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udma vs uata? 1

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estesflyer

Programmer
Dec 19, 2000
284
US
what is the difference? will both cables work w/ eachother? or are they completely different?

Will a udma/100 or an ultra ata/100 cable work with a udma/66 drive, or an ultra ata/66 drive?

also, anyone have any personal choice of windows operating systems for stability and hardware support?

TIA


- Rusty
 
UDMA and Ultra ATA are essentially the same thing. For UDMA/Ultra ATA 66 drive a standard IDE/EIDE cable should work fine. For a UDMA (Mode 5)/ATA 100 drive you need an 80 conductor cable in order to use the ATA 100/UDMA Mode 5 Configuration. Without it your drive will use UDMA (mode4)/ATA 66. Windows 98 Supports both Modes. Windows 2000 you must do a few things to support ATA66/100. First you must edit the registry to enable UDMA 66 support.
Enable UMDA 66 support (Off by default on Win2K Pro):
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Class\{4D36E96A-E325-11CE-BFC1-08002BE10318}\0000]
"EnableUDMA66"=dword:00000001


ATA 100 in Windows 2000 you must download the ATA100 Support patch from MS.
If you are running ATA 100 Drives you will need to down load the Windows 2000 ATA100 Support driver. Get that at:

Hope this helps. James Collins
Computer Hardware Engineer
A+, MCP

email: butchrecon@skyenet.net
 
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