its your power supply. i believe there's not even a brand name on it.
as far as the chipset is concerned, im using a asus p35 and a q6600 as well.
Thanks for the input.
How did u work out that the psu was unbranded?(i cant see any names on it)
The fans r running,but is that not enough?.....does the m/board need more power and the psu is struggling to power everything at once?
Everything is pointing to the psu...unless the card is faulty.