Siemens SIMATIC Rack PC 840 V2 Operating Instructions Manual page 131

USB Boot
USB legacy
keyboard/mouse
Default primary
video adapter
Frame Buffer
Size
Enable memory
gap
"I/O Device Configuration" submenu
Figure 16-13 "I/O Device Configuration" submenu
The resources used by an interface are released when you disable the interface in question.
The I/O addresses and interrupts are pre-assigned; it is advisable not to change these
default assignments.
SIMATIC Rack PC 840 V2
Operating Instructions, Edition 05/2006, A5E00248055-04
[Disabled] It is not possible to boot from USB. USB keyboard and mouse
legacy support can be enabled.
[Enabled] It is possible to boot from USB.
[Disabled] The USB keyboard and mouse can be used in the BIOS Setup
and with operating systems which support the USB interface.
DOS and Windows NT cannot be operated.
[Enabled] The ISA bus is de-activated. DOS and Windows NT can be
operated by means of the USB keyboard. This means that the
operation of DOS-based tools such as Image Creator is
possible.
[AGP] BIOS messages are output via the onboard AGP interface.
[PCI] BIOS messages are output via installed PCI cards.
[8 Mb] The frame buffer size can be adapted to the graphics
[16 MB] requirement of your application.
[32 MB]
[Disabled] The onboard RAM is fully available.
[Enabled] A 1 MB area of the RAM beginning at 15 MB (address F0 0000 -
FF FFFF) can be used by auxiliary ISA cards.
Detailed descriptions
16.5 BIOS Setup
16-33