Home > Hard Disk Repair > WD Hard Drive Interface Guide For Compatible Cable Connections Part I

WD Hard Drive Interface Guide For Compatible Cable Connections Part I

October 14th, 2009

Which internal drive is the right choice: SATA or EIDE?

First, look at the connections on your computer.

SATA

Serial ATA (SATA) hard drives are quickly becoming the new standard in hard drive technology. Motherboard manufacturers now include SATA inputs on their boards. Because of their considerably narrower cables, SATA hard drives provide increased airflow and less clutter and in the computer system compared to EIDE drives. Some older computer system motherboards don’t have SATA ports, but a PCI SATA controller card can be installed to add support for SATA drives. If you don’t know whether your computer has SATA ports on the motherboard, refer to your computer or motherboard documentation or contact the motherboard manufacturer.

EIDE

Enhanced integrated drive electronics (EIDE), also called Parallel ATA (PATA), hard drives have been the standard in the computer industry for more than 10 years. Some newer computer system motherboards don’t have EIDE ports, but a PCI EIDE controller card can be installed to add support for EIDE drives. If you don’t know whether your computer has EIDE ports on the motherboard, refer to your computer or motherboard documentation or contact the motherboard manufacturer.

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Feature WD SATA Hard Drives WD EIDE Hard Drives
Maximum data transfer rate 150 MB/s or 300 MB/s 100 MB/s
Devices per cable One Two
Jumper block 8-pin (no Master/Slave settings) 10-pin (single, Master, Slave, and cable select (CSEL) settings)

Which internal drive is compatible with my operating system: SATA or EIDE?

Your operating system, as well as your hardware, must support the hard drive you choose:

Operating System WD SATA Hard Drive Compatibility WD EIDE Hard Drive Compatibility
Windows® Vista™ Yes Yes
Windows® 2000 or XP Yes Yes
Windows 98SE or ME No Yes
Mac® OS X Yes Yes
Mac OS 9.x No Yes

Note: Compatibility may vary depending on user’s hardware configuration and operating system.

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