Burning DVD's and CD's, buffer drops to Zero, cause?

theanimala

Senior member
May 10, 2000
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I just got my new 2.66ghz 4550 with the dell installed DVD+RW. In this system, I installed my old 48x CDRW (cable select slave) and also my old hard drive (30gb IBM 7200HD) also set to cable select slave on the HD IDE cable.

I tried copying a CD earlier today (data, not music) from the DVDR to my CDR and the buffer ran immediately to 0. The buffer underrun kicked in and my disc took around 10 minutes to right. It was just a test so I cancelled it before.

I now just tried copying around 4GB of data from my second (slave) HD to the DVD drive. The buffer also ran right down do zero and it is taking around 40 minutes. Not sure if the disc will be readable or not.

As mentioned, I just got this system today and I have not upgraded the firmware, but I assume my problem does not stem from that as it is affecting both my CDRW and DVDRW. Does anyone have any recommendations on what could be wrong?
 

fearQuestion

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Apr 13, 2003
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buffer errors usually have to do w/ lack of memory right? i would close all the background programs and look into upgrading your RAM.
 

godmare

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Sep 25, 2002
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DMA is probably disabled. Check the settings in the BIOS and under IDE in the device manager.
 

theanimala

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May 10, 2000
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I have 512MB of PC2700 ram. All I have is IM, and one browser window open. Granted, there may be other stuff running in the background (you know Dell), but I would think I have more then enough memory to handle it...
 

theanimala

Senior member
May 10, 2000
330
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Looks like DMA is enabled. I am looking under device manager in Win XP, and both the primary and secondart IDE channelss show DMA if Available for both Device 0 and 1. Devices zero does say Ultra DMA Mode 2 for device 0, and PIO Mode for Device 1. These options are grayed out and I cannot change them. Does this sound correct?
 

godmare

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Sep 25, 2002
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Originally posted by: theanimala
Looks like DMA is enabled. I am looking under device manager in Win XP, and both the primary and secondart IDE channelss show DMA if Available for both Device 0 and 1. Devices zero does say Ultra DMA Mode 2 for device 0, and PIO Mode for Device 1. These options are grayed out and I cannot change them. Does this sound correct?

Let me make sure I have this correct:
Primary dev0: UDMA2, HDD
Primary dev1: PIO, what drive?
Secondary dev0: DMA, what drive?
Secondary dev1: DMA, what drive?

Do you have the optical drives on the same IDE channel?


 

theanimala

Senior member
May 10, 2000
330
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81
Originally posted by: godmare
Originally posted by: theanimala
Looks like DMA is enabled. I am looking under device manager in Win XP, and both the primary and secondart IDE channelss show DMA if Available for both Device 0 and 1. Devices zero does say Ultra DMA Mode 2 for device 0, and PIO Mode for Device 1. These options are grayed out and I cannot change them. Does this sound correct?

Let me make sure I have this correct:
Primary dev0: UDMA2, HDD
Primary dev1: PIO, what drive?
Secondary dev0: DMA, what drive?
Secondary dev1: DMA, what drive?

Do you have the optical drives on the same IDE channel?

Primary dev0: UDMA2, HDD from system
Primary dev1: PIO, second HDD, from old system (IBM 30gb 7200, ata100)
Secondary dev0: DMA, DVD+RW
Secondard dev1: DMA if available, using PIO mode, 48x CDRW (Lite-on)

Both HDD's are on the primarty channel and both Burners are on their same IDE channel. Should I change this?

So I am telling Win XP to use DMA if available, but for some reason it is selecting PIO mode for the second devices. How to I make it use DMA?
 

theanimala

Senior member
May 10, 2000
330
1
81
Guys, thanks for helping me out and pointing me in the right direction. I had to go into the bios and activate those two devices that I added, XP came up and put them in DMA mode. Burning like a champ now. Thanks!
 

godmare

Diamond Member
Sep 25, 2002
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Originally posted by: theanimala
Originally posted by: godmare
Originally posted by: theanimala
Looks like DMA is enabled. I am looking under device manager in Win XP, and both the primary and secondart IDE channelss show DMA if Available for both Device 0 and 1. Devices zero does say Ultra DMA Mode 2 for device 0, and PIO Mode for Device 1. These options are grayed out and I cannot change them. Does this sound correct?

Let me make sure I have this correct:
Primary dev0: UDMA2, HDD
Primary dev1: PIO, what drive?
Secondary dev0: DMA, what drive?
Secondary dev1: DMA, what drive?

Do you have the optical drives on the same IDE channel?

Primary dev0: UDMA2, HDD from system
Primary dev1: PIO, second HDD, from old system (IBM 30gb 7200, ata100)
Secondary dev0: DMA, DVD+RW
Secondard dev1: DMA if available, using PIO mode, 48x CDRW (Lite-on)

Both HDD's are on the primarty channel and both Burners are on their same IDE channel. Should I change this?

So I am telling Win XP to use DMA if available, but for some reason it is selecting PIO mode for the second devices. How to I make it use DMA?

Afaik, it will use dma if the drive handles it. Looks like your 48x doesn't...
Definitely leave the HDDs on the same channel as well as the opticals; I would try disconnecting and uninstalling the slower PIO cdrw drive and burning with the dvdr and see if you get the same problem.
The 7200rpm HDD is PIO?
Try disconnecting and uninstalling (from dev mgr) the slow HDD next if jerking the slowcdrw doesn't work.