finsmaniac02

Hi, I just had a simple question... i have an nforce 2 motherboard (abit nf7-s) and there is a setting called agp frequency... what is this, and what should i set it at?

Sharkims

To answer that question, what kind of Video Card do you have?

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System-1:
MSI K8N Neo Platinum || A64 3200+(200x11) - Zalman 7000A-AlCu || 1x1gb OCZ PC3200@400(3-3-3-7) || 9800XT || WD Raptors 2x36 RAID0
System-2:
MSI 875P Neo-FIS2R || P4 2.4c(FSB:200) - Intel Cooler || 2x256 GEIL PC3200@400(2-3-3-6) || AIW9000 || WD SE 120x2 RAID0
System-3:
DELL Inspiron 9100 || P4 3.0c(mobile) || 2x256mb PC3200(3-3-3-8) || Mobility Radeon 9700 - 128mb || WSXGA+ 15.4" || 60gb 5400RPM 8mb

Vampyromaniac

AGP frequency, if it is what I am thinking of, should always be set a 66MHz.

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Zardon

AGP frequency is really just to allow you to overclock your video card in MHZ from stock settings of 66mhz, as vamp says I wouldnt really touch it and if you want to overclock use a dedicated overclocking software tool for your video card.

ill take a little excerpt from my good friend Adrians guide over at rojakpot http://www.rojakpot.com/ (they have a wondeful bios optimisation guide for those interested).

The AGP bus clock speed is referenced from the CPU bus clock speed. However, the AGP bus was only designed to run at 66MHz while the CPU bus runs anywhere from 66MHz to 133MHz. Therefore, a suitable AGP bus to CPU bus clock speed ratio or divider must be selected to ensure that the AGP bus won't run way beyond 66MHz.

When the ratio is set to 1/1, the AGP bus will run at the same speed as the CPU bus. This is meant for processors that use the 66MHz bus speed, like the older Intel Celeron processors.

The 2/3 divider is used when you use a processor running with a bus speed of 100MHz. This divider will cut the AGP bus speed down to 66MHz.

The 1/2 divider was recently introduced with motherboards that provide 133MHz bus speed support. Such motherboards need the 1/2 divider to make the AGP bus run at the standard 66MHz. Without this divider, the AGP bus would have to run at 89MHz, which is more than what most AGP cards can withstand.

Generally, you should set this feature according to the CPU bus speed you are using. This means using the 1/1 divider for 66MHz bus speed CPUs, the 2/3 divider for 100MHz bus speed CPUs and the 1/2 divider for 133MHz CPUs.

If you are overclocking the CPU bus, you are supposed to reduce the divider to ensure that the AGP bus speed remains within specifications. However, most AGP cards can run with the AGP bus overclocked to 75MHz. Some would even happily run at 83MHz! However, anything above 83MHz would be a little iffy.

In most cases, you can still stick with the original AGP bus / CPU bus clock divider when you overclock the CPU. This means that the AGP bus will be overclocked as well. But as long as the AGP card can work at the higher clock speed, it shouldn't be a problem. In fact, you can expect a linear increase in AGP bus performance.

Be warned though - overclocking the AGP bus can potentially damage your AGP card. So, be circumspect when you overclock the AGP bus. 75MHz is normally the safe limit for most AGP cards.


personally I wouldnt touch it at all