hi folks,this is may configuration:
mb :gigabyte 990 fx d3 http://www.gigabyte.com/products/product-page.aspx?pid=3900#ov
cpu amd 6100fx
psu :cooler master 1200W silent pro gold
ram memory: 4gb hyper x
hdd: wd black caviar 1tb
pc case :cooler master HAF 932
and last two sapphire graphic cards 7950,
what is may problem , first I have download drivers for 7950 (12.6 version)then I install drivers but when i run gpuz on First gpu evrithin is fine but on other gpu shows same number of strem procesors as on 7970 but bandwidt is 20gb/s ,i switch the graphic cards place but no improvement again gpu 2 show same preformance as 7970 (number of stream procesor are 2042) bandwith is same 20gb/s , but when i disabled crosfire in catalyst and re run gpuz evrithing is fine i have original spec for both gpu-s.
Can any one help me about this issue , garphic cards are new , I suspect on my mb , could be the chipset problem i insatal drivers for mb from cd ,
i used this card for mobile phone unlocking, evrithing is fine when cross fire is disabled, ihave also another pc for this job evrithin is fine:
http://www.youtube.com/watch?v=fYU1B2ZF8Rc
Thanks in advance for any help.
mb :gigabyte 990 fx d3 http://www.gigabyte.com/products/product-page.aspx?pid=3900#ov
cpu amd 6100fx
psu :cooler master 1200W silent pro gold
ram memory: 4gb hyper x
hdd: wd black caviar 1tb
pc case :cooler master HAF 932
and last two sapphire graphic cards 7950,
what is may problem , first I have download drivers for 7950 (12.6 version)then I install drivers but when i run gpuz on First gpu evrithin is fine but on other gpu shows same number of strem procesors as on 7970 but bandwidt is 20gb/s ,i switch the graphic cards place but no improvement again gpu 2 show same preformance as 7970 (number of stream procesor are 2042) bandwith is same 20gb/s , but when i disabled crosfire in catalyst and re run gpuz evrithing is fine i have original spec for both gpu-s.
Can any one help me about this issue , garphic cards are new , I suspect on my mb , could be the chipset problem i insatal drivers for mb from cd ,
i used this card for mobile phone unlocking, evrithing is fine when cross fire is disabled, ihave also another pc for this job evrithin is fine:
http://www.youtube.com/watch?v=fYU1B2ZF8Rc
Thanks in advance for any help.