Thank you Drankoin, you help me very much... i promise donate you doges when finish your method... now i am learning about bios flash and make a usb boot Ms-dos...etc etc... but only with your cgminer.conf... now i have 650 khs aprox stables and only 74c... one day ago i was crazy with cgminer because i  only got 400k and 80c... but now ( if not consider bills) all is running ok. My rig are a 3 "cheap and fresh" shappire 7970... but one is on RMA   ( RMA can confirme that it is imposible put 3 in motheboard without riser, bruteforce power   lol )In the next days post more info... sorry for my english..,

Hola pues soy Mané de Badajoz y espero poder charlar y hacer negocios con vosotros. Un cordial saludo.

Hola estoy interesado.Un saludo