Can't really trust revisions as its all very inconsistent.
I've had a revision 1D4 that didn't work with a BPPC, and one that worked perfectly.
Also had the same experience with a 2B motherboard...
With the 1D4 that didnt work, I tried doing the timing fixes but it changed nothing.
Other accelerators (GVP 1230 and Blizzard 1230) worked fine with it.
