hi guys thanks for the replies! ok so i ll answer the questions asked :
I tried usb 2 and the ufx+ isnt even recognized. It is in total mix but not by windows... go figure.
Yes the graphic s card is nvidia (gtx) BUT was working fine for a day like i said.
Operating system is windows 8.1 x64 (no updates done)
total mix is V 1.42
motherboard chipset : Intel 5520
Firmware and drivers are the latest downloaded straight from RME website. toal mix 1.42, drivers madiface series: 0.9610
Usb cable is the one that came with the unit ( about 3-4 ft) i didnt try other cables yet i figured a new one from rme should do it ( plus was working fine for a day)
Errors i do get are also in the settings of the madiface, usb diagnotics IS NOT giving me 0,0,0 but random numbers as the audio drops. Yes i do mean those ( but the error i also mentioned came from latencyMon which stated a potentially problematic pagefile access (drive read access that can result in latency). But i never had any trouble with my old mbox3 so...
I tried all 3sb ports on the pcie card ( X4 ) result is still the same errors and dropouts.
Yes the settings of the computer is set to max energy ( no energy saving settings here )
Yes i disabled the speakers from the z800 workstation already in the bios, problem still persist.
I have quite a bit of usb peripherals that are connected, such as external hard drives, usb midi keyboards, mouse and keyboard.
I will try removing all unnecessary usbs leaving just the ufx + and report later.
I do not have access to another pc at the moment sadly.
Thank you again for the help it is greatly appreciated.
Cheers
L.