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Old 05-04-03, 03:23 PM   #1
etaym
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Join Date: May 2003
Posts: 2
Question Enabling UDMA 133 on nforce2 chipset

Hi,

I bought a new box with a chaintech 7NIF2 board that is based on an nforce2 chipset and has a UDMA133 ide controller. The distribution is RH9 with the 2.4.20-8 kernel that comes with it. I don't think the ide controller is getting to it's full potential. The results of hdparm -tT /dev/hda are:
/dev/hda:
Timing buffer-cache reads: 128 MB in 0.30 seconds =426.67 MB/sec
Timing buffered disk reads: 64 MB in 2.13 seconds = 30.05 MB/sec

dmesg gives the following message:

ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
NFORCE2: IDE controller at PCI slot 00:09.0
NFORCE2: chipset revision 162
NFORCE2: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hdaMA, hdbMA
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdcMA, hddMA

hdparm -i /dev/hda shows:
/dev/hda:
Model=Maxtor 6Y080L0, FwRev=YAR41VW0, SerialNo=Y3J1XCDE
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=160086528
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: (null): 1 2 3 4 5 6 7

What should I do to get the ide controller running at 133? Does nvidia supplies a driver for that controller? (the rest of the nvidia drivers, gforce, ethernet and sound are installed and working properly)

TIA

Etay Meiri
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