ATA interfaces, however, are not only used by hard drives but also CD-ROM and DVD drives. Thus (without additional card) the total number of hard drives plus loadable drives (CD, DVD) are restricted to four (floppy drives have a different interface). CompactFlash cards can be connected via an adapter and used as a hard disk.
Therefore can be connected to both the motherboard up to four hard drives. Older BIOS motherboards only allow you to start the computer from the first ATA interface, and even if the hard drive is jumpered as master, which becomes part of the Laptop Repair North Sydney.
The first drive is jumpered as Master – usually the default setting of drives, possibly only a second device on a cable is jumpered to Slave. Some drives do not have the third option Single Drive. This is used when the drive only depends on the cable, is a slave drive to have to get the first Master jumpered. This option is then to explain often master with slave present.
Where master or slave sit (at the end of the cable or Middle), does not matter (except, both drives are jumpered to Cable Select). Slave only Although mostly works, but is not configured as clean and is often prone to failure. Exception: With the newer 80-pin cables should be connected to the slave in the middle, and the connectors are labeled accordingly.
The ideal distribution of the drives on each port is disputable portable. It should be noted that traditionally two devices share the same cable and the speed that the slower device the bus is longer and thus which can brake faster and more efficiently.
In the standard configuration with a hard drive and a CD / DVD drive, it is therefore advantageous to use each of these devices with their own cable to a port on the motherboard. In addition to the jumpers, there is an automatic mode for the determination of addresses (Cable-Select), which, however, requires appropriate connection cables that were previously little used, but since ATA-5 (80-pin cable) are standard and can be handled by Laptop Repair North Sydney.
The first popular serial interfaces for hard disks were SSA (Serial Storage Architecture, developed by IBM) and Fibre Channel in the variant (FC-AL Fibre Channel arbitrated loop). SSA disks are now virtually no longer manufactured, but Fibre Channel disks are still built for use in large memory systems. Fibre Channel designates the protocol used, not the transmission medium. Therefore, these disks have despite their name, no optical characteristics, but an electrical interface.