View Full Version : ATA66 hard drive is at running at Ultra DMA mode-2

22-11-2002, 10:04 PM
Hiya - I have two Seagate hard drives on the Primary IDE channel (Master = Seagate 40GB ATA100 7200RPM Barracuda, Slave = Seagate 7.8GB ATA66 5400RPM Cheetah). When the computer fires up the Bios shows the two drives SMART enabled but the Primary is set at UDMA5 (ATA100) while the Slave is only UDMA2 (ATA33). Can anyone tell me how to get my board to recognise the correct UDMA setting for the slave drive?

23-11-2002, 12:13 AM
You could try this UATA100 Configuration Utility (http://www.seagate.com/support/disc/drivers/index.html) on the 7.8G drive. This utility allows you to 'reprogram' the interface rate for a drive (sometimes a drive can be 'detuned' to make it work with a specific bios). So you can check that the drive is actually enabled for ATA66.

23-11-2002, 11:12 AM
Thanks very much! I tried the utility and found that the drive cannot be configured to go above ATA33. Went back to Seagate site and checked product manual for the drive and it turns out that it only supports up to 33MB/sec! Oops! Don't know why I thought it was ATA66.