Asus P55SP4 P/I-P55SP4 User's manual - Page 18

Feature Guide Large IDEHardDisks For IDE hard disk drives, the BIOS provides three modes to support both normal IDE hard disks and also drives larger than 528MB: Normal - for IDE drives smaller than 528MB Large - for drives larger than 528MB that do not use LBA. These can only be used with the MS-DOS operating system. LBA - for drives larger than 528MB and up to 8.4 GB (GigaBytes) that use Logic Block Addressing mode. Other IDE Devices Enhanced IDE allows the use of IDE devices other than hard disks. Two devices that previously required non-standard or adapted interfaces and are now available as standard IDE devices are Tape Backup and CD-ROM drives. These will now be able to take advantage of the ease of installation, lower cost and in some cases superior performance of Enhanced IDE, putting an end to the system configuration complications created by their earlier interfaces. To use IDE devices other than hard disks with this mainboard you may need to install a device driver in your system software configuration. Refer to the documentation that comes with any device you will install for instructions about this and any otther installation requirements. DualIDE Channel Support With the on-board PCI IDE controller you can connect up to four IDE peripheral devices to your system. With Enhanced IDE you can connect two devices to each connector. All devices are categorized the same way IDE hard disks have been in the past, with one device set as the "Master" device and the second as the "Slave" device. 1-13