Technical information
© Jean Louis-Guérin – V1.2a – September 2014 Page 29 / 69
4.7.3 Configuring the CBHD Hard Disk Driver
Run the SCSIDRV.PRG then Run CBHDCONF.APP. Load the CBHD.SYS from your boot partition
using Driver menu Load… command.
You can now modify several parameters according to your host
adapter and drives. For UltraSatan Drive I only found one
parameter that need to be checked.
From the Driver menu
select SCSI Driver…
Verify that the Identify
ICD is check marked (it
should be by default).
4.7.4 Removable Medium Drive Support
Not sure if there is any support for removable media in CBHD?
4.7.5 Accessing DOS Partitions
CBHD502 can directly access FAT16A partitions of less than 32 Mbytes.
When used with BigDOS the CBHD502 allow access to FAT16B partitions of up to 2GB. For example
I have tested a 2GB DOS partitions without problem.
Of course it is not recommended to use such a large partition for performance reason.
4.7.6 Accessing TOS&DOS Partitions
CBHD502 does not support TOS&DOS partitions.
Important Warning: Never try to access TOS&DOS partition with the CBHD502 hard disk driver.
You will get invalid data returned and you will probably corrupt the accessed partition.
4.8 SCSITools 6.5.2, and AHDI Driver Packages
Originally I had planned to present these hard disk drivers. However after testing it I discovered that
they only support a maximum size of 32MB for bootable partitions.
Because of this limitation and the fact they are very old I decided not to describe the procedures in this
document.