MSI 4870 MD1G crossfire problem

Question

i resently bought 2  msi 4870 MD1G  i installed them and i connected the bridges, installed catalyst 9.4.
and i found that crossfirex is unavailble in the control center i checked the hardware and its installed corectly also the bridges.
i re-installed the driver but no luck i also uninstalled the driver->runed safe mode->cleaned the ati registry with driver sweeper->installed the driver but no luck again.
and i didn,t found any option in my mob bios 2 siwtch bettwen single and daul PCI-e
i need help plzzzzzz 
Plus: every time when i use the pc, at the begining i see dots, lines , and screen tearing in media and games and the temperature  rise 2 66-71,and after  1-2 min the screen goes black then return again and all the problems gone and the temp return 2 normal.
is it a hardware problem or a driver issue?

Answer 1

thx for the help but i already fixed the problem:
for who is having a problem similar 2 me use this method
1) First uninstall all component CCC with traditional method through Vista x64 "uninstall a program"
2) Reboot the system and again make sure everything is off the system.
3) Go back to the "Uninstall a program" list and ensure that there is no other ATI specific software listed. If there is use the same method and remove it and restarting the system when complete.
4) Go to computer under "C" hard drive and locate folder ATI and remove it manualy.
5) This is what I have made myself : restart computer in safe mode and with driver sweeper clean all entries concerning ATI driver.
6) Restart in normal mode and clean registries entries with the soft Ccleaner.
7) Shut down the computer and retrieve the cards and replug only one card .
8) Restart the computer.
9) disable non microsoft services and startup programs:
- click Start and then click Run (execute)
-Type "msconfig" without quotes
-click on tab "General" and after click on "Selective Startup" and clear the "Load System Services" check box.
-Under tab "Startup" click to clear "Load Startup Items"
-On the "Services " tab click to select the "Hide All Microsoft Services" check box and then click "Disable All"
-click applies and ok and restart the computer.
10) Installing the driver with only one card pluged
11) shut down the computer and install the second card with bridge interconnect.
12) restart the computer.
source:game.amd.com ( forums)