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Blindmelonball
193 Posts
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2389
December 27th, 2004 01:00
DMA Problem?
I've got a DMA problem, I think.
My machine is a Dell Dimension 4550, 2.4mHz, 1gb ram, running XPHome,
SP1. It came with one hard drive on the primary IDE channel, and a
LiteOn DVD-ROM LTD163 as a master and an HL-DT-ST CD-RW GCE-8400B as a
slave on the secondary IDE channel. (Many months ago, I added a slave
drive to the primary IDE, and all is fine with it.)
SP1. It came with one hard drive on the primary IDE channel, and a
LiteOn DVD-ROM LTD163 as a master and an HL-DT-ST CD-RW GCE-8400B as a
slave on the secondary IDE channel. (Many months ago, I added a slave
drive to the primary IDE, and all is fine with it.)
Here's the problem:
I recently bought a Plextor 708A DVD/-+RW burner, and swapped it out
with the HL-CD burner. (I left the LiteOn DVD-ROM as master, and
configured the Plextor DVD burner as slave.) It's a cable select
system, and both DVD drives are jumpered cable select.
with the HL-CD burner. (I left the LiteOn DVD-ROM as master, and
configured the Plextor DVD burner as slave.) It's a cable select
system, and both DVD drives are jumpered cable select.
The Plextor works fine, but now I can't play CDs or DVDs on the LiteOn.
If I try an audio cd, cda or mp3, the audio is warbled for the first 10
sedonds of each track, and then returns to normal. If I try to play a
DVD movie, the audio is warbled the entire time, and the video plays
about 2x speed, even though set for normal speed. I've done some
googling and newsgroups research on this, and suspect maybe there is a
DMA configuration problem.
If I try an audio cd, cda or mp3, the audio is warbled for the first 10
sedonds of each track, and then returns to normal. If I try to play a
DVD movie, the audio is warbled the entire time, and the video plays
about 2x speed, even though set for normal speed. I've done some
googling and newsgroups research on this, and suspect maybe there is a
DMA configuration problem.
Here's my current DMA settings per the
Device Manager/IDE ATA/ATAPI controllers/Secondary IDE
Channel/Properties/Advanced Settings:
Device Manager/IDE ATA/ATAPI controllers/Secondary IDE
Channel/Properties/Advanced Settings:
Primary Channel:
Device 0 (Master HD)
Transfer Mode: DMA if available
Current Transfer Mode: UDMA Mode 5
Device 1 (Slave HD)
Transfer Mode: DMA if available
Current Transfer Mode: UDMA Mode 5
Secondary Channel:
Device 0 (DVD-ROM)
Transfer Mode: DMA if available
Current Transfer Mode: PIO Mode
Device 1 (DVD/-+RW)
Transfer Mode: DMA if available
Current Transfer Mode: UDMA Mode 2
I can't find how to change the setting from PIO to DMA for the DVD-ROM.
Perhaps disable the secondary IDE controller, reboot, enable the
controller, and reboot?
Perhaps disable the secondary IDE controller, reboot, enable the
controller, and reboot?
The most inclusive discussion I've found on XP IDE controllers reverting
back to PIO is here:
back to PIO is here:
I've also read that a DMA setting can go back to PIO if the drive has
been reporting read errors, but mine hasn't.
been reporting read errors, but mine hasn't.
I'm about ready to try the registry fix, but before I do, any other
ideas?
ideas?
Sincerely,
BMB
BMB
94
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Posted December 27th, 2004 13:00
Hi BMB,
Jim is currently off-line,
If you do decide to use the old Master / Slave jumper settings, a Cable Select cable will work just fine. A DVD/RW tends to like the Master position, you can still use Cable Select, simply move the plextor to the Top Bay, "end" connection.
You may need to enter the BIOS and verify that the IDE channel is set to Auto or On and that both Drive 0 & Drive 1 are on as well.
I have additional information on DMA in Section 15, articles 14 & 13 of the CD/RW link in my post.
Happy Holidays!
God, grant me the senility to forget the people I never liked anyway,
the good fortune to run into the ones I do and the eyesight to tell the
difference.
CD/RW Link
94
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Posted December 27th, 2004 13:00
@JimmyMac43 wrote:
I had this situation happen to a DVD rom due to errors trying to read a bad DVD. It converted to PIO mode and had the same sound and play problem you are reporting. I tried several things and finally solved may problem by uninstalling the DVD rom in the device manager, removed the rom and replaced it with another one that I had. It was installed in DMA mode and worked fine. Then I uninstalled it in the device manager and replaced it with the original DVD rom and it came up in DMA and everything was fine. Don't know if this will work for you or why you converted to PIO mode but this worked for me. You might use your CD rom that the plextor replaced to see if it works for you. I can't remember everything I tried, but physically removing the problem rom, replacing it and then putting it back was what I ended up doing.
Jim
Hi, Jim,
I suspect that this may have indeed been caused by the DVD-ROM trying to read a bad DVD or CD, also. I am going to open the machine and try what you suggest. When I do solve this, I may also move the DVD-ROM to the slave position and the DVD-+/RW to the master position. Can I ask, do you have your burner in the master position and ROM in the slave position? I've read that this is the better way to set up a ROM and a burner on the same channel.
Also, did you jumper your drives as cable select, or master and slave?
One more question...:smileyhappy: If I decide to jumper master and slave, can I use the cable select cable, or must I use a non-cable select cable?
Thanks,
BMB
94
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Posted December 28th, 2004 04:00
I posted my question to microsoft.public.windowsxp.hardware, and microsoft.public.windowsxp.general. The thread is here:http://tinyurl.com/4nzz2Malke provided the answer in this link:Briefly, I re-enabled DMA by using the registry editor to delete the MasterIdDataChecksum key of the secondary IDE channel, and rebooted. It worked like a charm.BMB94
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Posted December 28th, 2004 11:00
Hi BMB,
One of our Regulars, Osprey ~ John sent me that same link a couple of months ago and I placed it in Section 6-5 of the CD/RW link. I totally forgot about it and will move it to Section 15 with the other articles on DMA. Glad to hear it helped and also for the feedback, good work!!
Happy Holidays!
God, grant me the senility to forget the people I never liked anyway,
the good fortune to run into the ones I do and the eyesight to tell the
difference.
CD/RW Link
JimmyMac43
50 Posts
94
0
Posted December 27th, 2004 12:00
I had this situation happen to a DVD rom due to errors trying to read a bad DVD. It converted to PIO mode and had the same sound and play problem you are reporting. I tried several things and finally solved may problem by uninstalling the DVD rom in the device manager, removed the rom and replaced it with another one that I had. It was installed in DMA mode and worked fine. Then I uninstalled it in the device manager and replaced it with the original DVD rom and it came up in DMA and everything was fine. Don't know if this will work for you or why you converted to PIO mode but this worked for me. You might use your CD rom that the plextor replaced to see if it works for you. I can't remember everything I tried, but physically removing the problem rom, replacing it and then putting it back was what I ended up doing.
Jim