[Bug 278721] agpgart aperture checking fails with kernel 2.6.22.4-65.fc7 update

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https://bugzilla.redhat.com/show_bug.cgi?id=278721





--- Comment #39 from Jack Tanner <ihok at hotmail.com>  2008-12-19 12:02:06 EDT ---
I have a NODUS3 mobo, which is an HP-branded ASUS A8M2N-LA. 

Like the OP, I have an Athlon 64 (mine is 4600+ stepping 02) with an nVidia
chipset.

On boot, I get a similar message under F10:

Checking aperture...
No AGP bridge found
Node 0: aperture @ 20000000 size 32 MB
Aperture pointing to e820 RAM. Ignoring.
Your BIOS doesn't leave a aperture memory hole
Please enable the IOMMU option in the BIOS setup
This costs you 64 MB of RAM
Mapping aperture over 65536 KB of RAM @ 20000000

My BIOS does not have any IOMMU-related options.

This is kernel-2.6.27.9-163.fc10.x86_64

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