Computer will not post when trying to lock PCI Express

[CBECKNET]

When trying to lock my pci express bus to 100Mhz the computer will not post. I currently have set in auto and my pci bus set at 33.33Mhz. When its set to auto does the motherboard lock the pci express at 100 or is it based off of the CPU. I have tried 101 and it still wil not post.

Any suggestion let me know.

 

[Furen]

You tried setting it to 100 with your FSB at 200? If you dont post when your FSB is overclocked but you do when it's not then it means that setting it to something other than auto actually UNLOCKS your PCIe... or something.

 

[CBECKNET]

I just tried placing the FSB back to 200 and set the pci express to 100 and it booted just fine. I'm assuming that placing it in auto locks the bus at 100. Is their a program that will show me when I'm in windows what the diffrent buss speeds are.

 

[Furen]

dont think so, but using a PCIe video card will pretty much tell you whether it's locked or not. Video cards (particularly Nvidia ones, like the one you have) cannot take more than something like a 5% overclock on the PCIe bus.

 

[CBECKNET]

Thanks Furen, solved my last problem with this build.

Thanks agian

 

[Muggy]

Use the nTune utility. It will let u know the exact frequency the PCI-E lane is running at. U could also use Clockgen which can be downloaded from www.cpuid.com.

 

[CBECKNET]

All give clockgen a shot when I get home. Can ntune work with just a nvidia graphics card, I thought you had to have a nvidia mobo to use ntune.

Thanks