Black snow on screen?

[Sean W.]

now that i have good airflow in my case, i looked at the temp of my GPU and its at 40*C at idle and gets up to 70*C at load (used to be 50 idle and 85 at load ). so i figured it would be okay to overclock my Graphics card. but when i speed up the GPU and memory speed of my graphics card and run Furmark ( or play a game ) after not to long, i get what looks like black snow or static on the screen, its random and the each spot doesnt stay put for very long ( a fraction of a second ) i have no idea what is causing it, i thought it was heat but apparantly not... maybe someone can help me.. thanks..

i took a picture, and circled the " Black snow ", i could only see a few in that screen shot but there are literally hundreds that flicker all of the screen

 

[MindoverMaster]

I think you are pushing too much on your card. If you can play games fine without the overclock, leave it.

 

[Nitestick]

Looks like artifacting to me, it's a symptom of instability. It can be caused by either overclocking too much or overheating.

 

[Sean W.]

so how do i fix it?

 

[Slaymate]

It could be your gpu memory that's getting stressed and can't handle the overclock.

 

[KSoD]

so how do i fix it?

Well as they said above, it is caused by over clocking. So that would mean to fix it, dont over clock.

 

[Sean W.]

but i want to over clock... if i get a GPU cooler would that let me max out my card with out this happening?

 

[Slaymate]

Try lowering your overclock until the artifacts go away and then lower it just a little more to ensure stability for everyday use. There's a big difference between benchmark overclocking and everyday use overclocking. I would never run my hardware everyday at the speeds I post in the benchmark threads.

 

[patonb]

but i want to over clock... if i get a GPU cooler would that let me max out my card with out this happening?

I want a Pony, but I can't have it....

For all you know, its your memory thats not up to the overclock. A cooler will only help when youre stable, but it runs way to hot.

With OC, just cause one person can acheive it, there is 0 garrentee that anyone else can too.

Sucks but thats life....

 

[Sean W.]

hmm... so getting a VGA cooler is no guarantee that it will allow e ot max out my card with out any problems?