I hope this is the right place. Lately when I am about 5mins the screen goes blank. I am not sure if its a videocard issue or not! I have the latest drivers, I am not overclocking. This only happens when playing games and it never happens when browsing or watching movies!
The only reason I can come up with is that the side panel of my case isn't on as its broken. So all the internal organs are exposed somewhat! But I do have it up against a wall. Its been working fine this way for months!
EDIT: I am considering an upgrade to the card shortly anyway so maybe this will be the spur I need. Although my choice would be limited to 4890 or 5770 as I wouldn't pay the current price for the 5800/5900 series.
wow, your gpu temp are nice low...
Even my 4850 temp is just 59'C when idle....
May i know brand of your 4870?
Try to cleaning your gpu from dust(if any), from what u describes above i guess it's vaulty card... Still on warranty?
Also, is that still happen when u playing another games?