Ata/133 Supported - AOpen AX45H-8X Max Online Manual

A X 4 5 H - 8 X M a x
A X 4 5 H - 8 X M a x
A T A / 1 3 3 S u p p o r
A T A / 1 3 3 S u p p o r
This motherboard supports ATA66,
IDE bus is 16-bit, which means every transfer is two bytes. As the hard drive industry introduces faster and higher capacity hard drives,
the current Ultra ATA/100 interface causes a data bottleneck between the drive and the host computer. To avoid this problem, hard disk
manufactures have introduced the new Ultra ATA-133 interface technology.
percent increase in interface speed with transfer rate of 133MB/s. ATA/133 performance is ideal for new operating systems, such as
Window XP, that demand more storage space and faster data transfer rates from more responsive computing experiences.
To make good use of this new technology and enjoy its best performance, we recommend you to pair your system with a hard disk
equipped with ATA/133 technology so that your system's need for speed on this motherboard can be satisfied.
Mode Clock Period
PIO mode 0 30ns
PIO mode 1 30ns
PIO mode 2 30ns
PIO mode 3 30ns
PIO mode 4 30ns
DMA mode 0 30ns
DMA mode 1 30ns
DMA mode 2 30ns
ATA 66 30ns
ATA 100 20ns
ATA 133 15ns
t e d
t e d
ATA100 or ATA133 IDE devices. Following table lists the transfer rate of IDE PIO and DMA modes. The
Clock Count Cycle Time
20 600ns
13 383ns
8 240ns
6 180ns
4 120ns
16 480ns
5 150ns
4 120ns
2 60ns
2 40ns
2 30ns
Compared to traditional ATA/100, ATA/133 has up to 33
Data Transfer Rate
(1/600ns) x 2byte = 3.3MB/s
(1/383ns) x 2byte = 5.2MB/s
(1/240ns) x 2byte = 8.3MB/s
(1/180ns) x 2byte = 11.1MB/s
(1/120ns) x 2byte = 16.6MB/s
(1/480ns) x 2byte = 4.16MB/s
(1/150ns) x 2byte = 13.3MB/s
(1/120ns) x 2byte = 16.6MB/s
(1/60ns) x 2byte x2 = 66MB/s
(1/40ns) x 2byte x2 = 100MB/s
(1/30ns) x 2byte x2= 133MB/s
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O n l i n e M a n u a l
O n l i n e M a n u a l