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ATA100 vs. UDMA100

R

reicherb

Platinum Member
I have an Asus A7V133 and the manual says it has 2 channels that are ATA100 and 2 channels that are UDMA100.

Whats the difference?

Thanks
 
i don't know, but i guess that udma is when the disk controller is running with a wider transfer bandwith, and the in the ole days, ata33 was when the ide bus was running 33mhz then 66mhz came along and now 100mhz, i don't know... but it's a valid guess anyhow... but that would meen that udma and ata100 doesn't have anything to do with eachother... don't know....
 
UDMA 100 (also known as UDMA 5) is the same thing as ATA 100.

If you have the RAID version of the board, you will have 2 RAID UDMA 100 channels and 2 regular UDMA 100 channels. If your board is not the RAID version it should just have 2 regular UDMA 100 channels.

On a side note, does anyone know if CDROM drives can function on the raid channels or is it just hard drives(which may or may not be in an actual RAID configuration)?
 
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