> I obviously missed the start of this thread, but I use a 686b south bridge
> and have no problems. You need to make sure you buy a quality hard drive, and
> have a quality 40 pin/80 conductor cable (less than 18 inches long). I am
> running my hard drive at ATA/100 speeds by forcing ata66/100 with:
>
> /etc/lilo.conf
> --------------
> image=/boot/vmlinuz-2.4.3-12
> label=linux
> read-only
> root=/dev/hda6
> append="vga=791 ide0=ata66 hdd=ide-scsi"
>
>
> /etc/sysconfig/harddiskhda
> --------------------------
> USE_DMA=1
> MULTIPLE_IO=16
> EIDE_32BIT=3
> LOOKAHEAD=1
> EXTRA_PARAMS=X69
>
> And here are the results...
>
> [root@beta root]# hdparm -ivtT /dev/hda
>
> /dev/hda:
> multcount = 16 (on)
> I/O support = 1 (32-bit)
> unmaskirq = 1 (on)
> using_dma = 1 (on)
> keepsettings = 0 (off)
> nowerr = 0 (off)
> readonly = 0 (off)
> readahead = 8 (on)
> geometry = 4865/255/63, sectors = 78165360, start = 0
>
> Model=ST340823A, FwRev=3.54, SerialNo=6EF00A9T
> Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
> RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
> BuffType=unknown, BuffSize=512kB, MaxMultSect=16, MultSect=16
> CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=78165360
> IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
> PIO modes: pio0 pio1 pio2 pio3 pio4
> DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
> AdvancedPM=no
> Drive Supports : Reserved : ATA-1 ATA-2 ATA-3 ATA-4
>
> Timing buffer-cache reads: 128 MB in 0.68 seconds =188.24 MB/sec
> Timing buffered disk reads: 64 MB in 2.13 seconds = 30.05 MB/sec
>
> --
> Chris Kloiber, RHCE
> Enterprise Support - Red Hat, Inc.
>
>
>
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> Seawolf-list mailing list
> [EMAIL PROTECTED]
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>
Yes!! It works.
By appending only "ide0=66" in kernel parameters
my linux box using VIA686B is now running on its full harddisk speed(UDMA100 now,
UDMA33 before).
But a warning message appears in the boot message,
so I think that its stability cannot be assured.
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