EMAC Em104P-i8523, User Manual, Page: 38 / 63

BIOS
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IDE Primary Master/Slave PIO
It allows your system HDD controller to run faster.
Rather than having the BIOS issue with a series of commands that
transferring to or from the disk drive, PIO (Programmed Input/Output) allows
the BIOS to communicate with the controller and CPU directly.
When Auto is selected, the BIOS will select the best available mode.
Setting: Auto (Default), Mode 0, Mode 1, Mode 2, Mode 3, Mode 4.
IDE Primary Master/Slave UDMA
It allows your system to improve disk I/O throughput to 33MB/sec with the
Ultra DMA33 feature.
Setting: Disabled, Auto.
IDE HDD Block Mode
It allows your HDD controller to use the fast block mode to transfer data to
and from your HDD drive.
Setting: Disabled, Enabled (Default).
USB Controller
Setting: Enabled (Default), Disabled.
USB 2.0 Controller
For using USB 2.0, it is necessary OS drivers must be installed first. Please
update your system to at least Windows 2000 SP4 or Windows XP SP2.
Setting: Enabled (Default), Disabled.