I have one, & on unlocking the pipes i get slight sparklies. i am hopeful that this is a heat issue rather than defective pipes as this baby gets HOT however i was wondeirng if anyone else here has this card? if so what are your experiences of it, with the passive cooler, & whether you felt the need to upgrade to active cooling? also do you know what the DDR ram is rated at? am guessing tis 2.2ns however confirmation would be great. have found reviews which allowed the core etc to be oc'ed slightly without issues but no mention of the pipes, & am guessng that unlocking these would cause a lot of heat generation?? cheers M.