fan full speed

Hello everyone, I’ve a Mac Pro 4,1 flashed to 5,1 that is running constantly all the fans in full speed (very loud). This happens even before the booting sound. So I downloaded TG Pro to see if all sensors and temperatures are OK. I got the PS, EXHAUST AND INTAKE fans in 0 RPM. But they’...

hi guys, i've recently got one his 7950 iceq iturbo, with single fan and two 6 pin power, one dvi, one hdmi, two minidp, flashed smoothly on pc, then move to mac pro 5.1 and power on, it shows the boot apple screen, but goes half way before user, then restarts, then again, dont know why, thougt...