A8V and Power

Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

I'm building two PCs with the same exact hardware, using pretested
mobo/cpu/ram bundles (the mobo is an Asus A8V). The issue is, the PC
powers up when the power supply master switch is turned on (not the
front panel power switch), which I believe isn't supposed to happen.
I've tried both mobos and the problem persists with both. Even with
no jumpers connected to the case, the PC powers on. It's an Antec
case with a Smartpower 350 watt power supply.

I'm assuming the issue is a silly error on my part, but would anyone
know where to look first?
7 answers Last reply
More about power
  1. Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

    There is a setting in bios under Power, Restore on AC power Loss. You
    should change it to Last State.

    Example, With Last State selected. If the computer was on during a power
    failure it would startup when the power returns. If the computer was off it
    would not startup after a power loss.

    BTW - why are you using the switch on the power supply ?


    "Greg Magnusson" <eqcroft@optonline.dont.spam.me.net> wrote in message
    news:bjc131pbjov15e1o8ems00d08r43j0h479@4ax.com...
    > I'm building two PCs with the same exact hardware, using pretested
    > mobo/cpu/ram bundles (the mobo is an Asus A8V). The issue is, the PC
    > powers up when the power supply master switch is turned on (not the
    > front panel power switch), which I believe isn't supposed to happen.
    > I've tried both mobos and the problem persists with both. Even with
    > no jumpers connected to the case, the PC powers on. It's an Antec
    > case with a Smartpower 350 watt power supply.
    >
    > I'm assuming the issue is a silly error on my part, but would anyone
    > know where to look first?
  2. Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

    Greg Magnusson wrote:
    > I'm building two PCs with the same exact hardware, using pretested
    > mobo/cpu/ram bundles (the mobo is an Asus A8V). The issue is, the PC
    > powers up when the power supply master switch is turned on (not the
    > front panel power switch), which I believe isn't supposed to happen.
    > I've tried both mobos and the problem persists with both. Even with
    > no jumpers connected to the case, the PC powers on. It's an Antec
    > case with a Smartpower 350 watt power supply.
    >
    > I'm assuming the issue is a silly error on my part, but would anyone
    > know where to look first?

    Could be a BIOS setting... often the BIOS has a setting to fire up on
    power failure.

    Ben
    --
    A7N8X FAQ: www.ben.pope.name/a7n8x_faq.html
    Questions by email will likely be ignored, please use the newsgroups.
    I'm not just a number. To many, I'm known as a String...
  3. Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

    "Greg Magnusson" <eqcroft@optonline.dont.spam.me.net> wrote in message
    news:bjc131pbjov15e1o8ems00d08r43j0h479@4ax.com...
    > I'm building two PCs with the same exact hardware, using pretested
    > mobo/cpu/ram bundles (the mobo is an Asus A8V). The issue is, the PC
    > powers up when the power supply master switch is turned on (not the
    > front panel power switch), which I believe isn't supposed to happen.
    > I've tried both mobos and the problem persists with both. Even with
    > no jumpers connected to the case, the PC powers on. It's an Antec
    > case with a Smartpower 350 watt power supply.
    >
    > I'm assuming the issue is a silly error on my part, but would anyone
    > know where to look first?

    'Sounds like PSU - swap 'em.
    HTH
    --
    Rob
  4. Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

    On Thu, 10 Mar 2005 15:50:43 -0500, Greg Magnusson
    <eqcroft@optonline.dont.spam.me.net> wrote:

    >I'm building two PCs with the same exact hardware, using pretested
    >mobo/cpu/ram bundles (the mobo is an Asus A8V). The issue is, the PC
    >powers up when the power supply master switch is turned on (not the
    >front panel power switch), which I believe isn't supposed to happen.
    >I've tried both mobos and the problem persists with both. Even with
    >no jumpers connected to the case, the PC powers on. It's an Antec
    >case with a Smartpower 350 watt power supply.
    >
    > I'm assuming the issue is a silly error on my part, but would anyone
    >know where to look first?


    Thanks for the replies. I tried the tabletop test with the two Antec
    power supplies (smartpower sl350) and got the same issue. However, I
    swapped out an Award 300w power supply from another case and it worked
    perfectly. Weird...
  5. Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

    I never set it to that value unless I have a UPS connected.

