows load screen, but 9 times out of time NOTHING EVER comes up on the screen!  I know the PC is starting up and loading windows because once it's up I can remote into it using Teamviewer (and then I discover it seems to be locked into a screen resolution of 640 x 480 !!).
I have tried new cables, VGA, and DVI to two different screens - none of them work. (But I know the cables and screens work with other PCs.)  I updated the Windows 10 drivers for the Radeon HD APU (which made no difference and separately I tried it with an nVidia graphics card but none of these actions made any difference.  I don't really think this is a Windows problem because even with hard disks disconnected and after removing and replacing the motherboard CMOS battery I still get no BIOS/ UEFI screens or messages. On the one time in 10 that it did work it worked perfectly at usual 1920 x 1080 resolution. I was able to restart it from there and it came back OK but after a shutdown it was back to blank screen . Exasperated !
Comment
Watch Question
System Admin
CERTIFIED EXPERT
Commented:
This problem has been solved!
Unlock 2 Answers and 3 Comments.
See Answers
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE