@Piru
My 37.300 works fine with a 1Gb HD so I dunno about the 40Mb barrier of the 37.300 kickstart, for me it's always been a fairytale
@cartmanau
I've had the exact same scenario with HD's in the A600 and A1200 as you have. The reason is simply that the HD is too slow for the IDE controller and HDToolbox with "pull" the IDE line again. (Pritty sure the kickstart 3.0 holds the IDE line for just a tad longer than the 2.0 and 3.1 holds even longer and that can be why the HD work on your A1200 but not on the A600.)
What I did to correct the problem was simply to cut pin 1 on the IDE cable (the marked one). This will work so the HD doesn't get a resetsignal and thus be ready after a warmreset. This can then be used in a combination with a "reset holding curcuit" that "holds" reset for sec or two... just enough for the HD to spin up and get ready.
