Let me amend that, could find the 533FSB, see
here, but couldn't find the 400FSB to overclock.
Using the codes in the Intel table, I can find 1.8Ghz (745) and other 100 (400) FSB which should overclock nicely, however, they all say they are socket 478, not 479, which need an
adapter.
Might have to go for a 133(533)FSB socket 479 CPU after all.