Computer won`t boot, nothing on monitor etc.

By jallenm
Sep 2, 2006
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  1. i have a computer from where i work that i am looking at for them but i cant find out whats wrong. one day the monitor showed nothing. i tryed changing monitors nothing. i put that pc card into another computer that i have and it works so its not that. now i noticed i have no light on the motherboard. the cd rom light comes on like its starting and the fan runs but that seems to be all. i get nothing on the screen.
  2. Boogityboo04

    Boogityboo04 Newcomer, in training Posts: 351

    Could the motherboard have come disconnected from the PSU, or just failed?

    BTW. Please put a more descriptive title)
  3. jallenm

    jallenm Newcomer, in training Topic Starter

    Computer Wont boot

    i checked the psu connection and it seems ok. i also tried making a boot disk and that didnt work either
  4. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,675   +152

    Can you clear the bios? Unplug the AC power, and take out the CMOS battery for a few minutes. Reinstall the battery and try turning on the PC
  5. jallenm

    jallenm Newcomer, in training Topic Starter

    i tried that but i dont know how long the battery needs to be out so ill try again and leave it out for 10 min just to make sure its out long enough thanks for ur help. its been down for few weeks and cant figure this one out.
  6. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,675   +152

    5 minutes is usually more than enough time. Is there a CMOS jumper near the battery? If this still doesn't help, the motherboard is probably toast. Make very sure that you unplug the power cord from the computer to the wall plug (AC house current source)
  7. jallenm

    jallenm Newcomer, in training Topic Starter

    tryed battery not luck

    i tryed clearing the bios but had not luck booting..there is a jumper next to the battery... how could i test the motherboard
  8. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,675   +152

    One other thing to do, is to remove all the PCI cards except video if you have one. Pull the CD ROM(s) and floppy cables from the motherboard. All you need is video, cpu, memory and power to POST. No hard drive is even needed...

    Note:
    if you have a PCI or an AGP video card, these cards can keep a computer from booting or posting if they are bad
  9. jallenm

    jallenm Newcomer, in training Topic Starter

    i had the power cord unplugged... i will try to remove everything and see if that works if it works that means its one of the cards right? thanks for your help
  10. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,675   +152

    "i will try to remove everything and see if that works if it works that means its one of the cards right?"

    Yes! I have seen PCI cards including modems, NICs. and AGP video cards cause NO POST or NO BOOT. Incorrect Bios settings can cause no boot, but that's what the "clearing the CMOS" is supposed to correct
  11. jallenm

    jallenm Newcomer, in training Topic Starter

    ok i unplugged every thing except the video card and it still didnt boot.. i have tested the video card by putting it in another computer and it works fine... so does that mean the motherboard is messed up and how can i test to make sure before i either buy a new motherboard or new computer?
     
  12. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,675   +152

    I would say the motherboard is bad... There is nothing more that I can say
  13. jallenm

    jallenm Newcomer, in training Topic Starter

    is there anyway to test just the motherboard? i guess im just going to have to take it in if not. thanks for all ur help. i wish there were more people willing to help it took me almost 2 weeks just to get anyone to help.
  14. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,675   +152

    I repair a lot of older computers, or to say it in another way, computers that are long out of warranty. The steps we have taken here, are usually all that I do before scrapping a motherboard... Have you swapped out the power supply? Just a thought... Sorry about the delay in replying to your post. This is a big site, and the guys and gals here do there best to answer what they can, as best they can. I just got here myself.

    Good luck :)
  15. jallenm

    jallenm Newcomer, in training Topic Starter

    i dont have another power supply to put in but i think im goin to have it looked at by someone thanks for all your help when i said it took that long to get help i meant on other sites and other things like chat on yahoo. techspot was very helpfull and i would recommend it to anyone. thanks again for your help.
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