Re: DVD only gets udma2 (udma4 capable)

From: Peter Mulholland (darkmatter_at_freeuk.com)
Date: 05/31/05

  • Next message: Vinny Abello: "Re: Poor network performance: a lot of timeouts" 
    Date: Tue, 31 May 2005 01:22:11 +0100
To: freebsd-stable@freebsd.org

    Hello Axel,

    Monday, May 30, 2005, 7:40:43 AM, you wrote:

    AG> Im getting problems to get the DVD burner in udma4 mode. It says:
    AG> AG> ata1-master: DMA limited to UDMA33, non-ATA66 cable or device
    AG> This is wrong, the device is udma4 capable.

    AG> The problem seems to be in the detection of the cable type, it detects it as
    AG> 40-pin, while its a 80-pin one. (dmsg is at the end)

    AG> * The DVD is secondary master, with no other devices on the cable

    AG> * THe bios detects it correctly, on boot screen it says udma66

    AG> * When booting in w*n, it says udma66

    AG> * I have another hard drive udma100 on same system, so I inverted (identical)
    AG> cables, and the HD is still at udma100, this to discard any cable problems.

    AG> Its important to get udma66 working, in order to achive maximum burning speed
    AG> for the drive.

    AG> So i'm out of ideas here, and any help would be apretiated.

    AG> Thanks in advance :)
    (snip)

    Try playing with the jumpers on the drive. If it is set to Cable
    Select (CS or CSEL), try manually jumpering it to Master. To be 100% correct,
    the drive should be jumpered as CSEL but i've seen quite a few cd/dvd
    drives that don't seem to work correctly when put in CSEL mode with an
    80 wire cable. 

    -- 
Best regards,
 Peter                            mailto:darkmatter@freeuk.com
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