Installing TDK 16x10x40 CDRW on my system (A7V) was...wierd. Here's my story:
1. The Auto setting in Bios detected the TDK CDRW, but disabled DMA support. When I checked the DMA box in Win98 Device Manager it (the checkmark) would disappear after a reboot.
2. Next I manually set the drive type as CD and set the DMA to mode 2 in Bios. Bios and Win98 do not detect it the drive.
3. I then tried using DMA mode 1 - same result.
4. Finally, when I set it to Mode 0, where it was detected in Bios and Windows. I was able to check the DMA box in properties without it disappearing on reboot.
What the heck is DMA mode 0?
I have the CDRW on the secondary IDE channel by itself as a master. The primary ide connector has a hard drive and CD as master/slave. My 7200 rpm ata-100 Maxtor is connected to the Promise ATA-100 controller. BTW, when I put the CDRW on the ATA-100 connector it also did not assign a dma mode (the hard drive is detected and assigned mode 5).
Any ideas what is going on here? My drivers (4-1) and bios (1.007) are all latest revisions. I flashed the firmware on the CD to the latest version as well. The burner functions (created an audio cd on cd-r media), but I wonder if my performance is maximized. I have never before owned a CDRW or done any benchmarks so I have no basis for making a judgement on speed.
1. The Auto setting in Bios detected the TDK CDRW, but disabled DMA support. When I checked the DMA box in Win98 Device Manager it (the checkmark) would disappear after a reboot.
2. Next I manually set the drive type as CD and set the DMA to mode 2 in Bios. Bios and Win98 do not detect it the drive.
3. I then tried using DMA mode 1 - same result.
4. Finally, when I set it to Mode 0, where it was detected in Bios and Windows. I was able to check the DMA box in properties without it disappearing on reboot.
What the heck is DMA mode 0?
I have the CDRW on the secondary IDE channel by itself as a master. The primary ide connector has a hard drive and CD as master/slave. My 7200 rpm ata-100 Maxtor is connected to the Promise ATA-100 controller. BTW, when I put the CDRW on the ATA-100 connector it also did not assign a dma mode (the hard drive is detected and assigned mode 5).
Any ideas what is going on here? My drivers (4-1) and bios (1.007) are all latest revisions. I flashed the firmware on the CD to the latest version as well. The burner functions (created an audio cd on cd-r media), but I wonder if my performance is maximized. I have never before owned a CDRW or done any benchmarks so I have no basis for making a judgement on speed.
I'd like to know too if you find out what it does/how fast it is.
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