4 vs ATA/33 mode between CD players [two different things] [primary slave]

Q: I noticed that my Pioneer 16x DVD drive performs very bad.
My TDK CDRW 12/10/32x much better performance when reading CDs only explorer.

I also noticed that when I started, the table appears, displaying information system contains about the connection for these devices. It looks like this:

Primary Master: ATA/100 u003c-this is a hard disk
: u003c ATA/33-this is the DVD
Secondary Master: Mode4 u003c-this is the CDRW
Secondary Slave: u003c ATA/33-this is a hard disk

Shouldnt both drives using ATA/33 or Mode4? Is this the reason there is such a performance and reading the difference between the two? The pioneer is hard, very hot, and just read slowly. Is there a way to replace Mode4 ATA/33? Any help would be appreciated.


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Re:Shiva112 – Try setting back your MB to AGP2X & enable DMA. That's if your are
running AGP4X? I had 2 do this B4 my DVD would play movies.

guy – I'll try jumping Plex & run benchmarks…will post results here.


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Re:Yes it works. Without the jumper it boots up showing PIO 4. With the jumper it boots up showing ATA33. As far as the difference I couldn't tell you. I haven't done any tests.

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Re:see right now my CDR is Mode 4 and it works fine.
The DVD drive doesn't work when DMA is enabled…it crashes all DVD programs.
Does this mean the drive is bad?

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Re:guy – I've read about this in other threads, is this really fact or myth? Does the drive show "ATA33" at post & work any different?

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Re:Here is how to change your CDRW PIO 4 to ATA33.

On the back of the drive there are 2 pins on the far left looking at it from the back. They might be labeled 'Reserved'. Put a jumper on those pins and your drive is now ATA33.


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Re:when I enable DMA mode my DVD programs crash when trying to playback
if I don't have it, the DVDs play like crap.

Does this mean my drive is bad?


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Re:really?
damn that sucks.

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Re:Mode4 is programmed I/O mode 4, that uses a fair bit of CPU time when doing I/O operations. You want your DVD ROM in DMA (ATA) mode. DVDs will play horridly if you don't. A DVD ROM is suppose to be in ATA33 mode…I have the 10x Pioneer drive. Sounds like their might be something wrong with your drive…

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