it makes sense that the coolers are only packaged with lenovo RDIMMs. because they have on-board memory buffer chips, they run hotter than uDIMMs. in fact, unless you run RDIMMs, the coolers aren't necessary.
regarding duckys20's question, the coolers aren't built for the S20 because the S20 doesn't accept RDIMMs. plus, for the same reason i mentioned above, a memory cooler isn't necessary on an S20 whatsoever.
ThinkStation D10 6427CTO · (2x) 3.0GHz E5450 · 16GB · 2.7TB SAS · FX 4800 · Server 2008 R2 x64
ThinkPad X61s 7666B7U · 1.8GHz L7700 · 8GB · 64GB SSD · AFFS SXGA+ · Server 2008 R2 x64
ThinkPad X200T 745068U · 2.13GHz SL9600 · 4GB · 160GB SATA · WXGA EMT · 7 Ultimate x64
NEC MultiSync 3090WQXi
IBM UPS 1500TLV 2130R5X
