6970 CF flashing horizontal lines

[Geekazoid]

right im getting this annoying issue in games/sometimes on desktop and now and then i get these very quick flashes of an horizontal line its normally green but other times can be white randomly on the screen whats causing it???

i ran furmark and they dont increase with temperature


NOTE:- Vsync is on so its deffo not screen tearing...

 

[harmony]

Seems a bad contact of the CrossfireX bridge.

 

[Geekazoid]

right i can CONFIRM they green horizontal lines... I just ran Heaven Benchmark on loop 2nd loop in they start appearing...

had GPUZ running in back ground top card did not go beyond 83oc on the GPU core and bottom card did not exceed 82 oc... even now when the gpu are cooling down some lines are flashing...

Vreg temp didnt exceed 52oc

However something strange on card 2 in GPUZ log GPU #2 goes to 91oc yet the gpu temp did not go beyond 82oc..... what could be wrong??

 

[Insta]

I would try reseating the cards, confirm power connectors are secure and confirm the crossfire bridge is secure or try another bridge. Have you tried another video cable and working monitor? The temps seem okay, might be the monitor?