B&R Industries Provit 5000 User Manual - page 258
Provit 5000 User’s Manual
257
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Software • BIOS System for System Units with Socket 7 (ZIF)
Security Option
Here you can select between Setup and System. This option appears after a
password is requested. If you have a password, select whether the password is
required every time the system boots or only when you enter Setup.
PS/2 Mouse Function Control
If you are using a PS/2 pointing device, select Enabled. When using a serial
pointing device, please deactivate this option.
PCI/VGA Palette Snoop
This option is set as default to Disabled and should not be changed.
OS Select For DRAM > 64MB
If more than 64 MB DRAM is installed on your IPC, then you must select between
the operating system "OS2" and "Non-OS2".
Shadowing
Shadow settings are only valid for ISA cards. Shadowing means that software
which is found on a ROM chip of an ISA card (Firmware) in RAM, can be copied.
The data can be read from there with the faster system bus.
This results in improved performance of Firmware programs (e.g. BIOS, Video
BIOS etc.). However the size of high memory in RAM (640kB - 1MB) is reduced
(e.g. reduction in the high memory range available for loading device drivers).
Video BIOS Shadow and C8000-CBFFF Shadow
These settings have no function, as the 42 KB size VGA BIOS is copied
(shadowed) in every section of RAM .
Note: The last 8 KB of the memory area C8000 to CBFFF are available.