I am not sure what "rev ss" means. if you mean BIOS version SS, that implies motherboard version 1.01. If so, then I have one running at home with 256MB Kingston ValueRAM PC100 @ 124 FSB.
Note all 256MB sticks are not equal! I have seen messages stating that the BX based motherboards (and the BH6 is one of them) do not take high-density RAMs. Either that statement is incorrect, or the Kingston is not high-density.
JesseKnows