Siemens SIMATIC Rack PC 840 Manual page 155

Support Removable Disks under BIOS as Fixed Disks
If you enable this function, you can treat removable disk drives such as MO drives
just like fixed disk drives without having to install additional software.
Boot Only
Alls Disks
Disabled
Caution
When using this function you may not remove the disk from the removable disk
drive while the server is on.
Display Ctrl + A Message During BIOS Initialization
This setting determines whether the message
Press <Ctrl> <A> for SCSISelect (TM) Utility!
appears when you power up the system.
Even if you disable display of this message, you can still call SCSI Setup using the
Ctrl + A key combination when starting the system.
Enabled
Disabled
BIOS Support for Bootable CD-ROM
This setting enables booting from a bootable CD-ROM
Enabled
Disabled
BIOS Support for Int 13 Extensions
This setting determines whether the SCSI BIOS supports a hard disk drive with
more than 1024 cylinders. Enabled is the default setting.
Enabled
Disabled
SIMATIC Rack PC 840 Manual
A5E00104826-03
Only the selected boot removable disk drive is treated like a fixed
disk drive (default setting).
All removable disk drives supported by the BIOS are treated as
fixed disk drives.
No removable disk drive is treated as a hard disk drive. You need
special drivers for the removable disk drives as they are not
supported by the BIOS.
The message is displayed when powering up (default setting).
The message is not displayed when powering up.
Booting from a CD-ROM is possible (default setting).
Booting from a CD-ROM is not possible.
Hard disk drives with more than 1024 cylinders are supported
(default setting).
Hard disk drives with more than 1024 cylinders are not supported.
Controller
8-11