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Thread: Mobo posts but nothing else

  1. #1
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    Angry Mobo posts but nothing else

    Hey all, been doing some upgrading to my carputer recently and ran into some trouble. I did a lil searching through the forum but didnt know how to search for it so here goes. Well, I put in a mobo and cpu that I used to have in my computer but I upgraded. The cpu is a amd k6-2 500. When I turn on the computer, it goes through post normally but once it is suppose goes to the screen that shows information such as what clock you are running and all, instead it just simply shows a blinking cursor. Ive clocked it down to see if it was that, Ive switched fans to see if just wasnt working right, Ive reset the bios, etc. Everything else was in the car and seemingly working before I swapped board and cpu. Any ideas? My only other thought might be the ram but at this point I havent had a chance to test that out. If you can offer any words of wisdom I would appreciate it.
    The Grand aMP3 Project
    Car: 96 Pontiac Grand Am
    Current Setup: AMD K62 300MHz, 64MB DIMM RAM, 20GB WD Hard Drive, Basic Video & Sound

  2. #2
    Raw Wave wizardPC's Avatar
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    I had this happen to me last year when I bought my bookPC

    Other things to check:
    1. Can the board handle the chip? I tried to put a 667 in a board that could only handle 500, and had the same problems you are describing

    2. Check the BIOS reset jumper. This was eventually what fixed my problem. the reset jumper was in the wrong position.

    3. Check the chip on another system. It could be that your chip is dead.

    4. check the motherboard. swap out chips and see if it works.

    5. check the MA/SL settings on your drives. I realize you only swapped the motherboard/chip, but check anyway
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  3. #3
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    Well, i wouldnt think that either the chip or mobo is bad. I just took both of them out of my home system about a month ago and were working perfectly fine. The reset jumper also shouldnt be the problem because it again was running fine before. I can search for hard drives and it finds it fine as the primary master. The only things that have changed since the board was up and running is the video card (went from tnt2 to 4mb sis), the sound card (since have removed to get it out of the equation), the hard drive (have tried to boot without it) and the ram. The ram would be the only thing I would think would/could be it. Im going to test it out as soon as I get a chance but until then would like to hear any other suggestions. Im quite frustrated with it considering I did this to have more peace of mind, but rather it has done the opposite. Thanks ahead for any posts concerning this.
    The Grand aMP3 Project
    Car: 96 Pontiac Grand Am
    Current Setup: AMD K62 300MHz, 64MB DIMM RAM, 20GB WD Hard Drive, Basic Video & Sound

  4. #4
    Maximum Bitrate CrazyLittle's Avatar
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    OK - you've come here asking for help, and then you debate about the answer given.

    Note to newbies - NEVER DO THAT!!!

    We don't know what condition your hardware is. For all we know, you could have tried to pry off that pesky cache ram from the motherboard because you were trying to upgrade it with a 128mb stick of PC133. The answer to your problem is called a PROCESS OF ELIMINATION. There might be some minute thing that you've unwittingly changed or perhaps we can narrow down the possible problems. ok?

  5. #5
    FLAC PatO's Avatar
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    It's not that we doubt your abilities to upgrade computers, it's just that there are so many things that can go wrong as soon as you pop the case open. Reguardless if the devices worked in other machines (or the same machine, for that matter) static electricity can kill something even when you only touch it long enough to put it in a static bag.

    All I can suggest is this:
    1 - Reset the bios jumper. Switch the jumper to the other contacts for 20 sec and then replace it. Some setting in bios may be incompatible with your new hardware.

    2 - Check the manual. Don't laugh! I've seen some mobo manuals that are quite complete (provided you can read broken english)

    2 - Unplug &/or replace EVERYTHING. Borrow a stick of ram from a friend - borrow a cpu while you're at it. Many things can't simply be unplugged, so you have to exchange them with something that works. (If your friends are being overly cautious, test your ram, cpu, etc in their machines....)
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  6. #6
    Raw Wave wizardPC's Avatar
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    <begin defense mode>

    OK - you've come here asking for help, and then you debate about the answer given.

    Note to newbies - NEVER DO THAT!!!
    I hope you aren't calling grandamp3 a newbie--he's been here 2 years longer than *YOU*

    <end defense mode>

    while I dont agree with how they say it, I agree with the both of them. I didnt think it was the chip, or the bios reset jumper--I thought my problem was the RAM.

    I tried everything ANYWAY. I replaced the hard drive, chip (actually sent the chip back to the retailer), and ram before I realized the manual for my bookPC was wrong about the position of the BIOS reset jumper. It was right according to the manual, but the manual was wrong. That little typo delayed me for about 6 weeks.

    BTW, it could be that your chip is overheating. It may be the same heatsink/fan that you have been using for months without problems, but now you have that stuff in a different case that may run much hotter--or possibly the contact between the chip and heatsink has broken, gotten air into it, weakened, or whatever. Check it.

    The things we suggest may not even be remotely the cause, but check them anyway. You may have done one or several things sloppily (and I have done this MANY times) because you are so used to doing it that you dont think about it anymore.
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  7. #7
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    Loose the graphics card and try to boot with a floppy drive connected, the noise from the floppy will indicate if it gets to the boot up point. And reseat the ram in another slot, which is a common fault.

    The k6-2 will run for a good 10 mins without a heatsink before it dies, so the fact the it stops in the same place everytime indictaes that this is not the problem.

  8. #8
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    Thank you for noting that wizardPC. Im afraid my abscence from the board has brought the "Newbies" out to seem that I am one of them. phil.45, if Im not mistaken, most mobos will not post without a video card. That is why we all have one in our system, otherwise it could possibly cut down on boot up time. I have read through the manual countless times and havent found any information that would lead to the problem. From your suggestions I will try to put in a k6-2 300mhz that was in the car before. I still havent tested out the ram but I will do that when I test out the cpu and we will see what results I get. In the mean time, CrazyLittle, as it would appear that you are the newbie in this thread, I would suggest looking to see when the member joined. And to the fact that you have 261 posts in about 5 months, we all know a little member that went through doing the same thing a while back. Not sure if he's around but if he is, you might check with him to see how much we "loved" him.

    peace out
    The Grand aMP3 Project
    Car: 96 Pontiac Grand Am
    Current Setup: AMD K62 300MHz, 64MB DIMM RAM, 20GB WD Hard Drive, Basic Video & Sound

  9. #9
    Retired Admin Aaron Cake's Avatar
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    Hmmm....Ignoring the obvious, could it be that the BIOS has the wrong speed/voltage set for the CPU. I've seen those symptoms with that problem before...Otherwise, clear the CMOS...
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  10. #10
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    Originally posted by grandamp3
    if Im not mistaken, most mobos will not post without a video card.
    You are mistaken They will definately POST and fully boot up (PC repair is my job), normally if you have a speaker attatched you will get one long beep and a couple of short ones to indicate the missing graphics card. This is how they are used in embedded applications like cash registers.

    Incidently, it wont help with boot times much if you take it out as it normally only adds 1 second to the total.

    You could always buy a POST diagnostic card, about $15, which has a 2 digit readout which will tell you what the bios is failing on.

    <EDIT>

    Also, as Aaron Cake says, it could be a CPU or BIOS voltage issue... Check that no jumpers have fallen off the board (This one got me fro a couple of days!)

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