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Thread: IDE DVD burner seen as SCSI and sloooooowww...




  1. #1
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    Default IDE DVD burner seen as SCSI and sloooooowww...

    I connected my Benq DW1655 CD/DVD burner to the IDE connector on my GA-EP35C-DS3R motherboard. In Windows Device Manager (Vista Home Premium 64bit) it shows up as a SCSI device.
    So far I have found info on the internet that this might have something to do with the JMicron chipset, and that it is nothing to worry about. That's fine, but..... it takes my DVD drive about 40 minutes to rip a DVD movie to hard disk! The same drive was previously installed on my old computer and there it read about 4 times faster!
    What can I do to solve this problem? Some say I should disable the JMicron controller, but others say that I need this controller to keep my RAID1 array working. My OS and my data files are on this RAID1 array and I do not want to risk losing them.
    I'm curious if anyone can shed a little light on this issue.
    Last edited by Jamie74; 09-15-2008 at 04:16 PM.

  2. #2
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    Default Re: IDE DVD burner seen as SCSI and sloooooowww...

    I found some info on other forums, but before I try them I thought I'd ask the specialists first...

    Option 1
    I have had this problem on 4 machines that I built using Windows Vista, based on Gigabyte motherboards (1 GA-P35C-DS3R, 3 GA-P35-DS3R.) The problem on my machines turned out to be a bad driver written by a company named JMicron (jmicron.com) and supplied with the motherboards by Gigabyte. I do not know if the bad JMicron driver ships with other Gigabyte motherboards as well, but I suspect so. It is possible that JMicron supplies drivers to other motherboard manufacturers. I don’t know what the effect of this driver is on Windows XP systems.<o:p></o:p>
    <o:p> </o:p>
    The Symptoms:<o:p></o:p>
    1) Inserting a blank CDR (or CDRW) or DVDR (or DVD +/- RW) does not bring up AutoPlay dialog.<o:p></o:p>
    2) Attempting to use the disk in windows explorer generates the error “Windows cannot read the disc in drive X. Make sure that the disc uses a format that Windows recognizes. If the disc is unformatted, you need to format it before using it."<o:p></o:p>
    3) In Device Manager, under DVD/CD-ROM drives, the CD/DVD device says it is “SCSI”, even though it is not a SCSI device. It should say “ATA”.<o:p></o:p>
    4) In Device Manager under Storage Controllers there is a device named “Gigabyte GBB36X Controller.”<o:p></o:p>
    <o:p> </o:p>
    The Issue:<o:p></o:p>
    JMicron supplied a device driver to Gigabyte that has something to do with support for PATA drives. They based it off a SCSI device driver, but failed to fully re-write it for PATA. The device driver reports to windows that the device is a SCSI device, and hands other bad data to Vista. Because of the bad data supplied by the faulty device driver, Vista fails to identify that there are valid CD/DVD PATA device(s).<o:p></o:p>
    <o:p> </o:p>
    The Solution:<o:p></o:p>
    Go to Control Panel/Device Manager. Click on “Storage controllers”. Double-click on the “Gigabyte GBB36X Controller.” Select “Roll Back Driver”, and Yes/OK any dialogs asking to confirm. Afterwards the “Gigabyte GBB36X Controller” will be gone. Check under DVD/CD-Rom drives. The device(s) should now show up as ATA, not SCSI. The device should now work properly.<o:p></o:p>
    <o:p> </o:p>
    Note: On two machines I did not reboot after doing this and subsequently had a blue-screen crash (after which everything was fine.) On the other two machines I did a reboot after rolling back the device and had no crash.<o:p></o:p>
    <o:p> </o:p>
    Microsoft is aware of the issue and is working with Gigabyte to correct the problem.
    <o:p>Option 2</o:p>
    1. Go to "device manager"<o:p></o:p>
    2. Expand the "storage controllers" node<o:p></o:p>
    3. Right click on "JMicron JMB36x" device and select "update driver software"<o:p></o:p>
    4. Select "browse my computer for driver software"<o:p></o:p>
    5. Select "let me pick from a list..."
    6. Select "Standard Dual Channel PCI IDE Controller"<o:p></o:p>
    7. Commit the changes and restart your Vista<o:p></o:p>
    8. Voila!<o:p></o:p>
    <o:p>Option 3</o:p>
    Uninstall (in control panel-system-device manager, right click on dv drive, 'uninstall') and (turn it off) completely, physically, unhook the burner. Then hook it all up again (restart, turn it off, plug in the cables, restart). Vista should have no problem finding the right driver.
    <o:p> Any thoughts, anyone?</o:p>
    Last edited by Jamie74; 09-15-2008 at 04:22 PM. Reason: added another option

  3. #3
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    Default Re: IDE DVD burner seen as SCSI and sloooooowww...

    Option 3 sounds best(Now that you edited 2 and added 3. BACKUP First though

    In option 3 you would not need to worry about backing up data. And I woudl do it in safe mode, so vista does not install the same driver. Then choose update thru the internet

    But what board do you have, and where do you have your RAID installed? If it is on the Purple ports then ok. But if it is on the Yellow ports then you have no worries if your IDE is indeed controlled by The GA/J.Micron Chip

    Do you have the intel chipset drivers installed? I ask because I have my IDE cd/dvd drives plugged in on IDE Cable and my OS in RAID 0 on my Purple ports and my IDE drives are controlled by the Microsoft drivers shown in device manager

    Last edited by Lsdmeasap; 09-15-2008 at 04:30 PM.

