computer runs for few seconds then shuts down?

Discussion in 'Windows Desktop Systems' started by oO ShifterZ Oo, Dec 22, 2003.

  1. i have new gigabyte mobo/2500xp and pc2700 512 RAM n ati 128 9200 vidcard, w/ 160 g hdd.

    now i run the computer for a few sec (still on bios screen or setup from winxp disc) n i hear a loud noise n the comptuer shuts down?

    wats w/ it??
     
  2. Zedric

    Zedric NTFS Guru Folding Team

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    Sweden
    Loud noise as in a beep? It's probably the BIOS executing a safety procedure, thinking something is wrong. This is usually caused by:

    - CPU overheat (heatsink is off, badly mounted)
    - Fan failure (CPU fan is broken or connected to the wrong socket)
    - Dodgy sensors (everything is ok, but the sensors are crappy)

    The solution is to check the cables/heatsink/fans and reset the BIOS. This will hopefully revert the safety settings so it won't auto-shutdown.

    Good luck! :)
     
  3. ntentz

    ntentz FingerBanger

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    East Coast NJ
    Had the same thing happen jsut the other night, once i got into it i thought it was the harddrive I could hear it powering up and down over and over in the few secs in was on. If i unhooked the drive(which is brand new) the computer booted, i threw another psu in and all powered right up, so power supply went on mine, keep it in mind if nothing else comes up.
     
  4. LeeJend

    LeeJend Moderator

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    Fort Worth, TX
    What size is the power supply? 300W is minimum recommended for that setup. A good 250W might handle it but it's iff'y because the large RAM and new HDs use a lot more current on the 5vdc than the older systems did.

    The power supply rating will be on a label on one of it's covers visible inside the case.
     
  5. rushm001

    rushm001 In the beginning...... Political User

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    Sounds like a heatsink which isn't properly fitted. THe computer may emit a series of beeps like Zendric said.
     
  6. lfotto

    lfotto Guest

    I have had the same symptoms before. Once it was the fan on the CPU not functioning. The other time it was the Power Supply.