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  1. 06-22-2003 07:46 PM #1
    NDD
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    UDMA problem in WinXP

    Something I learned from the Net when my TEAC CDR-W512EB suddenly wouldn't become anything but "PIO only" in Device Manager.

    1. Regedit
    2. Locate "HKEY_LOCAL_MACHINE\SYSTEMS\
    CurrentControlSet\Control\Class\{4D36E96A-E325-11CE-BFC1-08002BE10318}"
    3. Select the rellevant IDE channel
    4. Change "MasterDeviceTimingModeAllowed" Hexadecimal value to "ffffffff" (or Decimal value to "4294967295")
    5. Go to the rellevant IDE channel in Device Manager and switch Transfer Mode under the "Advanced Settings" tab back and forth to "DMA if available"
    6. DMA mode should now appear active


    Worth sticky, BPB ?
    Last edited by ND; 06-22-2003 at 07:48 PM.
    And I will strike down upon thee with great vengeance and furious anger those who attempt to poison and destroy my brothers
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  2. 06-22-2003 09:59 PM #2
    BipolarBill
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    Re: UDMA problem in WinXP

    Originally posted by ND
    Worth sticky, BPB ?
    Stickworthy for some! Now tell me how to enable DMA on the slave drive on the nForce2 chipset in Win98.
    MS MCP, MCSE
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  3. 06-23-2003 11:14 AM #3
    Swordfish
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    Bill have you tried that old inf (Mshdc.inf) trick...i can't remember but it was some problem with 98 not updatin the registry properly.

    check below....

    http://www.windows-help.net/windows98/tune-35.shtml
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  4. 06-23-2003 12:01 PM #4
    BipolarBill
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    Yep - no go. It seems to be a bug in the nForce2 or the "Standard Dual-channel IDE Controller" in Win98.
    MS MCP, MCSE
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  5. 06-23-2003 10:24 PM #5
    NDD
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    I believe it's the chipset. I keep seeing more threads about nForce2 and Win98 IDE problems. However, nForce in some cases was suffering from a similar problem and they were fixing it with BIOS updates.
    And I will strike down upon thee with great vengeance and furious anger those who attempt to poison and destroy my brothers
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  6. 06-24-2003 08:34 PM #6
    gjimene2
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    also make sure you're not using a 40 conductor ribbon cable but an 80 conductor ribbon cable

    This also applies to some errors that an nforce2 based motherboard might have with the 40 conductor cable.

    More information can be found here
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  7. 06-24-2003 11:08 PM #7
    Swordfish
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    gjimene2, a junior admin....nice when did that forum start?

    You know somethin that forum it looks pretty similar to those afrotech forums...i remember someguy known as embj at afrotech... a very funny forum.
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  8. 06-24-2003 11:20 PM #8
    gjimene2
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    same guy, I was makiro there.

    the forums are closed, lightning struck the pc

    those forums are new, just opened up a couple of months ago, and where in it's beta days. I'm sure it's there to stay for good this time.

    it's from the same embj that goes here
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  9. 06-24-2003 11:34 PM #9
    BipolarBill
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    Geez - what a clown!

    Yeah- using 80-wire jobbie. Still no go. Scroo Win98!
    MS MCP, MCSE
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  10. 06-25-2003 12:00 AM #10
    gjimene2
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    hehe, bring in the clowns,,,,,,,,,
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