Flickering HP Compaq 8200 Elite UST

[manamaga2512]

Hi all, we have around 3 or 4 machines doing this. Hopefully the link I supplied will work. We have just done a whole IT refresh with these machines. We've tried different monitors, VGA cables, display cables, driver updates, windows updates, BIOS updates. We can't think of anything else to try. I've not noticed any particular pattern as to when or what causes this and the only way is to force shutdown and startup again. At first I thought it was because the machines had been left on all night but, one machine started doing this as a student was just browsing the web. Any guesses?

 

https://drive.google.com/a/samuellister.co.uk/file/d/0BziL0k7lYpnOdFBVcWR4X3dCZTQ/view?usp=sharing

 

Ta very much.

[Dos_Box]

Does the problem occur on initial boot-up and when you restart does it come back again at all?

[manamaga2512]

After forcing shutdown it doesn't happen again on reboot, but does happen again later. It could be days later or it could be hours later. Very random and only on 3 or 4 machines (at present)

[Dos_Box]

After forcing shutdown it doesn't happen again on reboot, but does happen again later. It could be days later or it could be hours later. Very random and only on 3 or 4 machines (at present)

When it happens again have the machines been rebooted, also, does this happen every time on the initial boot?

[Dos_Box]

Interesting, this seems to suggest it could be the LAN cable - https://support.hp.com/gb-en/document/c03648552

[manamaga2512]

Interesting, this seems to suggest it could be the LAN cable - https://support.hp.com/gb-en/document/c03648552

 

That does suggest VGA port, but we have removed that from the equation by using the display ports instead, and it still happens :-/

[Dos_Box]

That does suggest VGA port, but we have removed that from the equation by using the display ports instead, and it still happens :-/

 

Just to be sure though, have you tried booting with the LAN cable disconnected and away from the computer, or plugging in a known working machine into the same place to see if you get the same symptoms?

[manamaga2512]

It doesn't happen when machines boot up, at least it's not happened so far. Normally when they have been on for a while. We can try booting without the LAN cable in but we won't see anything different.

[Dos_Box]

I wonder if it's bad caps (capacitors) have you checked them for bulging?

[Tesla]

8200s? @ICTDirect_Dave is this an issue you've seen before on them?

[ICTDirect_Dave]

8200s? @ICTDirect_Dave is this an issue you've seen before on them?

 

It's a little more extreme than what I've seen before.

 

But you can get a similar effect when the onboard graphics are on the way out, and occasionally when there's a bad stick of ram in a machine.

 

I've passed the video to my chief fettler with a request for feedback. I'll let you know what he says

[Passat1983ICTech]

hi there

 

have you update the drive on the pc have you tried updating the bios as well

 

to me it look like it a vga port has fail I had one on a laptop and did a lot of google and it was the mother board try this first then you can say it is the mother board

[ollyyllo]

Is this from the onboard graphics?

What chip is it, or what graphics card model?

 

Looks like some models of these Compaq come with Intel HD Graphics 3000

 

I have some laptops with that chip that do a very similar thing.

 

If you can find the setting 'Display Refresh Rate Switching' and uncheck it, that might work?

Edited October 11, 2017 by ollyyllo

[Joanne]

I have had a similar issue on a laptop. It's being sent back under warranty. I had tried everything... here is mine....

 

https://www.dropbox.com/s/o9ti8r2xirpbl3n/VID_20171010_120235.mp4?dl=0

 

Edited October 11, 2017 by Joanne

[Passat1983ICTech]

try using the other display port on the back and see what that dose

[Dos_Box]

I have had a similar issue on a laptop. It's being sent back under warranty. I had tried everything... here is mine....

 

https://www.dropbox.com/s/o9ti8r2xirpbl3n/VID_20171010_120235.mp4?dl=0

 

[ATTACH=CONFIG]45742[/ATTACH]

 

That would make cool wallpaper for my living room!

[Joanne]

I enjoyed watching the edge change colours....

[eddyc]

Hi all, we have around 3 or 4 machines doing this. Hopefully the link I supplied will work. We have just done a whole IT refresh with these machines. We've tried different monitors, VGA cables, display cables, driver updates, windows updates, BIOS updates. We can't think of anything else to try. I've not noticed any particular pattern as to when or what causes this and the only way is to force shutdown and startup again. At first I thought it was because the machines had been left on all night but, one machine started doing this as a student was just browsing the web. Any guesses?

 

https://drive.google.com/a/samuellister.co.uk/file/d/0BziL0k7lYpnOdFBVcWR4X3dCZTQ/view?usp=sharing

 

Ta very much.

 

We’ve had this on a few once they got to 3-4 years old. It was a while ago now but I seem to recall it was ram related. I think swapping between one good and one bad machine the fault would move