On Saturday 10 January 2004 23:53, Matt MacAulay wrote:
> Hi,
>
> I've been trying to improve the performance of my Nvidia FX5200 card,
> with mixed results. After trying to enable Fast Writes and SBA (Side
> Band Addressing) by uncommenting the line:
>
> options nvidia NVreg_EnableAGPSBA=1 NVreg_EnableAGPFW=1
>
> in /etc/modules.d/nvidia, and then rebooting, I take a look at
> /proc/driver/nvidia/agp/status, and see this:
>
> Status:          Enabled
> Driver:          NVIDIA
> AGP Rate:        8x
> Fast Writes:     Enabled
> SBA:             Disabled
>
> So Fast Writes works now (gave me an additional ~300fps in glxgears),
> but SBA is still a no-go. I'm aware that Fast Writes needs to be
> supported by the mobo, and needs to be enabled in the BIOS, but
> AFAIK, this is not the case with SBA.

You need the SBA support from the AGP controller, which obviously is in 
the MB.

You can check your AGP support from these locations.

MB support
/proc/driver/nvidia/agp/host-bridge

Card support (Which you allready have looked)
/proc/driver/nvidia/agp/card



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