Gigabyte gtx460 superoverclock+sapphire 6970 vaporx

I got the gigabyte gtx460 superoverclock and sapphire 6870 vaporX with both I can't play games without vsync because I get a blurry line going vertically across my screen when I move why am I getting this am I doing something wrong my freind has 2 gtx480
In sli and gameplay is so smooth with same monitor

Uninstall all video related drivers, download and run driver sweeper( from phyxion.net) under safe mode, then install the latest ati drivers.

If that don't work try one of your friend's gtx480's on your computer to make sure it's not related to your system.

You CANNOT use 2 different graphics cards by different vendors to play games.

I thought you meant using either a 6850 or gtx460, if you bought it with the purpose of using like in an SLI setup to boost performance, you've wasted your money.

You will obviously have driver and performance issues using them like that, does the line dissapear when enabling vsync?

So that means the cards are the problem, try doing the driver sweeper thing and if it doesn't solve it then RMA or return them.

And does the line go away after enabling vsync? and does it only happen when you play a game?

try cleaning the drivers ad installing newest ones.

Also if you didn't uninstall the nvidia drivers before puttin the ati card in or viceversa then that's the most likely culprit to the problem, uninstall both drivers clean them then install ONLY the ones of the card you're gonna use

both machines

done as u said still the same

What all 3 graphics cards????? LOL OCZ 700w

Done that a while ago plus it's doing the same with other machine it's doing it on fps games don't u think could be monitor but maybe not if friends works ok on sli

If you say the cards do that on both machines, then it's probably a hardware problem with the cards, try it on a different OS( ubuntu maybe) and if the problem doesn't show up, then it's something to do with windows drivers.

Also are you using any adapters to connect the card to your monitor? If so try using a different one.

^If it was the monitor cable it wouldn't dissapear magically when enabling vsync.

Would a dodgy motherboard cause it I noticed since I've had it it doesn't notice all my ram I got 8gb and it notices only 6gb and yesterday droped to 4gb then back to 6gb after restart

It's weird line disappears when vsync is on maybe a slower card would help or maybe a 120hz monitor ?

Usually turning Vsync off means Higher frames and you will see tearing across the screen as you turn which is what your seeing right?

I get the line when moving forward and turning

So your desktop is refresh rate is 60Hz. It looks normal when Vsync is enabled because it stops the fps going above 60

Its all down to your monitors refresh rate but im not sure if their is any way to fix this. Is 60Hz the highest this monitor will go to?, you could always try limiting the fps which is not always easy to do in games, its an alternative to vsync.

Oh yeah Does this happen on every game you play?

Yeah tearing is normal just use vsync, but vsync does make it feel a bit laggy, so like I said you can always try to limit fps might not make it feel laggy.

Thought it wasn't doing it with 4670 but is thought that would be a slower card