joe@smittys.pointclark.net wrote:
Here is my ram_check from 1-128MB. It appears to fill the ram ok. But only returns a value of 0xffffffff. Does this mean the ram is WO (write only) for some reason? Thanks again for your help.
Okay, this is mostly a shot in the dark, but it's the only thing I can find that might cause something like this. I'm looking at the AGP size register (APSIZE, 0xb4) in the datasheet, and the default value is 0x00, which is 256MB (!!). I also don't see anywhere that AGP has to be explicitly enabled, it looks like it's enabled by default (yes, I see AGPCMD, but it says cycles will be ignored, not that the device is actually disabled and freeing the aperture memory).
Long story short, try setting the AGP aperture to 32MB and moving the aperture base (APBASE, 0x10-13) to somewhere else, preferably wherever the stock bios moves it to. Even if it's not the root cause, it'll get it out of the way for later.
-Corey