[KLUG Members] AGP problem (maybe?)

[Adam Tauno Williams]

>I believe AGP can borrow main memory to use as graphics memory and I
>think you can set that up in BIOS.  Perhaps turn that off.  I can't think of
>what it's exactly called but I remember seeing that in some BIOS that I've
>played with.
>Also, if you have a choice about what type of adapter is your main
>video adapter, try setting it to PCI.  The AGP card will still work but
>perhaps you can fool the motherboard/OS into working.

I've seen this. (Don't even ask why someone had a *server* with an AMD processor
and/or a AGP card.  Ick on both, IMHO).  In that system's BIOS it was called
"memory aperature".  The system originally had 128Mb of RAM and worked fine. 
They added 64Mb for a total of 192M,  and the server blew up chunks all over the
nice XFS tiled floor.  The memory aperature was set to "128M",  changing it to
"192M" (I was a little suprised that setting was available).  It seems to shove
the address space the card uses up out of the way.  The card was using 16Mb (why
oh why on a server...) and the OS then found 176M and tooled along as happily as
crappy PC hardware ever does.

AGP = A Game Platform.  Cheap tricks to get better video performance - IMHO.


Systems and Network Administrator
Morrison Industries
1825 Monroe Ave NW
Grand Rapids, MI. 49505