Blue screen with new CPU

By zsilent
Jul 14, 2010
  1. I just got a new cpu.. Core 2 Quad Processor Q8200 (bought brand new).

    But keep getting a blue screen before windows loads.The main blue screen error is 'Clfs.sys'.

    If i use my old processor it works fine.

    Here are my specs..

    Operating System
    MS Windows 7 Ultimate 64-bit
    Intel Core 2 Duo E6300 @ 1.86GHz 46 °C
    Conroe 65nm Technology
    2.0GB Single-Channel DDR2 @ 333MHz (5-5-5-15)
    FP-IN9 SLI(C55-MCP51) (Socket 775)
    SyncMaster @ 1680x1050
    320MB GeForce 8800 GTS (BFG Tech) 53 °C
    Hard Drives
    156GB Seagate ST316081 2AS SCSI Disk Device (SCSI)
    Optical Drives
    PHILIPS DVD8801 ATA Device
    High Definition Audio Device
    Power Supply
    Trust 570W Duel Fan

    The bios has been flashed to support core 45nm.

    The cpu is not overheating, and the cmos has been reset.
  2. Route44

    Route44 TechSpot Ambassador Posts: 11,966   +70

    This is the Common Log (CLFS) driver. It general-purpose logging service and part of your Windows OS.

    Clfs.sys is a 32/64-bit executable that requires no direct user interface.

    Normally an OS driver only points out that there is an issue but is usually too general to be of much diagnostic help.
  3. zsilent

    zsilent TS Rookie Topic Starter

    Thanks, I've been searching around and it seems a lot of people are having the same problem with this motherboard and cpu. I've ordered a new motherboard and will see how it goes.

    This thread can be closed.
  4. Route44

    Route44 TechSpot Ambassador Posts: 11,966   +70

    Thanks for this information. Before closing, can you tell us the make of the motherboard?
  5. zsilent

    zsilent TS Rookie Topic Starter

    The motherboard is "Asus P5KPL-AM SE", got it today and all working fine with new processor :)
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