Problem Solving; intermittent video signal...

[Jingo...]

Good morning all,

I'm trying to determine the cause of a niggling video fault with my self-build of around 2.5 years.

1GB Radeon HD 4670
Samsung Syncmaster T220

The monitor loses signal intermittently- sometimes during boot, sometimes when trying to view a pdf, certain websites (i.e. twitter/online pdf) and on occassions when I am just viewing my desktop; strangely (or perhaps not), when I alt+tab to outlook express/pshop the signal returns.

I have tried...

- swapping dvi cables: no change.
- using the vga cable: no change.
- 're-seating' the graphics card: no change.
- checking the gpu fan is spinning etc: all appears clean and 'normal'.
- GPU seems to be running at 34c - which doesn't strike me as excessively hot.

My instinct is telling me the graphics card needs replacing - but I wouldn't like to fork out for a new one if I could be overlooking a simple issue I'm unaware of.

Any thoughts or ideas on the above would be greatly appreciated

Many thanks,
Jingo

 

[Jingo...]

Have you tried the following:

• MB BIOS flash NO; having worked for 2.5 years would this really be an issue?
• Different gfx drivers - even older revisions. Yes - roll back and newest: no change.
• Dedicated VDU drivers - I don't have a clue about this ; no.
• GFX BIOS update I don't have a clue about this ; no.

Have you tested with another monitor?

No - I don't have that option at the moment.

99% chance it's the monitor ! So you're almost certain it is the monitor? Can I ask why you think it is that and not the Graphics card?

Hang on a sec....How long has this been happening ?

A week or so after 2.5 years of working without any issue

 

[Jingo...]

Thanks for your input - I still can't see how you're justifying this problem as being the monitor and not the video card.

The monitor works fine when used as an alternate screen for a laptop or xbox - surely this shows the monitor not to be at fault?

 

[Jingo...]

Thanks for your advice