System information

AMI BIOS
3-5
Standard --> Pri Master --> LBA/Large Mode
LBA/Large
Off
On
The enhanced IDE feature allows the system to use a hard
disk with a capacity of more than 528MB. This is made
possible through the Logical Block Address (LBA) mode
translation. LBA is now a standard feature of current IDE hard
disk on the market, because they are all above 528MB. Note if
HDD is formatted with LBA On, it will not be able to boot with
LBA Off.
Standard --> Pri Master --> Block Mode
Block
Off
On
This function enhances disk performance depending on the
hard disk in use. If enabled, it allows data transfers in block
(multiple sectors), and eliminate the interrupt handling time for
each sector.
Standard --> Pri Master --> 32Bit Mode
32Bit
Off
On
Enabling this item improves system performance by using 32-
bit instructions for disk access. Although IDE bus is always
16-bit, chipset will convert 32-bit instruction (command) to
two 16-bit commands continuously together, and save the
time to give second command. Note some old HDDs can not
support too close of two 16-bit commands, if you are not sure,
set it to Off.
Standard --> Pri Master --> PIO Mode
PIO
Auto
0
1
2
3
4
Setting this item to Auto for auto-detecting the speed of hard
disk drive. PIO mode represents data transfer rate of HDD, for
example mode 0 is 3.3MB/s, mode 1 is 5.2MB/s, mode 2 is
8.3MB/s, mode 3 is 11.1MB/s and mode 4 is 16.6MB/s. In
some cases, if your hard disk is unstable, you may manually
try the slower mode.
Caution: The first IDE drive on each channel is
recommended at far end side of cable. Refer
to section 2.3 "Connectors" for detail.