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Click to See Complete Forum and Search --> : Whats "Ultra DMA & Ultra DMA 66"?

Fuzzy Z
09-12-1999, 06:58 AM
Whats "Ultra DMA & Ultra DMA 66"? It has something to do with the IDE controllers I know that. But how does it work, whats the benifits, do you need special IDE cables, how do you set it up? Thanks people!!!
TigerStrike2
09-12-1999, 11:16 AM
It has to do with the transfer rate between the HD and the mobo... Ultra DMA has a burst transfer rate of 33.3MB/s and is supported by all new mobo's. Ultra DMA 66 is (you guessed it!) a burst transfer rate of 66.6MB/s and requires a special card or a really really new motherboard.

Hope this helps...
CMonster
09-12-1999, 11:54 AM
Keep in mind what Tigerstrike2 just said - "has a burst transfer rate," and that is not a sustained transfer rate. If you want really excelent hard disk performance I would recommend that you at least consider SCSI.

While IDE is still much cheaper than SCSI, the performance gains of SCSI, superior reliability, and the ability to chain up to 7 devices on an adapter, make SCSI the better choice.

[This message has been edited by CMonster (edited 09-12-99).]