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P45 (P5Q deluxe) memory controller question

Mr MagOO

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Hi all,

in my P5Q deluxe mobo, i've got this MCH device (original DSDT extract) at the same level as PCI0@0 :

            Device (MCH)
                Name (_HID, EisaId ("PNP0C01"))
                Name (_UID, 0x0A)
                Name (_CRS, ResourceTemplate ()
                    Memory32Fixed (ReadWrite,
                        0xFED14000,         // Address Base
                        0x00006000,         // Address Length

and OSX detects a device (8086,2e20) which is a Memory Hub Controller under IOACPIPlane:/_SB/PCI0@0/.


The first memory controller have a memory allocation in DSDT, the second one is detected by OSX but it has no memory alloc and no irq (seen in ioreg)


Do i have to keep this two devices ?

Is it the same device? :)


Thank you for your help.



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Remove the device from your DSDT, but save it as test.aml in /Extra, load it at the boot prompt like this: DSDT=test.aml and see what happens...that's what I would do to begin with.


I asked kind of the same question myself a couple of years ago :)


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