READ_DMA Error

Hi all,

During FreeBSD 6.2 installation, the process failed because of errors
like the one below:
READ_DMA UDMA .... ICRC error LBA=37505132

I managed to install by setting hw.ata.ata_dma=0 at boot time but the
same errors occur after installation and at boot time so I had to put
hw.ata.ata_dma=0 in loader.conf and now the system is working.

I checked my hard disk which a 80GB Western Digital+ thoroughly and
there were no errors reported (using fsck in single user mode). Also I
used to install Fedora Linux on this disk without any problems.

It looks that disabling DMA caused my disk to work with lower
performance. Am I right? If yes, are there any solutions to eliminate
those READ_DMA errors while DMA is enabled?

Thanks in advance,
Bahman

PS:
Motherboard: ASUS A7V8X-X
CPU: Athlon XP 2500 at 1833MHz
$ uname -ai
FreeBSD attila 6.2-RELEASE FreeBSD 6.2-RELEASE #0: Fri Jan 12 10:40:27
UTC 2007 root@xxxxxxxxxxxxxxxxxxxxxxx:/usr/obj/usr/src/sys/GENERIC
i386 GENERIC
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