TYAN TIGERCUB ATX Manual page 49

CPU Internal Cache/External Cache
Cache memory is additional memory that is much faster than conven-
tional DRAM (system memory). CPUs from 486-type on up contain
internal cache memory, and most, but not all, modern PCs have addi-
tional (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.
Quick Power On Self Test
Select Enabled to reduce the amount of time required to run the power-
on self-test (POST). A quick POST skips certain steps. We recom-
mend that you normally disable quick POST. Better to find a problem
during POST than lose data during your work.
Boot Sequence
The original IBM PCs loaded the operating system from drive A
(floppy disk), so IBM PC-compatible systems are designed to search
for an operating system first on drive A, and then on drive C (hard
disk). However, modern computers usually load the operating system
from the hard drive, and may even load it from a CD-ROM drive. The
BIOS now offers a large number of boot devices and boot sequence
options.
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.
Boot Up Floppy Seek
When Enabled, the BIOS tests (seeks) floppy drives to determine
whether they have 40 or 80 tracks. Only 360-KB floppy drives have 40
tracks; drives with 720 KB, 1.2 MB, and 1.44 MB capacity all have 80
tracks. Because very few modern PCs have 40-track floppy drives, we
recommend that you set this field to Disabled to save time.
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