Switching fsb but not peripherals

[Guest]

Which motherboard supports changing the fsb for peripherals? Also, any idea on how much performance is gained running at a higher fsb than higher multiplier?

 

[Crashman]

It can't be done, chipsets only support standard dividers of the system bus for the PCI buss and AGP. So you can only overclock the PCI bus and AGP by overclocking the system bus.

Suicide is painless...........

 

[Red_Zealot]

That's true, but you can underclock your PCI and AGP bus to remain at a constant level on some mobos, while overclocking the FSB. But I haven't heard of being able to overclock theose buses beyond what their normal divider would allow. Say you have a processor @ 800 Mhz. Running the processor at 8x100 and 6x133 will deliver the same performance (approximately), but the 133 Mhz FSB will make your memory, AGP, PCI, etc. run faster (Higher benchmarks!). But you need to be careful, and FSB more dangerous because all those components might not be able to handle the increased FSB.

"If you teach a child to read, then he or her will be able to pass a literacy test" - George W.

 

[lagger]

even if you could defeat the standard multipliers\dividers it isn't neccessarily a good idea, some pci cards won't run stabley (sp?) at clockspeeds near or over 45 mhz
Lagger

 

[Guest]

yeah, I wanted to run at high fsb but not for the peripherals because of the problem they have. I was hoping to reach 150mhz since I only have the vid card and nic to worry about.

 

[Guest]

On Abit's BE-6-II you can change the divider for PCI and AGP BUS.

Why isn't this feature in the Asus CUSL2-C I now have?