whats the difference between a EIDE HD and a IDE HD?

Noriaki

Lifer
Jun 3, 2000
13,640
1
71
EIDE = Enhanced IDE.

Unless you are dealing with really old stuff the E is implicit.

You won't find a non-Enhanced IDE hard drive in at least the last 3 years. Probably longer.
 

CotswoldCS

Senior member
Sep 14, 2000
384
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IDE stands for Integrated Drive Electronics. EIDE stands for Enhanced Integrated Drive Electronics. EIDE is now the standard interface for hard drives, CD-ROM drives and other drives. IDE drives will still work on an EIDE controller but is comparatively old and much slower.
 

eshtog

Diamond Member
Jun 7, 2001
3,449
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oh ok I see because a have a WD Caviar 30gb HD and on the box it says EIDE HD I tought it was strange because everyone talks about IDE HD not EIDE.
 

benjamit

Senior member
Dec 22, 2000
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well what's ata then?

and ultra?

i use these terms indiscriminately when looking for parts but when talking to people i normally use ide

what's the diff?
 

CotswoldCS

Senior member
Sep 14, 2000
384
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I love computer jargon (!):


ATA Stands for AT (Advanced Technology) Attachment

ATA: Known also as IDE, supports one or two hard drives, a 16-bit interface and PIO modes 0, 1 and 2.

ATA-2: Supports faster PIO modes (3 and 4) and multiword DMA modes (1 and 2). Also supports logical block addressing (LBA) and block transfers. ATA-2 is marketed as Fast ATA and Enhanced IDE (EIDE).

ATA-3: Minor revision to ATA-2.

Ultra-ATA: Also called Ultra-DMA, ATA-33, and DMA-33, supports multiword DMA mode 3 running at 33 MBps.

ATA/66: A new version of ATA proposed by Quantum Corporation, and supported by Intel, that will double ATA's throughput to 66 MBps.

ATA/100: Latest version, running at 100MBps.


Hope this helps!
 

benjamit

Senior member
Dec 22, 2000
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so really its all the same unless you're talking about older equip

where older stuff my not work with newer stuff due to some minor limitation

it seems that all of this is marketing
 

Jiggz

Diamond Member
Mar 10, 2001
4,329
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EIDE is actually the version of WD for the ATA standard. It's the improved version of the IDE wherein CD-Rom, ZIP, DVD, etc were able to connect or share the HD controller thru the IDE. The older version IDE strictly connects HDD. If you have to install CD-Roms before you need a separte IDE controller card and usually they are SCSI based.