Probably a Stupid question, but....

Jman13

Senior member
Apr 9, 2001
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Hello. Got my E6420 mildly overclocked at 8x333 for 2.67GHz. I have no desire to push it further, as I'm on stock cooling, and stability and component longevity are more important to me than insane clock speeds. Still, I'd like to keep it here.

Anyway, in my BIOS (MB is an MSI P35 Neo2), I can select the FSB, select the PCI-E frequency (which I've locked at 100MHz), and select the RAM dividers and timings and everything. I don't see a setting for the regular PCI bus, which I'd like to keep locked at stock speeds too.

Am I correct that the PCI-E and PCI buses are interlocked, so if the PCI-E is locked at 100MHz then my PCI bus is also locked? OR...am I overclocking my PCI bus, and perhaps endangering other components. I can't imagine MSI would do that, with the board being touted as an overclockers board by the manufacturer, and them even having a tutorial on their website pushing the FSB to 500MHz. They don't say anything about the PCI bus.

I know it's probably a stupid question, but this is my first experience with PCI-E, as I've been running an AGP motherboard until yesterday. :)
 

aka1nas

Diamond Member
Aug 30, 2001
4,335
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The PCI and PCI-E bus shouldn't necessarily be connected. Most modern chipsets will lock the PCI bus at 33Mhz and not let you change it.