jst got round to fitting this bit of kit and the amiga wont boot with it fitted

I read somewhere that the firmware of the csmk2 might need upgrading for it to work but when i tried this i got a message saying i needed to set the write-enable jumper on the csmk2 (i didnt know there was such a jumper).
Anyone know hwere i could get an english manual for either of these (the cpu and/or scsi add-on)? or how the firmware update can be done (where is this jumper)?
cheers,
Aled.