ASRock M266A R3.0 User Manual - Page 18

After entering the hard disk information into BIOS, use a disk utility, such as FDISK, to partition and format new IDE hard disk drives. This is necessary so that you can write or read data from the hard disk. Make sure to set the partition of the Primary IDE hard disk drives to active. [CD/DVD]: This is used for IDE CD/DVD drives. [ARMD]: This is used for IDE ARMD (ATAPI Removable Media Device), such as MO. Cylinders This is used to configure the number of cylinders. Refer to the drive documentation to determine the correct value. Heads This is used to configure the number of read/write heads. Refer to the drive documentation to determine the correct values. Write Precompensation Enter Write Precompensation sector. Refer to the drive documentation to determine the correct value. Sectors This is used to configure the number of sectors per track. Refer to the drive documentation to determine the correct value. Maximum Capacity This field shows the drive's maximum capacity as calculated by the BIOS based on the drive information you entered. LBA Mode This allows user to select the LBA mode for a hard disk > 512 MB under DOS and Windows; for Netware and UNIX user, select [Off] to disable the LBA mode. Block Mode Set the block mode to [On] will enhance hard disk performance by reading or writing more data during each transfer. Fast Programmed I/O Modes This allows user to set the PIO mode to enhance hard disk performance by optimizing the hard disk timing. 32 Bit Transfer Mode It allows user to enable 32-bit access to maximize the IDE hard disk data transfer rate. Ultra DMA Mode Ultra DMA capability allows improved transfer speeds and data integrity for compatible IDE devices. Set to [Disabled] to suppress Ultra DMA capability. 18