just found dtparam=pciex1=off in my config.txt just changed it to just dtparam=pciex1 and it now sees the drive on my nvme hat so am just going to try the socket on the battery board again to see if that works now that the config.txt file has been changed, one to look out for as i used a trixie build from this group for the cm5 so others might also have it set to off.
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