RE: Hangup on nforce2 UDMA

From: zipa24
Date: Tue Aug 12 2003 - 10:47:49 EST


Heip!

>I have nforce2 motherboard Soltek SL75FRN2-L with MCP southbridge. Using
>2.4.21 with AMD 74xx driver for IDE. If I leave the UDMA5 (UATA-100)
>setting BIOS leaves on the IDE disk I can hangup the machine almost
>deterministically with
>
>cat /dev/hda > /dev/null

I have nForce2 motherboard ASUS A7N8X Deluxe, and I have a similar problem.


>When UDMA is disabled in BIOS, I get lower performance of 17MB/s instead
>of 40MB/s. I have also tried IGNORE word93 Validation BITS and AMD Viper
>ATA-66 Override and none helped.

I could 'fix' the problem by doing "hdparm -qd1qk1qX67 /dev/hd[ab]" in initrc
which reduced the theoretical speed 'only' to 44.4MB/s.


>Cl<

// /

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