Supermicro X6DVL-EG2 User Manual download pdf (Page 59)

Chapter 4: AMI BIOS

4-7

PIO Mode

IDE PIO (Programmable I/O) mode programs timing cycles between the IDE

drive and the programmable IDE controller. As the PIO mode increases,

the cycle time decreases. The options are Auto, 0, 1, 2, 3, and 4. Select

Auto to allow the AMI BIOS to auto detect the PIO mode. Use this value if

the IDE disk drive support cannot be determined. Select 0 to allow the

AMI BIOS to use PIO mode 0. It has a data transfer rate of 3.3 MBs.

Select 1 to allow the AMI BIOS to use PIO mode 1. It has a data transfer

rate of 5.2 MBs. Select 2 to allow the AMI BIOS to use PIO mode 2. It has

a data transfer rate of 8.3 MBs. Select 3 to allow the AMI BIOS to use PIO

mode 3. It has a data transfer rate of 11.1 MBs. Select 4 to allow the AMI

BIOS to use PIO mode 4. It has a data transfer rate of 16.6 MBs. This

setting generally works with all hard disk drives manufactured after

1999. For other disk drives, such as IDE CD-ROM drives, check the speci-

fications of the drive.

DMA Mode

Select Auto to allow the BIOS to auto detect the DMA mode. Use this

value if the IDE disk drive support cannot be determined. Select SWDMA0

to allow the BIOS to use Single Word DMA mode 0. It has a data transfer

rate of 2.1 MBs. Select SWDMA1 to allow the BIOS to use Single Word

DMA mode 1. It has a data transfer rate of 4.2 MBs. Select SWDMA2 to

allow the BIOS to use Single Word DMA mode 2. It has a data transfer

rate of 8.3 MBs. Select MWDMA0 to allow the BIOS to use Multi Word

DMA mode 0. It has a data transfer rate of 4.2 MBs. Select MWDMA1 to

allow the BIOS to use Multi Word DMA mode 1. It has a data transfer rate

of 13.3 MBs. Select MWDMA2 to allow the BIOS to use Multi-Word DMA

mode 2. It has a data transfer rate of 16.6 MBs. Select UDMA0 to allow

the BIOS to use Ultra DMA mode 0. It has a data transfer rate of 16.6

MBs. It has the same transfer rate as PIO mode 4 and Multi Word DMA

mode 2. Select UDMA1 to allow the BIOS to use Ultra DMA mode 1. It has

a data transfer rate of 25 MBs. Select UDMA2 to allow the BIOS to use

Ultra DMA mode 2. It has a data transfer rate of 33.3 MBs. Select UDMA3

to allow the BIOS to use Ultra DMA mode 3. It has a data transfer rate of

66.6 MBs. Select UDMA4 to allow the BIOS to use Ultra DMA mode 4 . It

has a data transfer rate of 100 MBs. The options are Auto, SWDMAn,

MWDMAn, and UDMAn.

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 105 106

No comments

Supermicro X6DVL-EG2 User Manual Page 59