Quicker test, in fact. If everything in the "Logical drives" menu is dimmed, the PBI BIOS is disabled or somehow unresponsive.
So on the "troublesome" card, I have logical drives D1..D9 and DJ..DO as 'SIO' drives that appear to be selectable and not dimmed out.
Initially I had problems getting my Mac to read the card formatted by SDX, but I got that working using:
simon% diskutil list /dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *251.0 GB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_HFS mini 250.1 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 /dev/disk1 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: FDisk_partition_scheme *8.0 GB disk1 1: Windows_FAT_32 5.2 GB disk1s1 2: 0x7F 2.8 GB disk1s2 [note: the partition in question is disk1, partition 1 for me. If you're doing this yourself, THIS MAY BE DIFFERENT!] simon% diskutil eraseVolume FAT32 XFER /dev/disk1s1
... at which point I had a useable volume called 'XFER'
On a brighter front, using a 30 MB/sec 8GB card from Sandisk works just fine (although I haven't worked out how to preserve the D1:, ... Dn: logical drives through a power-cycle yet. At the moment, if I do:
- set D1: as the first 8000 sectors in FDISK
- power off then on again
- Type D1: then DIR
... I'll get another "138 Device does not respond". If I then type FORMAT and write a new directory with 'B', I can list my directories again. I can even get a directory listing after removing and re-inserting the card, then doing a shift-reset to reload the card config
Still, this is progress