Asus K8N-E and slow disk transfer

Jorn Argelo jorn at wcborstel.nl
Thu Jan 6 10:04:42 PST 2005


On Thu, 6 Jan 2005 16:50:05 +0000, Ganael Laplanche wrote
> [This is a repost from the amd64 list]
> 
> Hi all,
> 
> I've just bought an ASUS K8N-E mobo. I'm using FreeBSD-5.3-Stable 
> (amd64) and suffering from *very* slow disk transfer rates. The 
> chipset is an nforce3 and is correctly detected at boot :
> 
> # dmesg
> [...]
> atapci0: <nVidia nForce3 Pro UDMA133 controller> port
> 0xffa0-0xffaf,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 8.0 on 
> pci 0 [...]
> 
> My disk is an UDMA100 one, everything seems to be correct :
> # atacontrol mode 0
> Master = UDMA100
> Slave  = BIOSPIO

Are you sure that the BIOS is using the correct PIO mode? You can try setting 
it yourself though. However, I don't have too much experience with that. I do 
know that the incorrect PIO mode can make your PC extremely slow.

Jorn

> 
> # sysctl -a
> [...]
> hw.ata.atapi_dma: 1
> hw.ata.ata_dma: 1
> [...]
> 
> I use a new 80 lead ATA cable (shipped with my mobo)... Evrything 
> should be okay, but the whole system is very very slow. Copying a 
> 600 MB takes about 10 minutes (1 MB/sec) and makes the system nearly 
> unusable during the copy.
> 
> Do you have any idea ?
> 
> Ganaël LAPLANCHE
> ganael.laplanche at martymac.com
> http://www.martymac.com
> Tel : (+33)6.84.03.57.24.
> 
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