Gigabyte GA-P55 UD3R Review @ OCClub
“First off, I have to say that the GA-P55-UD3R shocked me when I was able to push the i7 870 to almost 4.4GHz. It fell just a tick below, because at a 210MHz bclock it did not want to give me any stability, even at reduced speeds. With that said, a bclock of 209MHz with a 21x clock multiplier proved fruitful and allowed the UD3R to shine. While I had problems going over 1600MHz with a set of dual sided DIMMs on the P55-UD6, I did not have that problem on the P55-UD3R.”