How to enable 2XAGP ?

[kleinbull]

This may seem like a simple question, but I'm a simple minded guy I guess. I downloaded and ran PCIList, and it let me know that my G400 DH is only running in AGP 1X mode. I had suspected this, but have never found a setting in bios to enable 2x AGP. I have the Abit BE6-II w/PIII 500Mhz. My FSB is set to 100Mhz and AGP 1/1 which is not 133Mhz.

Is this the 2x enabler, by going to a 133Mhz PIII, is that the only way I will achieve 2x AGP?, or is there a setting somewhere I need to switch?

[dZeus]

first of all: AGP bus/port speed and AGP texture transfer speeds are 2 _COMPLETELY_ different things.

the AGP port should run at 66MHz at _ALL_ times... so change the agp multiplier to 2/3 when running at 100Mhz FSB.

Probably, it will then also use 2x AGP automatically. Problem solved

[Dr Mordrid]

Matrox has a software utility, MTSTU , for doing that and even a bit of tweaking. Get it here;

http://www.matrox.com/mga/support/dr.../ftp_util2.cfm

Look for the file named mtstu418.zip.

Dr. Mordrid

[Kruzin]

dZeus is correct.
You should have the AGP divider in your BIOS set to 2/3 (100*2/3=66MHz, which is what it is spec'd to run at). Once you do that, it's very possible the card will kick into 2x mode. If it doesn't, you can use the utility Doc mentioned to force 2x.