Hello,

I try to use a new board with Redhat 7.3 (kernel-2.4.20-20.7.athlon.rpm). I know, 7.3 is old, but i don't have to choice ...
The board is a Asus A7V8X-X, with a Maxtor 40Gb 7200rpm HDD, and i'm not able to have a good HDD speed ...
a hdparm -Tt /dev/hda give me this results :

Timing buffer-cache reads: 128 MB in 0.43 seconds =297.67 MB/sec
Timing buffered disk reads: 64 MB in 11.84 seconds = 5.41 MB/sec

300 Mb/s for the cache, it's a shame.
But 5.41 Mb/s for the disk, it's 10x slower than what the disk can make...

I try that :
/sbin/hdparm -X67 -d1 -u1 -m16 -c3 /dev/hda
and the answer is :
setting 32-bit I/O support flag to 3
setting multcount to 16
setting unmaskirq to 1 (on)
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
setting xfermode to 67 (UltraDMA mode3)
multcount = 16 (on)
I/O support = 3 (32-bit w/sync)
unmaskirq = 1 (on)
using_dma = 0 (off)

He don't like the DMA .... ;(
Do someone have a idea ?
Thanks
Regards
Jean