GTX 460 SLI .. glitch?

[kittems]

Ok ive had my system for awhile now, i7 950, 12 GB ram(forget the brand right now...) 2 GTX 460 768 MB in SLI, ASUS saber tooth mobo.
i just got the SLI set up like idk 1 or 2 months ago every thing been fine, but now when i start a game i get what i call texture tearing or stretching, and then my whole PC will freeze no BSOD.
I check for heat issues, no.
Checked for dust but i have dust filters and clean them once a month so i doubt that could be to bad, but anyway i sprayed it out with compressed air.
So every thing looks fine, i even ran dxdiag is says no issuses were found or w/e it says BUT when i turn off the SLI my games will run fine, just at a lower fps cuz no SLI..

SOOOOOo

does this mean my 2nd card is broken? or malfunctioning for w/e reason?

 

[DelroyMonjo]

Are the GPU's overclocked?
Remove a card and try 1 at a time, see if that offers any clues.
What are your PSU specs? Maybe it's going flaky on you. A GTX460 uses ~160W maxed out, a 768 model probably a bit less. So, 2 of them are a pretty good power draw, possibly as much as 25 Amps at full load. Do you have these wired using molex to 6-pin power connectors?
Try SLI at a lower screen resolution and see if tearing stops. What games are you playing? Maybe you need to reduce some of the 'eye candy' settings.

 

[kittems]

PSU - CORSAIR CMPSU-750TX 750W ATX12V v2.2 SLI Certified
HD - SAMSUNG Spinpoint F3 HD103SJ 1TB
RAM - Wintec AMPX 12GB (6 x 2GB) 240-Pin DDR3 SDRAM DDR3 160
CPU - Intel Core i7-950 Bloomfield 3.06GHz
Mobo - ASUS Sabertooth X58 LGA 1366 Intel X58
GPU - 2x ASUS ENGTX460 DirectCU TOP/2DI/768MD5 GeForce GTX 460 (Fermi) 768MB 192-bit GDDR5(they are 50% factory OC)
Heatsink - ZALMAN CNPS9900ALED 120mm 2 Ball Low-noise Blue LED CPU Cooler
OS - Microsoft Windows 7 Home Premium 64-bit

thats my exact stuff

update

When i dedicate the 2nd care to physx only i have no problems and still get a lil better fps then just 1 card.
I havent tried them 1 at a time yet i will later today