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Faster disk on slower IDE connector

myson
myson asked
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Can I connect a UltraATA/100 harddisk on a UltraDMA/33 motherboard IDE connector?

Thanks in advance,
MyS
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Commented:
Yes. It will operate at the 33MB/s speed as a max though. IF you wish to take advantage of it's rated speed, you'll need an add-on ATA-100 PCI card. Promise makes the best of these, IMO.

Commented:
Not only can you do it, the performance loss isn't really all that much depending on the drive.  Unless it's a big drive with a high data density, sustained transfer rate probably is right around 30-35MB per second anyway.  I moved an ATA100 IBM drive from an ATA33 motherboard to an ATA100 one and the sustained rate benchmark went from 31.5MB/sec to 38MB/sec.  (The missing 1.5MB/sec was likely overhead housekeeping data that wasn't counted by the benchmarker) The different is no real big deal at those speeds.

regards,
magarity

Commented:
And by using the 80 conductor ATA-100 cable, you'll speed things up a bit, even on a UDMA33 connection.

Author

Commented:
Thanks, jlauster.

Commented:
Glad we could help, and thank you for the A grade.

John

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