did you test without the thermalright heatspreaders, were all tests done with them? did you need to remove the stock heatspreaders to use them? if you tested without, did they make a difference?

i bought 4 kits of the 667 and 800 a-data's for friends builds (lower budget) and they all worked flawlessly. a set of the 667's did 462 memtest stable @ 1.8v when i was playing with them. and at the time you couldn't touch the price.