NEC MT-2550-24874C, Руководство по обслуживанию

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2-14 Setup and Operation
Boot Options
When the cursor is placed in the Boot Option field, you can select it by pressing
Enter
. The
Boot Options Submenu appears allowing parameters that affect the boot process to be set.
Boot Options Submenu
The Boot Options Submenu lets you check or change the following bootup parameters:
„
Boot Sequence
„
System Cache
„
Boot Speed
„
NumLock
„
Speaker
„
Setup Prompt
„
Hard Disk Pre-Delay
„
Typematic Rate Programming
„
Power-on COM1 Ring.
Boot Sequence
The BIOS attempts to load the operating system in the sequence listed here. The defaults
are as follows:
„
First boot device
−
CD-ROM
„
Second boot device
−
diskette drive
„
Third boot device
−
hard disk
„
Fourth boot device
−
disabled.
System Cache
The default for the System Cache field is “Enabled.” This field controls both the primary
and secondary caches. Setting the system cache to “Disabled” will hurt performance. This
might be required, however, when running software that utilizes software timing loops and
needs to be slowed down to execute properly.
Boot Speed
Boot speed refers to the system CPU cycles. The default boot speed is “Turbo.” “De-turbo”
mode slows the CPU by disabling the system cache and adding increased refresh cycles.