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    SubjectRE: IO-APIC on nforce2 [PATCH] + [PATCH] for nmi_debug=1 + [PATCH] for idle=C1halt, 2.6.5
    Allen Martin wrote:
    > This will require changing the value for register at bus:0 dev:0 func:0
    > offset 6c.
    >
    > Chip Current Value New Value
    > C17 1F0FFF01 1F01FF01
    > C18D 9F0FFF01 9F01FF01
    >
    > Northbridge chip version may be determined by reading the PCI revision
    > ID (offset 8) of the host bridge at bus:0 dev:0 func:0. C1 or greater
    > is C18D.

    I believe I have confirmed that the Shuttle AN35N BIOS indeed has this fix as
    of Dec 5th 03 version.

    lspci -xxx -vvv
    00:00.0 Host bridge: nVidia Corporation nForce2 AGP (different version?)
    (rev c1)
    ...
    60: 08 00 01 20 20 00 88 80 10 00 00 00 01 ff 01 9f

    Jesse

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