Help with screen display issues

[Markh510]

I am coming on here for a bit of help diagnosing what is wrong with my pc and if replacement parts are needed, exactly what parts need replacing.

Upon start up the screens will usually display no signal. Occasionally I get a normal start up but soon get display issues and need to turn off again. I suspected that it may have been my graphics card but the normal vga connection doesn’t work either.

I have also cleaned it all out of dust which I also saw could have been an issue but hasn’t fixed the problem.

I will attempt to take pictures to show picture problems but they are only occassional and am having to go through my phone until I can fix it

If anyone thinks they know the issue or a fix then please let me know

Thanks Mark

[Rustys]

Post as much as the system specs as possible that you know.

Is the video a card or built on to the mother board?
If a card remove and attach to the on board and test.

Is the monitor connected to the proper port?

Try reseating all of the hardware (NOT CPU or heat sink for).

What changes and what were you doing prior to this happening?

Have you tried a different cable/Monitor?

[Markh510]

All I can be certain of so far…
Processor: Intel(R) Core i5-3570k CPU 3.40GHz
RAM: 16GB
Operating System: Windows 10
Graphics Card: AMD Radeon HD 7700

I will try to find the motherboard etc but as it was a bundle I will have to look for the specific components.

Thanks for the help and I’ll try reseating everything and let you know what happens. The only change that I have made since this problem started was switching a monitor but it’s just a cheap TV attached by HDMI so didn’t think that it would be an issue.

I haven’t tried a different monitor as I didn’t think it would have caused the problems it has, FYI I use 2 monitors, one has been the same for a few years and it is also showing no signal.

[jmarket]

Try a different monitor to rule out a faulty monitor. Usually no signal indicates a graphics card issue

[Markh510]

Could the monitor still be the issue if the problem is intermittent? For example the pc is work in perfectly fine at the moment but as with last sessions it could suddenly cut out at any point.
If one monitor was faulty would the graphics card not just effectively treat it as if you only had one? Btw they are both connected to the same card.

[phillpower2]

Can you post the brand and model name or number details for your PSU.
Your CPU has integrated video capabilities so there is a good chance that your MB does as well, physically remove your add on video card, hook the display up to one of the MBs video ports then do the following for us;

Please take expanded screenshots and only use the method below to attach them.

Download Speedfan from here and install it. Once it’s installed, run the program and post here the information it shows. The information I want you to post is the stuff that is circled in the example picture I have attached.

If you are running on a vista machine, please go to where you installed the program and run the program as administrator.

http://artellos.geekstogo.com/speedfan.png

(this is a screenshot from a vista machine)

Download then run HWMonitor and post a screenshot so that we have a comparison to the Speedfan results, details from here

To capture and post a screenshot;

Click on the ALT key + PRT SCR key..its on the top row..right hand side..now click on start…all programs…accessories…paint…left click in the white area …press CTRL + V…click on file…click on save…save it to your desktop…name it something related to the screen your capturing… BE SURE TO SAVE IT AS A .JPG …otherwise it may be to big to upload… Click on the Upload a File tab then after typing in any response you have… click on reply like you normally would.

Screenshot instructions are provided to assist those that may read this topic but are not yet aware of the “how to”.

NB: Please excuse the edit, post the wrong canned :whistle:

[Markh510]

[ATTACH]1687[/ATTACH] [ATTACH]1688[/ATTACH] [ATTACH]1689[/ATTACH]

Sorry for the size and in the HWMonitors case a little bit of duplication…
I’ll try taking out the card and see if that makes any difference

[Markh510]

Just in case there offer any clues… these are some of the screens I get once it actually does display something… happen randomly and with no warning

[phillpower2]

No worries, we can see the info that we need (y)

Can you post the brand and model name or number details for your PSU.

The +3.3 and +12V rails on the PSU are high for a computer that is not under any load, both can either decrease or increase when the computer is under a good load such as gaming etc, this is why knowing the PSU information is important.

Tolerance table below shows max and min safe outputs for a PSU and please disregard the Aux1 and Aux2 Speedfan readings as they are anomalous.

Drivers or power supply problems could cause such a display problem with drivers being more likely as power problems will often cause artifacting or in the case of a weak power supply no display, can`t rule either out atm.

[Markh510]

The psu is a g7 power extreme 780W

[Markh510]

Gonna take everything out and give another go with the compressed air just to be certain that’s not an issue anymore if it was in the first place

[phillpower2]

I would definitely remove the add on video card to lighten the load on the PSU.

Sorry but got to be honest, I wouldn’t trust that PSU as a doorstop even when new :cautious: claiming to be 780W but only has a max combined output of 600W, there is no mention of how long any warranty period may or may not be or any efficiency rating, good brands will typically have at least a 3 year warranty and be a minimum of bronze efficiency rated for stability, from the info available your PSU could potentially be 6 years old and if so should have been retired years ago and with the leads cut off it to stop it from being reused.

A JonnyGuru thread from almost 5 years back here regarding the brand of your PSU, the 780W gets a mention about not being the best about half way down the page.

Please note that there is one thing that is possibly worse than using a known poor quality brand of PSU and that is using one that is unheard of, the G7 is not listed on the PSU database, for brands of PSU to trust and brands to avoid please refer to the two attached links here and here

PSU database here

Edit to add, Don`t meant to intentionally alarm you Mark but please see the Tier Five information here

[Markh510]

It’s cool lol I was looking to possibly look for upgrades/updates in parts anyway so looks like the PSU is definitely on the list lol
Do you think that it could be as simple as that then? because to be honest i would say my whole PC was bought at the same time and so could well be 5/6 years old and i have never had any issues with anything until now…

[phillpower2]

The problem with having a weak PSU is that it deprives the hardware of the clean and stable power that it needs to function properly, an add on GPU is typically the most demanding component and what happens is that when the weak PSU is put under load it not only struggles to produce the necessary power for the hardware it generates more heat in the process, but, this is only one reason why artifacting can occur, see info here and you will see the very similar VRAM artifacting that is shown in your screenshot #2 above, as mentioned above overheating and a bad power supply can damage all of the hardware and a GPU being the most power hungry is normally the first to have problems, this if the PSU does not pop first that is.

If not already done, remove the HD 7700 then post back with a couple of fresh HWMonitor and Speedfan screenshots for us, once we have had a look at those we will be better placed to advise on any hardware troubleshooting steps it may be worth you running.

[Markh510]

Here you go