Can Ata-100 supported motherboard works with Ata-133 HD normally

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I should answer my question by myself. The answer appeared very simple, get from practice. My asus p5 series mobo support officially udma/ide 100,66,33 (if looked attentively in mb manual) but worked a lot of years with hd udma133, so answer is obvious that such connection is compatible.
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arttss

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Just the numbers of wires means. Nothing more?
So theoretically just the speed to hd would be 100 mbs, but no previous 133 mbs?
What about limitation on maximum hd size -- something about 150 gb? As I read on the internet.
 
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das_stig

das_stig

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ATA-100 or ATA-133 is a limitation of the chipset, they use the same 80 wire cable.

A chipset that supports ATA-100 will run an ATA-133 at ATA-100 speeds.

A chipset that supports ATA-133 will run an ATA-100 drive at ATA-100 speeds.

XP had limitations on drive sizes, but Windows 7 capacities increased massively and should not be an issue on a machine of this age.
 
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arttss

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As far as I understood except slower speed no inconvenience, no changing of the settings? That is point that my hd has 80 gb and is under windows xp so I would like just reinstall xp after replacement of mb on my pc, and extend the size of hd potentially so I wonder about any limitation? There is also such moment that my hd burned along my mb but removing the one tvs diode made it alive again. And it launched and even some files copied. But anyway I need find proper replacement for tvs and nobody guarantee the stability of hd in the future. But if less ata speed would not influence hd work it should be fine.
 
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arttss

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Some informal reference is not far from here http://www.tomshardware.co.uk/forum/32947-32-supports-ata100-work . It makes things more complicated. It said that hd should be tuned for less ata-speed by some software. Which software, and how to do? So it is not automatic levering/uptuning? There was also said I need to use cable with less mb ata-speed but not higherspeed of ata cable for hd that I have for instance. Relating that moment I do not understand should the hd would not work in the whole or work drastically bad? http://www.tomshardware.co.uk/forum/96542-30-help-controller-card this resource tells about some IRQ redefinition on mb ata-controller.
 
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arttss

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So could you suggest which kind of software I need to configure ATA-133 samsung drive for work with ATA-100 mb? Should I configure my hd before attaching new mb, from another pc system. Then if I would use mb ata-100 should I use exactly ata-100 cable or exactly original ata-100 from given mb model?
 
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arttss

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I should answer my question by myself. The answer appeared very simple, get from practice. My asus p5 series mobo support officially udma/ide 100,66,33 (if looked attentively in mb manual) but worked a lot of years with hd udma133, so answer is obvious that such connection is compatible.
 
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