CentOS and DMA - SATA HDD

in one of my CentOS box, using SATA HDD, it shows
Disk hda3 (/) No DMA! (Click to Enable)

even I have tried enable by
hdparm -d1 /dev/hda

it said
/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)

DMA in BIOS has enabled already. How can I enable DMA for my HDD now?

thanks,

 

 

 

 

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