    The reason is that if there is a power failure, there can be several in
    quick succession. With the auto-restart (which is effectively what the
    setting is if the system was running) the system may be subjected to many
    restarts and will fail just like a light bulb sooner or later....

    This is getting a little off topic, so on topic: I would check the PSU's and
    BIOS settings as others have indicated and as you have already done, double
    check the front panel connectors work correctly and are in the right slots.

    - Tim


    "RonK" <Capt.Frenchfry @ hotdog.com> wrote in message
    news:P37Yd.26903$fW4.805368@news20.bellglobal.com...
    > There is a setting in bios under Power, Restore on AC power Loss. You
    > should change it to Last State.
    >
    > Example, With Last State selected. If the computer was on during a power
    > failure it would startup when the power returns. If the computer was off
    > it would not startup after a power loss.
    >
    > BTW - why are you using the switch on the power supply ?
    >
    >
    > "Greg Magnusson" <eqcroft@optonline.dont.spam.me.net> wrote in message
    > news:bjc131pbjov15e1o8ems00d08r43j0h479@4ax.com...
    >> I'm building two PCs with the same exact hardware, using pretested
    >> mobo/cpu/ram bundles (the mobo is an Asus A8V). The issue is, the PC
    >> powers up when the power supply master switch is turned on (not the
    >> front panel power switch), which I believe isn't supposed to happen.
    >> I've tried both mobos and the problem persists with both. Even with
    >> no jumpers connected to the case, the PC powers on. It's an Antec
    >> case with a Smartpower 350 watt power supply.
    >>
    >> I'm assuming the issue is a silly error on my part, but would anyone
    >> know where to look first?
    >
    >
  6. Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

    In article <7qg331hlipa5thhhcb51acjv3ovs2hras3@4ax.com>, Greg Magnusson
    <eqcroft@optonline.dont.spam.me.net> wrote:

    > On Thu, 10 Mar 2005 15:50:43 -0500, Greg Magnusson
    > <eqcroft@optonline.dont.spam.me.net> wrote:
    >
    > >I'm building two PCs with the same exact hardware, using pretested
    > >mobo/cpu/ram bundles (the mobo is an Asus A8V). The issue is, the PC
    > >powers up when the power supply master switch is turned on (not the
    > >front panel power switch), which I believe isn't supposed to happen.
    > >I've tried both mobos and the problem persists with both. Even with
    > >no jumpers connected to the case, the PC powers on. It's an Antec
    > >case with a Smartpower 350 watt power supply.
    > >
    > > I'm assuming the issue is a silly error on my part, but would anyone
    > >know where to look first?
    >
    >
    > Thanks for the replies. I tried the tabletop test with the two Antec
    > power supplies (smartpower sl350) and got the same issue. However, I
    > swapped out an Award 300w power supply from another case and it worked
    > perfectly. Weird...

    There have been problems before with Antec power supplies and
    Asus motherboards starting. So, this isn't a complete surprise.
    There was a P4P800 family board with a problem like that.
    The likely reason for the shutdown, is the Vcore regulator latching
    off, because the Antec power supply took too long starting up.

    Paul
  7. Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

    On Fri, 11 Mar 2005 11:15:23 -0500, Greg Magnusson wrote:

    > On Thu, 10 Mar 2005 15:50:43 -0500, Greg Magnusson
    > <eqcroft@optonline.dont.spam.me.net> wrote:
    >
    >>I'm building two PCs with the same exact hardware, using pretested
    >>mobo/cpu/ram bundles (the mobo is an Asus A8V). The issue is, the PC
    >>powers up when the power supply master switch is turned on (not the
    >>front panel power switch), which I believe isn't supposed to happen.
    >>I've tried both mobos and the problem persists with both. Even with
    >>no jumpers connected to the case, the PC powers on. It's an Antec
    >>case with a Smartpower 350 watt power supply.
    >>
    >> I'm assuming the issue is a silly error on my part, but would anyone
    >>know where to look first?
    >
    >
    > Thanks for the replies. I tried the tabletop test with the two Antec
    > power supplies (smartpower sl350) and got the same issue. However, I
    > swapped out an Award 300w power supply from another case and it worked
    > perfectly. Weird...

    That is really weird, since Antec supplies are supposed to be good
    supplies.
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