A motherboard after its overclocked???

Discussion in 'Hardware' started by Riffle2124, Jul 16, 2005.

  1. Riffle2124

    Riffle2124 Private E-2

    I was wondering since overclocking speeds up the FSB... does it effect the pci slots? I have a video capture card (pci) and if I overclock will it make this device not function.

    Thanks
     
  2. A.Son

    A.Son Sergeant

    Each bios has their own way to OC so you will see it will effect or not?
    when you ajust AGP then it will effect to PCI for some bios
    and some for each of them when you OC. :D
     
  3. risk_reversal

    risk_reversal MajorGeek

    This may be a bit late but the answer is not so clear cut. There are 2 cases.

    1. If your mobo has an agp/pci lock, then o/c'ing you fsb will leave the agp/pci buses unchanged at 33/66

    2. If your mobo does not have this lock then any increments in the fsb will increase the speed of your pci bus which will be dependant on the divider used by the mobo ie on AMD systems (dunno about intel) a mobo running a 166 (333) fsb will have a 1/5 divider. So pci speed 166/5=33. If you increase the fsb speed to 170 then pci bus speed 170/5=34.

    The pci bus is usually ok up to 36/37 from there on, corruption can occur at many level to include cards not working pci & agp and also data corruption on the HDD.

    Good luck
     

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