i used the default settings on cards
and the PSU's are the same 2x750w in 1 rig.

today i removed 1 card from that rig that stops and its working good.
but 1 card is just staying now.

the Fans speed i control with Trixx 6.1 .
if you have any proposals pls share with me .

that what wonders me is how is this possible
i did all the same things in 2 rig with the same hardware and every thing is Brand new.

if u can share any good app to control Fun Speed or any thing that i can yous i will b thankful
cuz i m new in this and have to learn . tnx