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Thread: Booting Problems

  1. #1
    lazy student nvening's Avatar
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    Booting Problems

    Hi, im trying to fix a dell 8400 for my freind however i have met a strange problem.

    The pc wont boot without resetting the cmos, then it works fine. However turn it back off and the cmos needs to be reset again.

    Without the reset the psu and f ans dont even spin up and no lights come on apart from the aux power light, showing the psu is getting power.

    Any ideas??

    Thanks, neil.
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    Senior Member kasavien's Avatar
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    Could the battery be flat on the motherboard?

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    lazy student nvening's Avatar
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    thats the only thing i can think of, but would that cause the problem?
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    lazy student nvening's Avatar
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    I tried a different battery from a working machine and still the same problem

    When i boot it up it says "invalid setup information", does that means some settings need to be changed or does it just always say that after a cmos reset - also possibly it just means the time and date?

    ideas??
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    Senior Member Ciber's Avatar
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    • Ciber's system
      • Motherboard:
      • Asus P6T
      • CPU:
      • Core i7 920 @3.2
      • Memory:
      • 12gb Corsair DDR3
      • Storage:
      • Crucial C300 256 + Crucial C300 128gb + Samsung F3 1tb
      • Graphics card(s):
      • GTX960
      • PSU:
      • Seasonic X900
      • Case:
      • Thermaltake Tsunami Dream
      • Operating System:
      • W7 64
      • Monitor(s):
      • Samsung 275T 27" LCD
      • Internet:
      • Plusnet Fibre
    After clearing the cmos, you would normally need to set the right settings in the bios for the processor fitted etc. However, the problem does seem to point to a faulty motherboard.
    Last edited by Ciber; 27-05-2007 at 03:07 PM.

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    Update the BIOS, worth a try...
    Windows XP / 1.1MB Orange BB: E6600 Core 2 Duo Gigabyte GA 965P-DS3P EVGA 8800GTS Superclocked WD 250GB SATA2/300 2GB Corsair TwinX 6400 DDR2 Corsair HX 520 PSU 17in LG Flatron SONY DVD RW DRU-800A Akasa Zen case SB Audigy

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    lazy student nvening's Avatar
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    Ok ive now tired two other batterys from working machines and ive up dated the bios to the latest version.

    But the problem remains.

    Ive also tried taking out all non essential components and tried it like that and i still had the problem.

    Is there anything else to try or is it a gonner??

    Also in regards to the bios settings there not much you can configure in there and its all done automatically and ive tried the factory defaults which didnt seem to change any settings anyway.

    Thanks, Neil.
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  8. #8
    lazy student nvening's Avatar
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    Well im upgrading the pc with a new case/ mobo/ cooler now and upgrading it to 2GB ram so hopefully that will solve the problems and give them a better and more reliable PC that can be properly upgraded in future

    One question though - would it be better to keep the current 400mhz 256 dimms installed and add the new ram or take the old stuff out and run the ram at 800mhz??

    neil.
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