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Thread: DVD drive keeps spinning on and off




  1. #11
    Join Date
    Apr 2008
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    Default Re: DVD drive keeps spinning on and off

    Did you consider (as per one of my previous posts) installing the GB SATA II Driver (ie aka Jmicron controller, possibly a JMicron/Products) or the the Jmicron driver (essentially the same as the GB package but probably newer)
    Driver

    You need to double check though that your IDE interface is in connecton with a Jmicron Controller.

    You'll find then that the DVD drive gets listed differently in device manager. If however it cures the specific problem you have is another matter. It may be worth a try though.

    Oh and are you using an 80 conductor ide cable???? (throughput looks good so I'm assuming you probably are), but because of the type of "fault" you are experiencing, a 40 conductor cable is a factor that could influence things (negatively).
    Last edited by VorLonUK; 07-01-2009 at 09:43 PM.
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  2. #12
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    Default Re: DVD drive keeps spinning on and off

    I'm 100% sure the drive is on either an 80 wire IDE or a SATA connector, otherwise he'd be limited to DMA Mode 2. Although an 80 wire won't increase bandwidth, the extra 40 wires are insulation to prevent cross-talk. The drive will auto detect the cable type and be limited to DMA 2 and 12x burning on 40 wire cables.
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  3. #13
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    Apr 2008
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    Default Re: DVD drive keeps spinning on and off

    Quote Originally Posted by Psycho101 View Post
    I'm 100% sure the drive is on either an 80 wire IDE or a SATA connector, otherwise he'd be limited to DMA Mode 2. Although an 80 wire won't increase bandwidth, the extra 40 wires are insulation to prevent cross-talk. The drive will auto detect the cable type and be limited to DMA 2 and 12x burning on 40 wire cables.
    Actually the 40 extra wires aren't insulation, they are all at Ground potential to effectively "Screen" the data cables. Yes, they are there to stop crosstalk which effectively increases bandwidth - hence why they were introduced.
    Udma 4 aka UltraDma 66 was the first new protocol that required an 80 conductor cable, the result was a theoretical doubling of bandwidth to 66.7MB/s over the previous UltraDma 33 which was the max speed for a 40 conductor cable.


    So Yes, I was aware that Ultra 33/dma 2 was the considered max with a 40 conductor cable as I stated here:- http://forums.tweaktown.com/f69/dvd-...33/#post304967 :)
    I did however miss that the poster stated that the drive was running in DMA 4 mode in his recent post.
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  4. #14
    Join Date
    Nov 2008
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    15

    Default Re: DVD drive keeps spinning on and off

    I think that's the 80 pin cable I'm using. (The standard connector at the back of most drives, since it's not a SATA drive.)

    When I do a burn, the spinning is normal, and so was when I made this test. It never spun down except when it was finished. It's only when I copy data from the drive. I usually don't play DVDs on my computer, but on a very few occasions when I did, they do play fine.

    I forgot about the JMicron driver! But I will try to get another drive - maybe tomorrow - and swap it out for testing.

    Thanks for the input!
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