#118 How to set memory speed in efi shell?

Hey guys, i'm desperately trying to set memory speed for my 24" iMac (early 2009) on 10.9.3.
Got a fancy memory upgrade but system will only recognize 1067Mhz instead of the native speed with 1600Mhz.
Did i miss something in the memory options of the efi shell or is this function not existing?
Cheers
Apeguerilla

[joevt]

I don't think the EFI Shell has such a memory option or that the function exists.

The iMac 24" (early 2009) only supports PC8500 DDR3 1066MHz SO-DIMM Memory.
http://support.apple.com/kb/SP507?viewlocale=en_US&locale=en_US