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BIOS SETUP
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CPU Internal Cache/External Cache
Cache memory is additional memory that is much faster than conventional DRAM (system
memory). CPUs from 486-type and up contain internal cache memory. Most, but not all,
modern PCs have additional (external) cache memory. When the CPU requests data, the
system transfers the requested data from the main DRAM into cache memory for even
faster access by the CPU. The “External Cache” field may not appear if your system does
not have external cache memory.
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CPU L2 Cache ECC Checking
Select “Enabled” to make sure the data is accurate.
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Processor Number Feature
This function was designed with the internet in mind. Select “ Enable” to make the processor
serial number serve as a means of identifying your system.
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Quick Power On Self Test
Select “Enabled” to reduce the amount of time required to run the Power On Self Test
(POST). The Quick POST skips certain steps. We recommend that you normally disable
Quick POST. It’s better to find a problem during POST than to lose data during your work.
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First/Second/Third Boot Device; Boot Other Device
The original IBM PCs loaded the DOS operating system from drive A (floppy disk). Therefore,
IBM PC-compatible systems are designed to search for an operating system first on drive
A, and then on drive C (hard disk). However, the BIOS attempts to load the operating
system from the devices in the sequence selected in these fields. In addition to the traditional
drives A (“Floppy”) and C (“HDD-0”), options include “HDD-1”, “HDD-2”, “HDD-3”, and “CD-
ROM”; plus a “SCSI” hard drive, a “LS/ZIP” drive and a “LAN” drive. If your boot device is
not included in the list, you can set the “Boot Other Device” field to “Enabled”, and let the
system detect the drive automatically.
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Swap Floppy Drive
This field is effective only in systems with two floppy drives. Selecting “Enabled” assigns
physical drive B to logical drive A, and physical drive A to logical drive B.
