Fast Programmed I/O Modes
Possible values of an option:
[Auto], , , , , 
[Auto], [Mode 0], [Mode 1], [Mode 2], [Mode 3], [Mode 4]
The option description:
The given option allows to specify a data interchange mode (PIO Mode — Programmed Input/Output Mode) with the drive connected to the given channel of the standard IDE/SATA-controler of a chipset of the motherboard. As a rule, it is possible to use a mode of automatic determination of the maximum possibilities of the connected drive ([Auto]). In case of problems with the given specific disk it is possible to use sequentially slower, but also more reliable, in respect of compatibility with the old equipment, modes (maximum —  or [Mode 4], minimum —  or [Mode 0]).
For help we result the maximum speed of a data interchange with the drive of interface IDE or SATA for each of modes:
|PIO Mode 0||3.3 Mb/sek|
|PIO Mode 1||5.2 Mb/sek|
|PIO Mode 2||8.3 Mb/sek|
|PIO Mode 3||11.1 Mb/sek|
|PIO Mode 4||16.6 Mb/sek|
All modern hard disks, and also optical disk drives and to it similar devices work in mode PIO Mode 4.
Other options identical to destination: