Power Voltage Problem

By mfm1200
Feb 25, 2005
  1. Hi Forum,
    I keep getting this error on my system monitor.
    "01/16/05 19:46:10
    A voltage (+3.3 V) has gone outside of its recommended range.

    01/16/05 19:46:11
    A voltage (+3.3 V) has returned to its recommended range."

    Does this mean a problem with the PSU or is it MB related.

    Should I change the PSU to be safe

  2. RealBlackStuff

    RealBlackStuff TS Rookie Posts: 6,503

    This is your powersupply's problem. Can you give us make/model/output specifications?
    But check the system-monitor settings first, they may specify too small a deviation!
    As long as the power stays within maximum 10% (2.97 - 3.63) either way of the 3.3V it is reasonably allright (cheap PSUs do this).
    5% (3.135 - 3.465) is better and is what you should look for.
  3. luvhuffer

    luvhuffer TechSpot Paladin Posts: 443

    Ya what realblackstuff said. Some mobos BIOS settings, or temperature voltage monitoring programs have settings you can maually set for warnings to be issued if a voltage or temperature goes above or below the high low values that are set. Download a program like MBM5 (mother board monitoor 5). you can set it so any value can be displayed in your task bar by the clock. Then when you get the warning again you can see the voltage in real time and be able to assess whether it is going too high to be concerned with. I agree with the 5% deviation that rbs mentioned. 10% is safe but is too wide a swing for a good PSU. Here's a link to download MBM5:

  4. mfm1200

    mfm1200 TS Rookie Topic Starter Posts: 21

    thx a lot.
    the psu is a chinese manufacture, named SPI, rated at 420w.
    i will download the mb monitor and see what it is doing.
    i still think i will change the psu to an antec.
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