CyberResearch CPEN GX-333-X Manuale Utente

 

©Copyright 2007 CyberResearch, Inc. 

 
 

PIO means Programmed Input/Output.  Instead of constantly issuing BIOS commands to facilitate 
I/O transfers to and from the hard disk drives, the PIO mode allows the BIOS to issue I/O 
requests and let CPU and IDE controller to fulfill the requests.  Four modes from 0 to 4 are 
supported.   

1. 

IDE Primary Master PIO 

2. 

IDE Primary Slave PIO 

 

Π

Auto  (D

EFAULT

)  Allows the computer to select the correct mode 

Π 0 

 

PIO mode 0 selected with a maximum transfer rate of 3.3MBps 

 

 

PIO mode 1 selected with a maximum transfer rate of 5.2MBps 

 

 

PIO mode 2 selected with a maximum transfer rate of 8.3MBps 

 

 

PIO mode 3 selected with a maximum transfer rate of 
11.1MBps 

 

 

PIO mode 4 selected with a maximum transfer rate of 
16.6MBps 

Π

The Ultra DMA (UDMA) mode for the following HDDs can all be selected. 

1. 

IDE Primary Master UDMA 

2. 

IDE Primary Slave UDMA 

3. 

IDE Secondary Master UDMA 

4. 

IDE Secondary Slave UDMA 

Π Auto 

(D

EFAULT

)

Allows the computer to select the correct UDMA 

Π Disabled 

 

Disables the UDMA for the HDD device 

Π

The IDE DMA transfer access option allows you to determine whether or not the IDE device 
installed in the system will have a DMA device. 

Π Disabled 

 

The IDE HDD installed in the system will not have DMA 
transfer access 

Π Enabled 

(D

EFAULT

)

The IDE HDD installed in the system will have DMA 
transfer access 

 

Π

The IDE HDD Block Mode option should only be enabled if your IDE HDD device supports block 
mode. Please refer to the documentation that came with your IDE HDD device to check the 
compatibility.  

Π Disabled 

 

The BIOS will not detect block data transfers. 

Π Enabled 

(D

EFAULT

)

The optimal number of block read/writes per sector the 
drive can support will be automatically detected. 

Π

The Onboard FDC Controller option allows you to enable or disable the Floppy Drive controller. 

. 

Π