ooeric,
To the best of my knowledge the GSkill F2-8000PHU2-2GBHZ's have come with three different sets of IC's in the past.
*D9GKX
*D9GMH
*D9GCT

I had purchased my kit from newegg about 2 months ago and they came with D9GMH IC's. With that said I think the most common IC's with this kit were the GKX, then GMH, and probably the GCT being the least common IC's used in this kit. Granted I am no expert on what IC's this kit comes with but from reading reviews, articles, talking to other owners, and using the DDR2 IC's list the above seems to be true.