Operating/Configuration
CX50x048 Version: 1.9
Gate A20 Option
Defines how the memory above 1MB is accessed. This should be set to Fast, in order to activate access
through the chipset. With the Normal setting it is accessed via the keyboard controller. This option may
speed up older computers. The first 64 K Block above 1 MB can be accessed in standard mode via address
line A20. DOS will anchor itself there, if DOS=High is inserted in Config.sys.
Typematic Rate Setting
This parameter is used to specify whether the options Keyboard Typematic Speed, Delay Before Keys
Repeat, Typematic Rate or Typematic Delay are available. If Disabled, the values are set to 6 characters per
second, with a keyboard delay of 250 ms. The settings can also be specified via the operating system.
Typematic Rate (Chars/Sec)
Specifies the repetition rate of the keyboard when a key is pressed. The options are 6, 8, 10, 12, 15, 20, 24
or 30 characters/second.
Typmatic Delay (Msec)
This value determines when the key function is activated after a key is pressed. The options are 250, 500,
750 or 1000 milliseconds.
Security Option
This parameter specifies the option for which a password applies. If the SYSTEM option is selected, a
password has to be entered during PC start-up. If the SETUP option is selected, a password is only required
for accessing the BIOS.
APIC Mode
This parameter switches the APIC Controller (Advanced Programmable Interrupt Controller) on or off.
According to the PC2001 regulations, the system may run in APIC mode. APIC mode offers extended IRQ
resources (depending on the board). Settings: Enabled or Disabled
MPS Version Control For OS
This option specifies what MPS version (Multi-Processor Specification) is used by this board. Setting options:
1.1 or 1.4 For older operating systems 1.1 should be used, otherwise leave as 1.4.
OS Select For DRAM > 64 MB
For OS/2 systems with more than 64 MB RAM, option OS/2 should be used.
HDD S.M.A.R.T. Capability
S.M.A.R.T. (Self Monitoring Analysis and Reporting Technology) is implemented in modern hard disks.
Among other things, in conjunction with suitable software this technology can be used to detect hard disk
read or speed problems at an early stage. If the option is activated, the system will issue a warning regarding
an impending crash, for example. The results can be analysed with Norton-Utilities from version 3.0, for
example.
Full Screen Logo
This option can be used to specify that the start logo should fill the whole screen during booting, thereby
hiding the start data. Setting options: Enabled, Disabled
4.3.2.1 CPU Features
This menu is used for setting the CPU behaviour with thermal profiles.
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