DOS ain't dead

Change UDMA mode on WD400BB drive (Users)

posted by Japheth , Germany (South), 07.01.2013, 06:07

> Thx for reply. I tested it and I wonder how can I get so incredible low
> speed with /dma, just 46kB/s



> time: 0:00:07,30 for 117760 sectors -> 8065 kB/sec

Hey, this is 8 MB/sec for standard INT 13h, not just 5 MB.

> CFG 63= 7: Multiword DMA modes supported: 0 1 2
> CFG 64= 3: Advanced PIO modes supported: 3 4
> CFG 53= 7: UDMA valid=1
> setting UDMA mode ... ok
> CFG 88= 13F: UDMA modes supported: 0 1 2 3 4 5, current 0

Obviously setting the UDMA mode wasn't successful, else it would have displayed:

CFG 88= 13F: UDMA modes supported: 0 1 2 3 4 5, current 3

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MS-DOS forever!

Complete thread:

• Change UDMA mode on WD400BB drive - RayeR, 06.01.2013, 21:20 (Users)
  • Change UDMA mode on WD400BB drive - Japheth, 06.01.2013, 22:41
    • Change UDMA mode on WD400BB drive - RayeR, 06.01.2013, 23:40
      • Change UDMA mode on WD400BB drive - Japheth, 07.01.2013, 06:07
        • Change UDMA mode on WD400BB drive - RayeR, 08.01.2013, 03:25
          • Change UDMA mode on WD400BB drive - RayeR, 11.01.2013, 01:20
            • Change UDMA mode on WD400BB drive - RayeR, 11.01.2013, 10:45
  • Change UDMA mode on WD400BB drive - Rugxulo, 07.01.2013, 14:20
    • Change UDMA mode on WD400BB drive - RayeR, 08.01.2013, 02:52
      • Change UDMA mode on WD400BB drive - Arjay, 11.01.2013, 02:00
        • Change UDMA mode on WD400BB drive - Arjay, 11.01.2013, 02:18
          • Change UDMA mode on WD400BB drive - RayeR, 11.01.2013, 03:53