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Help with OC on E8400

Discussion in 'Overclocking & Cooling' started by etypejag, 21 Feb 2010.

  1. etypejag

    Associate

    Joined: 13 Feb 2010

    Posts: 2

    Hi,
    I am after a little overclocking advice/help.
    I have clocked my MOBO (Biostar TP45 HP) FSB to 440 with an Intel 8400 and this gives me a nice 3.9Mhz. It is stable using Prime 95 and temps are very good under load. I do not need to overvolt anything (apart from RAM) running at this speed.
    I am trying to get to over 4.0Mhz, but most times I go over 440 (say 445) on the FSB, the system starts, but fails to recognise the 9800GTX+ Graphics card. If on the odd occasion it does recognise the card, it seems ok and stable when I run Prime 95, although I only run it for a short (30 min) time. I have tried upping the voltage through the CPU VCore but it makes no difference.
    I have disabled all the usual (I think!) things in the BIOS.
    Can anybody help, or do you think I just have a system that has reached it's limit at 3.96Mhz.

    Thanks in advance
    Marek
     
  2. El Jimben

    Mobster

    Joined: 24 Jul 2006

    Posts: 2,751

    Location: Essex

    What are you doing with the other voltages (MCH, VTT etc), are they all on auto?
     
  3. etypejag

    Associate

    Joined: 13 Feb 2010

    Posts: 2

    Yes, they are all on Auto except for RAM which I have set at 2.18v