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Thread: Need help building computer

  1. #1
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    Question Need help building computer

    I'm in the process of building a barebones system for my car and I've hit a snag.

    So far, I've gotten the computer to boot up to BIOS, correctly display the processor and its speed (Pentium 133), amount of RAM (32 MB), recognize the video card (I can read all this on a monitor, can't I?), and recognize the HD I installed as master. However, I get the following error messages in the BIOS screen:

    Floppy disk(s) fail
    [Not really a problem, since I haven't installed a floppy]
    Keyboard error or no keyboard present
    [This is troublesome. I have a keyboard plugged in, but I still get this error. Any suggestions? This is the main thing I'm stuck on]
    CMOS Checksum error-Defaults loaded.
    CMOS battery failure.
    [Should I worry about either of these two CMOS messages?]
    Press F1 to continue, DEL to enter SETUP
    [I can't hit either--it isn't recongnizing my keyboard.]

    Anyway, anyone have any advice for this keyboard recognition issue?

    As a side, my motherboard has two input slots that look like a keyboard would plug into. One is identical the the keyboard on my new-ish Micron PC--I've been (unsuccessfully) using the Micron's keyboard in the Car Computer's keyboard slot. There is also a larger slot that looks like a keyboard would plug into it. Here's a crude picture of the first:

    . .
    . .
    ...
    .

    While the second, larger one looks like this:
    |
    | |
    | |
    |

    I'm sure that's totally not helpful. Anyway, any response would be appreciated. Thanks.

  2. #2
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    Post

    whoo... Alright, here goes:

    The CMOS battery failure and CMOS defualts loaded means that your computer's batter is dead. You need to find the small, round, silver disc-like battery and get it replaced. Take it to the store, and find one the same size with the same voltate.

    The keyboard/diskette errors:
    I believe the small keyboard port you talk of is actually a PS/2 Mouse port, and the larger one is the AT keyboard port.

    Once you get your keyboard working in the right port (you may need to get an AT-PS2 converter to convert from one type to another)

    If you want to disable the errors, go into setup, usually del or f1 or something on startup. In setup, goto basic bios setting, and change "Halt on all errors" to "Halt on no errors" or something similar.

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  3. #3
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    Thumbs up

    Thanks for your (unbelievably fast) reponse. I'll pick up a new battery and a PS2-AT adapter (if they exist) as soon as I can. Thanks.

  4. #4
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    Here, hope this helps ya:

    http://mp3box.2y.net/temp/keyboards.jpg

  5. #5
    FLAC DodgeCummins's Avatar
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    I concur...BTW as long as you leave it running (power on) you don't need the battery.

    And really if you don't change anything from the defaults, then you don't need the battery.

    (just incase you have a hard time finding the battery)

    Now if you do change some stuff in the BIOS and turn power off, then it will all return to default, once you put power back on (if the battery is bad)



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  6. #6
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    Thanks. I am having trouble finding the battery on my motherboard. Is it possible that my motherboard doesn't have one? (I did buy it used off of ebay).

    Any other hints on finding the battery? Also, if I purchase a battery, what kind do I need? It is a socket 7 motherboard with a P133 processor. Thanks.

  7. #7
    FLAC DodgeCummins's Avatar
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    Oh it has one, but it may look like a 16pin IC. May have the name DALLAS on it.

    The newer motherboards have an actual watch type battery in a holder.

    The older ones had this chip thing.

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  8. #8
    Raw Wave wizardPC's Avatar
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    there has got to be a battery recepticle at least. maybe it didnt come with a battery installed, but it definitely has to have one. is there maybe a black plastic disc about the size of a nickel with metal tabs?
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  9. #9
    FLAC DodgeCummins's Avatar
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    bdk3clash, (I pulled the cover off my computer)

    If you have an older motherboard like me you will have a chip looking thing (in my case right next to the bios) that says something like...

    DALLAS
    DS12887A
    REAL TIME
    9704A2 089092

    and looks like this
    http://www.resource800.com/images/DS12C887fin.JPG

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  10. #10
    Retired Admin Aaron Cake's Avatar
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    Cool

    A lot of motherboards with Dallas chips don't have a seperate connector for a battery. When those chips die, you either replace the chip, or the board.

    ------------------
    Aaron Cake
    London, Ontario, Canada

    Player: Cyrix 200, 32MB RAM, 10.2Gig Quantum HD, Onboard EtherNet/Sound/Video, Custom Lexan Case, Arise DC-DC, Win95 Kernal w/Custom Player
    Car: '86 Mazda RX-7 w/Basic Performance Upgrades
    Player: Pentium 166MMX, Amptron 598LMR MB w/onboard Sound, Video, LAN, 10.2 Gig Fujitsu Laptop HD, Arise 865 DC-DC Converter, Lexan Case, Custom Software w/Voice Interface, MS Access Based Playlists
    Car: 1986 Mazda RX-7 Turbo (highly modded), 1978 RX-7 Beater (Dead, parting out), 2001 Honda Insight
    "If one more body-kitted, cut-spring-lowered, farty-exhausted Civic revs on me at an intersection, I swear I'm going to get out of my car and cram their ridiculous double-decker aluminium wing firmly up their rump."

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