AGP vs FBS

Wow! That's a lot of acronyms. I've just been in my system bios, and there was a setting for AGP speed vs FBS. I'ts now set at 2/3, but there is an option to set it to 1/1. Does anyone know if I can use this option? I have an ABIT BH6 mb with a PII/350 (3,5 x 100), 64 MB ram and a G400 32 MB single head. Will graphics performance increase or is it just different? Peder

Thanks for a quick and informative answer (though negative). This ng is great. Peder

a AGP card is designed to run at 66 mhz, anything above 66 mhz might make the card unstable. If your FSB (Front Side Bus) is running at 100 mhz you must set the AGP speed to 2/3 (2/3 of 100 = 66 mhz). If you set it to 1/1 your AGP card is running at 100 mhz and it will overheat. The 1/1 option when you are running your FSB at 66 mhz (1/1 of 66 = 66 mhz). Intel Celerons run at 66 mhz while P3's run at 100 mhz (new ones even at 133 mhz). In short... When you run your FSB at 100 mhz set the AGP speed to 2/3, when you run at 66 mhz set it to 1/1.... -- Sjon Peder Skou <[email hidden]> wrote in message news:8bbb1d$4d2$[email hidden]...

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> Wow! That's a lot of acronyms. > > I've just been in my system bios, and there was a setting for AGP speed vs > FBS. I'ts now set at 2/3, but there is an option to set it to 1/1. Does > anyone know if I can use this option? > > I have an ABIT BH6 mb with a PII/350 (3,5 x 100), 64 MB ram and a G400 32

MB

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> single head. > > Will graphics performance increase or is it just different? > > > Peder > >

I guess I won't take the chance of blowing my card (if that is even slightly possible). Thanks anyway. Peder > If it works you'll probably see an improvement - otherwise you might get > lots of lockups, large bus error rates, or just nothing at all.. > > Andrew

On Wed, 22 Mar 2000, Peder Skou wrote: > Wow! That's a lot of acronyms. > > I've just been in my system bios, and there was a setting for AGP speed vs > FBS. I'ts now set at 2/3, but there is an option to set it to 1/1. Does > anyone know if I can use this option? The AGP bus runs at 66MHz (that's normal 1x AGP) and multiples of this. Running it at 100Mhz (your FSB speed) will probably be a *very bad thing*, since you're effectively telling your video card to run half again as fast. I'm not sure how even the newer AGPx2 cards will handle 100MHz. Give it a go, if it doesn't work, you could just change it back I guess.. Be a good idea to have another PCI card on standby just in case you can't get any video at all with the AGP after you change it... > I have an ABIT BH6 mb with a PII/350 (3,5 x 100), 64 MB ram and a G400 32 MB > single head. > > Will graphics performance increase or is it just different? If it works you'll probably see an improvement - otherwise you might get lots of lockups, large bus error rates, or just nothing at all.. Andrew -- +-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-+ | Andrew Busch | email : [email hidden] | + PhD Student | + | Research Concentration in Speech, | Just when you think something is | + Audio and Video Technology | idiot-proof, somebody builds a + | QUT, AUSTRALIA | better idiot. | +-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-+