IDE HDD Block Mode If IDE HDD Block Mode Enabled, the BIOS will detect the block size of the HDD and send block command automatically. Select Disable if your harddisk not support the Block mode transfer. PCI Slot IDE 2nd Channel This option allows you disable the second channel IDE interface if you are not using it or you are using another peripheral as second channel IDE interface. On-Chip Primary/Secondary PCI IDE This option allows you disable the IDE interface if you are not using it or you are using another peripheral as IDE interface. IDE PIO Mode This option sets the PIO mode for all drives connected to the onboard PCI IDE. If this option is set to AUTO, the PIO mode will be set according to the value the drive reports with the auto detect harddisk function. The user may decrease the PIO mode by modifying this option Onboard FDD Controller The on-board floppy disk controller can be enabled or disabled. You can select enabled or disabled in this option. Onboard serial port 1(2) You can config the on-board serial port as COM1-COM4 or select �none� to disable the serial port. Onboard parallel port The on-board parallel port configed as LPT1 (378), LPT2 (278) or select �none� to disable the parallel port. Onboard parallel port mode You can select ESP (Standard mode), EPP(Enhanced mode) and ECP(Extended mode) for parallel port mode in this menu. ECP mode use DMA This option specifies which DMA channel will be used when the parallel port is set to ECP mode. Parallel port EPP type In EPP mode, there are two different versions-Ver. 1.7 or Ver.1.9. When you connect a device to the parallel port which using EPP mode, you may need to choice