Questions

PSON signal to power supply unstable

+
0 Votes
Locked

PSON signal to power supply unstable

rkier@home
I am working on an e-machine T2682 that turns on but on turn off, the computer cannot be turned back on again without completely removing power first. On turn off, the power indication light on the front of the machine blinks. The PSON line to the power supply seems to be unstable on power down, either by front switch or by software shutdown. Symptoms are the same with a replaced power supply.
  • +
    0 Votes
    Paul D. Masley

    rkier, before you do any major disassembly, see if you can boot the machine to safe mode. If you can, disable the hibernate mode. I have 10 eMachines (intel based) in my office. Two did what you are describing. Also, a couple of other things. If that unit is factory fresh, it only has 256 megs of memory. XP likes 512, but loves 1 gig. An upgrade to XP Pro will make it sing.

    I have two 3985's that I use as servers and a 2984 as my desktop unit.

    +
    0 Votes
    Jesus_C

    Sounds like a damaged power supply.

    +
    0 Votes
    kpak44wh

    Rule of thumb, first check ac outlet for current, and then
    check power supply. I don't think that it's a regular atx
    power
    supply, you may have to get one from it's website. I have
    had
    alot of emachines **** their power supply, so it's really
    no
    biggi. You have to put the exact type of power supply in
    the emachine, that's probably why it won't boot with the
    second ps. Another thing, are the white connectors to the
    ps on the board, do they look burnt. If nothing else
    works, try replacing the motherboard, if you have a weak
    or broken connection on the board, once it warms up it , it
    loses connection and shuts down. good luck

  • +
    0 Votes
    Paul D. Masley

    rkier, before you do any major disassembly, see if you can boot the machine to safe mode. If you can, disable the hibernate mode. I have 10 eMachines (intel based) in my office. Two did what you are describing. Also, a couple of other things. If that unit is factory fresh, it only has 256 megs of memory. XP likes 512, but loves 1 gig. An upgrade to XP Pro will make it sing.

    I have two 3985's that I use as servers and a 2984 as my desktop unit.

    +
    0 Votes
    Jesus_C

    Sounds like a damaged power supply.

    +
    0 Votes
    kpak44wh

    Rule of thumb, first check ac outlet for current, and then
    check power supply. I don't think that it's a regular atx
    power
    supply, you may have to get one from it's website. I have
    had
    alot of emachines **** their power supply, so it's really
    no
    biggi. You have to put the exact type of power supply in
    the emachine, that's probably why it won't boot with the
    second ps. Another thing, are the white connectors to the
    ps on the board, do they look burnt. If nothing else
    works, try replacing the motherboard, if you have a weak
    or broken connection on the board, once it warms up it , it
    loses connection and shuts down. good luck