NEXCOM NEX 852VL2 - Manual (Page 45)

If set to Enabled, enables you to set the Typematic Rate and Typematic Delay. When Disabled, the follow-
ing two items (Typematic Rate and Typematic Delay) are irrelevant. Keystroke repeats at a rate determined
by the keyboard controller in your system.
Typematic Rate (Chars/Sec): When the typematic rate setting is Enabled, you can select a
typematic rate (the rate at which character repeats when you hold down a key) of 6, 8, 10, 12, 15,
20, 24, or 30 characters per second.
Typematic Delay (Msec): This setting controls the time between the display of the first character
and successive characters. There are four delay choices: 250ms, 500ms, 750ms and 1000ms.
Security Option
Enables you to select whether the password is required every time the system boots or only when you enter
Setup.
System: The system will not boot and access to Setup will be denied if the correct password is
not entered at the prompt.
Setup: The system will boot, but access to Setup will be denied if the correct password is not
entered at setup.
MPS Version Control for OS
This feature is only applicable to multiprocessor motherboards as it specifies the version of the Multi-
Processor Specification (MPS) that the motherboard will use. The MPS is a specification by which PC
manufacturers design and build Intel architecture systems with two or more processors. MPS version 1.4 is
required for a motherboard to support a bridgeless secondary PCI bus.
OS Select for DRAM>64MB
Set to OS2 if the system memory size is greater than 64 MB and the operating system is OS/2, otherwise
select non-OS2 option.
Spread Spectrum
The BIOS usually offers two levels of modulation - 0.25% or 0.5%. The greater the modulation, the
greater the reduction of EMI. Therefore, if you need to significantly reduce your motherboard's EMI, a
modulation of 0.5% is recommended.
In most conditions, frequency modulation via this feature should not cause any problems. However,
system stability may be slightly compromised in certain situations. For example, this BIOS feature may
cause improper functioning of timing-critical devices like clock-sensitive SCSI devices.
Spread Spectrum can also cause problems with overclocked systems, especially those that have been
taken to extremes. Even a slight modulation of frequency may cause the processor or any other
overclocked components of the system to fail, leading to very predictable consequences.
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