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13231
December 4th, 2003 19:00
Can't enable DMA...
I'm trying to enable DMA, but can't get it to work. I've tried going into Device Manager and setting all to "DMA if available", but after restarting, PIO is still in use. Then I tried setting to PIO, restarting, then setting to DMA and restarting again, but this also didn't work. I'm pretty sure they should all be able to use DMA. Any ideas what I could do?
I'm tempted to try the first set of advice in this article http://www.cdrlabs.com/phpBB/viewtopic.php?t=6645 but am a bit scared! Will it re-install the IDE channel automatically? Would I have to locate the drivers, because I have no idea where they are. Also, the main drive I wanted to change to DMA is the Primary hard drive which has the operating system on. Surely there must be another way?
I hope someone can help!
Thanks.
System is:
Dell Dimension XPS T600, Pentium 3, Windows XP Pro.
Primary IDE Master - IBM-DTLA-307030 Hard Drive
Primary IDE Slave - WDC WD1200JB-00CRA0 Hard Drive, newly installed, DMA is enabled already on this.
Secondary IDE Master - TOSHIBA DVD-ROM SD-M1212
Secondary IDE Slave - IOMEGA ZIP-250
LittleAdvice
1.1K Posts
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December 4th, 2003 22:00
sabbath180,
Go into the BIOS of your system and make sure that DMA is set there. If it is not it wont matter what you set the OS to it will kick it back down.
sabbath180
6 Posts
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December 4th, 2003 23:00
I just had a look in BIOS. The first 3 devices are set as follows:
Transfer Mode= [FPIO 4 / DMA 2] Ultra DMA= [Mode 2]
Whereas the ZIP drive is set like this:
Transfer Mode [FPIO 3 / DMA 1] and Ultra DMA [Disabled]
shesagordie
12 Elder
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46K Posts
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December 4th, 2003 23:00
sabbath180.
See if the following article about the DMA Mode for ATA Devices in Windows XP helps.
http://www.microsoft.com/whdc/hwdev/tech/storage/IDE-DMA.mspx
Bev.
marco27
159 Posts
0
December 5th, 2003 12:00
sabbath180,
you may want to try going to this site and download the utility to force the optical drives to DMA.
http://support.dell.com/filelib/download.aspx?FileID=63977&releaseid=r53986
This utility can be used to set secondary IDE CD-ROM devices back to a UDMA mode after the Operating System (WindowsXP) has set the device to PIO mode.
good luck!
Message Edited by marco27 on 12-05-2003 08:10 AM
sabbath180
6 Posts
0
December 5th, 2003 18:00
Thanks everyone for your replies.
marco27, I can't believe it but that program actually worked!! According to the device manager all four devices are now set to Ultra DMA Mode 2. Thanks a lot.
Woohoo!
Just out of interest, is there any downside to setting all to Ultra DMA 2? I wouldn't have thought there was as long as they work under those modes, which I am sure they do.
Message Edited by sabbath180 on 12-05-2003 02:46 PM
hhp_211
14 Posts
0
December 22nd, 2003 03:00
will that program work for windows ME?
I fixed mine a different way:
I found this @ http://www.videoguys.com/WinME_Tweaks.html
Enabling DMA enter the below info into the Registry:
HKEY_LOCAL_MACHINE\Enum\ESDI\
"DMACurrentlyUsed"=hex:01
Note: 01 enables DMA, 00 disables Save and reboot.
I also did this in
HKEY_LOCAL_MACHINE\Enum\SCSI\
It made it where I had the check boxes available and they were checked to enable DMA!!
marco27
159 Posts
0
December 22nd, 2003 06:00
i believe it will only work with winXP.