IDE is short for Integrated Device Electronics, a hard disk transmission interface, which has another name called ATA (AT Attachment), both terms are used by vendors to refer to the same thing. IDE specifications have since progressed, and the introduction of EIDE (Enhanced IDE) specifications name. Enhanced IDE) specification name, and this specification is also known as Fast ATA, the difference is that Fast ATA is exclusively referring to the hard disk interface, while EIDE also developed the connection of non-hard disk products such as CD-ROM standard. This IDE standard for connecting non-hard disk drives is also known as the ATAPI interface. Faster interfaces have been introduced since then with names like ATA, Ultra ATA, ATA/66, ATA/100, and so on.
Motherboard IDE interfaces
Early IDE interfaces had two transfer modes, a PIO (Programming I/O) mode and a DMA (Direct Memory Access) mode. Although DMA mode takes up less system resources, it requires additional drivers or setups, and is therefore less widely accepted. Later on, as the speed requirement became higher, DMA mode was directly supported by the operating system due to its better execution efficiency, and vendors introduced faster and faster transfer speed standards for DMA mode. And from Intel's 430TX chipset began to provide support for Ultra DMA 33, providing a maximum of 33MB/sec data transfer rate, and later quickly developed to ATA 66, ATA 100, and Maxtor put forward the ATA 133 standard, respectively, to provide 66MB/sec, 100MB/sec and 133MB/sec maximum data transfer rate. It is worth noting that the ATA 133 standard proposed by Maxtor did not gain wide support in the industry. Among the hard disk drive manufacturers, only Maxtor itself adopts the ATA 133 standard, while Hitachi (IBM), Seagate, and Western Digital all adopt the ATA 100 standard, and among the chipset manufacturers, only VIA, SIS, ALi, and nViidia support the sub-standard. Intel only supports the ATA 100 standard.
The various IDE standards are very backward compatible, for example, ATA 133 is compatible with ATA 66/100 and Ultra DMA 33, and ATA 100 is compatible with Ultra DMA 33/66.
Special attention should be paid to the fact that for IDE interfaces with ATA 66 and above, you must use the specialized 80-core IDE
Special attention should be paid to the fact that for the ATA 66 and higher IDE interface transfer standards, a dedicated 80-core IDE cable must be used, which has an additional 40 ground wires for signal stability compared to the normal 40-core IDE cable.
These are traditional parallel ATA transmission methods, and now there is Serial ATA (Serial ATA, SATA for short), the maximum data transfer rate is further increased to 150MB/sec, and in the future it will be increased to 300MB/sec, and its interface is very small, and the wires are very thin, which is conducive to the flow of air inside the chassis to strengthen the Heat dissipation effect, but also make the chassis interior looks less cluttered. SATA also has the advantage of supporting hot swapping compared to parallel ATA.
The SATA interface on the motherboard
When purchasing a motherboard, there is no need to worry too much about how fast the IDE interface transfers. In fact, the performance of hard disks in the ATA 100, ATA 133, and SATA 150 is almost the same as that in the ATA 100, ATA 133, and SATA 150, as the hard disk performance bottleneck is limited by the hard drive's mechanical structure and the way the data is accessed, the hard disk performance bottleneck is the hard disk's internal data transfer rate instead of external. Interface standards, the current mainstream hard disk internal data transfer rate from the ATA 100 100MB/sec are still far away. The newest version of the Intel? Core? processor is the Intel? Core? processor, which is the most powerful and efficient way to maximize performance.