better cable gives worse speed?

I was using A7V motherboard, but now got a new A7V133 with the latest BIOS, and I used 80pin cables to connect my Plextor 16x and DVD (2 cables, CD-RW is Primary Master and DVD is Slavery Master). I used 40pin cables before and it seems it gave better speed! my plextor copies 250Mb in 3 minutes! and it should copy approximately 600Mb in 2 minutes!! Intallations seem to be way longer...what to do? go back to 40pin cable? I wonder why...
Thank, You, for help
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  1. I have same question with my SONY CDU5211 drive.
    It lsot some speed with 80 pin cable.
  2. Then use a 40 wire cable. What's the problem?

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  3. hehe.

    Your brain: PC
    You brain on drugs: Mac
  4. indeed

    if you ahve a problem, seperate the ata33, dma drvices on the slow 40 wire cable and the ata66/100 on the 80 wire one.

    i personally have 4 devices

    primary master: ata100 HDD
    primary slave: ata33 HDD
    secondary master: ata66 dvd
    secondary slave: dma burner

    all running on 80 wire cable and dont see any slowdowns or conflicts.

    Religious wars are 2 groups of people fighting over who has the best imaginary friend.
  5. o yeah... help for u...
    *ummm*

    check your bios, make sure that the drives are still being detected as what they are
    udma 5 = ata100
    udma 4 = ata66
    udma 2 = ata33
    dma = ata (16mb/sec)
    etc

    also check in your system configuration that DMA is enabled on all relivant drives.

    if that doesnt work, you may want to consider running the drive by itself on a cable

    Religious wars are 2 groups of people fighting over who has the best imaginary friend.
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