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Thread: CMOS checksum error




  1. #1
    Join Date
    Aug 2003
    Posts
    62

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    Ok, so I just got my new Abit NF7-S board today and after installing it and putting everything back together I start it up. It gets to POST but i notice it says my processor is a XP 1350mhz, but it is actually a 2200+. POST then dislpays "CMOS checksum error" and it does not boot up any further. How can I fix this?

  2. #2
    Join Date
    Aug 2003
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    1,790

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    Mine says that when I overclock to settings it can't handle.

    Try resetting your CMOS via the jumper...the instructions should be in the manual on how to do so.

    Did you get the rev. 2.0 board?

    FX5900 - 3DMark2001 [20,566] - 3DMark2003 [7,281] - Aquamark3 [56,694]
    Ti4400 - 3DMark2001 [16,028]

  3. #3
    Join Date
    Aug 2003
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    62

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    yeah, its the v2.0 board and i have reset the cmos jumper a few times alerady and i even took out the cmos battery and put it back in. neither helped.

  4. #4
    Join Date
    Aug 2003
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    Ok, so I took out my soundcard, repositioned my video card to make sure it was in right, and even checked the voltage of the cmos battery which seems to be fine. What else could be causing this problem? The only thing that I can think of is POST recognizing my 2200+ as AMD XP 1350mhz but I dont know if this would effect the CMOS checksum or how to fix it to make it register as a XP 1800mhz. I tried looking for a clock speed jumper on the motherboard, but none is listed in the manual.

  5. #5
    Beefy Guest

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    Can you actually get into your BIOS and set things up properly? I had an old MSI board that would spit out a similar error until I configured the CMOS, then it was happy.

  6. #6
    Join Date
    Jul 2003
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    1,393

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    Same as beefy, intel board did that until i load default of reconfigured it.
    CPU: Opteron 165 @ 311x9 - 2817.8 mhz - 1.47v
    Mobo: Abit KN8-SLI
    RAM: 2x512 Crucial Ballistic Tracers500 @ 202 mhz 2-2-2-5 T1
    GFX: Asus EAX1950pro @ 648/1408
    PSU: Thermaltake 500w
    SC: Audigy 2 zs
    LCD: 22' Samsung 225bw
    Speakers: Klipsch ProMedia 5.1 Ultra
    Mouse: Logitech G5

  7. #7
    Join Date
    Aug 2003
    Posts
    1,790

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    When I get that error it will not load the BIOS, but instead sit and search for a floppy or CD to recover from.

    FX5900 - 3DMark2001 [20,566] - 3DMark2003 [7,281] - Aquamark3 [56,694]
    Ti4400 - 3DMark2001 [16,028]

  8. #8
    Join Date
    Aug 2003
    Posts
    62

    Default

    nope, i cant access my bios, any other suggestions?

  9. #9
    Join Date
    Feb 2003
    Location
    Fincastle, IN, USA
    Posts
    3,776

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    Well when it gives the Error, does it say sometihng like Press F1 To Enter BIOS or F2 to continue with default values?

    Cause My mobo is like that, and whjen it does Chcksum error DELete doesnt get you in, only F1 will

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