I know that 1.5mm Gelid pads work for the XFX 6900 XT Bykski block because Holzmann tried it and told me it works in this forum, but I am not sure if it will work with my Asrock card. Techically it should work because both waterblocks come with 1.8mm pads so that means the blocks have the sane height for memoryyes. and by the way i'm really not sure if the cooler would have enough contact to the RAM for cooling