Ultra DMA (under construction, more to come)
The latest improvement of EIDE is called Ultra DMA or Ultra ATA. It is a new interface, patented by
Quantum. It is supported by all system board manufacturers.
The technique consists of an improvement in the interface - the guiding electronics, which deliver the hard
disk data to the system board. Quantum succeeded in removing bottle necks in the existing guiding
electronics to the EIDE disks. The hard disk speed in itself has not improved, but its data busses have
been optimized.
Practical measurements show that Ultra DMA disks (Quantum ST or the very powerful IBM Deskstar 5)
perform 15-25% better than similar PIO 4 disks. This is a clear improvement, even though the disks in no
way can deliver the 33 MB/sec., as advertised.
To be able to get the the benefits of such a disk, the system board and with that the chip set must be
prepared for Ultra DMA, so you can utilize such a disk. As always when you buy a new PC, check the chip
set. It is important that it supports Ultra DMA, which provides a solid performance increase at no extra
The latest improvement of EIDE is called Ultra DMA or Ultra ATA. It is a new interface, patented by
Quantum. It is supported by all system board manufacturers.
The technique consists of an improvement in the interface - the guiding electronics, which deliver the hard
disk data to the system board. Quantum succeeded in removing bottle necks in the existing guiding
electronics to the EIDE disks. The hard disk speed in itself has not improved, but its data busses have
been optimized.
Practical measurements show that Ultra DMA disks (Quantum ST or the very powerful IBM Deskstar 5)
perform 15-25% better than similar PIO 4 disks. This is a clear improvement, even though the disks in no
way can deliver the 33 MB/sec., as advertised.
To be able to get the the benefits of such a disk, the system board and with that the chip set must be
prepared for Ultra DMA, so you can utilize such a disk. As always when you buy a new PC, check the chip
set. It is important that it supports Ultra DMA, which provides a solid performance increase at no extra
No comments:
Post a Comment