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    Default Re: IDE DVD burner seen as SCSI and sloooooowww...

    Board is GA-EP35C-DS3R.
    I have two Samsung Spinpoint 640GB SATA harddisks connected to the first 2 YELLOW SATA-connectors on the board. During the first startup (before I installed Vista) I pressed CTRL-I and configured them as RAID1. I must admit that I have no idea what chipset was involved. Next, I created 2 partitions on the RAID1 array during the Vista install.

    Does this change your advice? Also, did you get a chance to read option 3 (I added it later)?

  5. #5
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    Default Re: IDE DVD burner seen as SCSI and sloooooowww...

    OK, well then most of what you mentioned should not apply to you, as you installed your RAID onto the Intel controller (Yellow Ports - ICH9R Driver) Not GA/J.Micron (GBB36X-Driver), so you should not have installed the Gigabyte/J.Micron driver at all anyway. It is for the purple ports, and would not work with the yellow ones.

    So Yes, I would still choose option 3. Just wanted to let you know that your issue is not the same as the above quoted one about the Gigabyte/J.Micron driver

    3 will get you the right one, but like I said do it in Safe Mode. Also choose to Delete the driver as you uninstall if it asks
    Last edited by Lsdmeasap; 09-15-2008 at 04:38 PM.

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    Default Re: IDE DVD burner seen as SCSI and sloooooowww...

    Thanks a lot. Again! I will try this when I'm back behind my own system tonight.

    After installing Vista, I installed the drivers from the CD that came with my board. Should I uninstall the JMicron driver if I don't use it? If so, where and how?
    And my final question (for now...): could this have anything to do with any RAID/AHCI/IDE settings in BIOS?
    Last edited by Jamie74; 09-15-2008 at 04:40 PM.

  7. #7
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    Default Re: IDE DVD burner seen as SCSI and sloooooowww...

    Well it could possibly. Post a image of your settings if you would like me to see them first. The Purple Port (Gigabyte/J.Micron) settings are in the middle of the Integrated Peripherals Page of the BIOS, and the Intel Yellow ones are at the top of that page.

    You would want the Intel Top ones set like so >>>
    SATA RAID/AHCI Mode ......................RAID
    Sata port0-3Native Mode..................................Disabled

    And the Gigabyte Middle ones set like so >>>
    Onboard SATA/IDE Ctrl Mode ................. Enabled
    Onboard SATACtrl Mode ............................IDE (Unless you want to have RAID or AHCI disks ALSO on the purple SATA ports, then AHCI or RAID Here as well, Physical IDE Devices will always be PATA(IDE) no matter what and will function as long as the setting above is set to Enabled. Disabled they will not function)

    I do see The Gigabyte Controller does indeed control the IDE as far as settings in the BIOS, but for what we are discussing here it is irrelevant as far as drivers are concerned anyway. The only GA/J.Micron driver there is would be for AHCI or RAID on that chip, thus your or your system would not have ever installed it.

  8. #8
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    Default Re: IDE DVD burner seen as SCSI and sloooooowww...

    Quote Originally Posted by Lsdmeasap View Post
    Not GA/J.Micron (GBB36X-Driver), so you should not have installed the Gigabyte/J.Micron driver at all anyway.
    Thanks for the advice. But how do I get rid of the GBB36X driver if I do not need it?
    Yesterday evening I tried something but that appeared to be rather stupid... I uninstalled the GBB36X driver from Device Control. After that, many things happened in the list of Device Control: my "SCSI" DVD-player disappeared and an ATA DVD player appeared, there was a new HD sound device added (???), they shifted a bit from the "unknown devices" category to their correct categories, so all looked quite nice... and then all of a sudden I got this wonderful BSOD after which all I could do was use Windows System Recovery to go back to where I was before I started this all.
    It seems like the GBB36X driver is doing more than just control the purple SATA ports, and for some reason my system really likes to keep it. But if in theory I do not need it, then how do I get rid of it?

  9. #9
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    Default Re: IDE DVD burner seen as SCSI and sloooooowww...

    You should have used Option 3, like I said. you asked and that would have been the way to do it.

    As for how you installed that? Maybe you installed it from the express install off the Motherboard CD?

    Ya, it only controls the purple ports. If you do not use them it does not need to be installed at all.

    As for you already having it there, and trying to remove it? I am not sure how you could, or if you should? HAHA

    I can say a clean install will fix you right up, then if you install drivers off the motherboard CD, do it manually one by one only the ones you NEED. Neither RAID driver/program off the CD is needed once windows is installed, so if you see one uncheck it or do not install it.

    Now back to the issue, did you ever do option 3 yet?

  10. #10
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    Default Re: IDE DVD burner seen as SCSI and sloooooowww...

    You are so right, of course.
    You see, it all started with my SCSI/IDE mix-up and then I read that I shouldn't even have installed that stupid GBB36X driver anyway. I figured that I would try option 3 AND remove that awful driver. Unfortunately, I did the driver removal first. After I finally got my system back up and running, it was already past midnight and too late to try option 3.
    I think I'll do a complete re-install tonight though. Hope that will solve this once and for all. Sigh, weren't computers supposed to save us work...?

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