[ale] Dead Motherboard?

[Omar Chanouha]

Yes, I am talking about the CMOS. I just ordered a new board.

Thanks,

-O

On Fri, Aug 7, 2009 at 12:55 PM, Greg Clifton<gccfof5 at gmail.com> wrote:
> >From your reply it is not clear if you are talking about the car battery or
> the motherboard battery. I am talking about the CMOS battery (usually a coin
> type 3V these days) on the motherboard. If you have cleared the CMOS and you
> still get nothing from the motherboard, pull the RAM and see if you get any
> beeps. If still nothing (and there is nothing else to unplug from the
> motherboard), time for a new motherboard. Next time, disable the DC supply
> to the M2 and wait a few minutes before attaching or detaching power from it
> to the motherboard. Also follow that proceedure for installing/removing any
> add in cards.
>
> On Fri, Aug 7, 2009 at 12:20 PM, Omar Chanouha <ofosho at gatech.edu> wrote:
>>
>> I am using an M2-atx. I am hooked the 12v from the battery to the M2+
>> and the I hooked the M2- to the frame of the car. The power supply was
>> meant for cars, so it should handle all spikes. I removed the battery
>> overnight, and nothing changed. The fan spins properly. The bench
>> power supply shows about .5 amp current drain.
>>
>> I also hooked the 12v ignition from the ford harness to the M2, as
>> well as the amp on.
>>
>> -O
>>
>> On Thu, Aug 6, 2009 at 11:36 PM, Greg Clifton<gccfof5 at gmail.com> wrote:
>> > Carputer? How are you powering the system, inverter to AC power supply
>> > or
>> > 12V DC supply? Maybe you had a power surge when you unplugged and zapped
>> > something. The CMOS can be VERY static sensitive, so that the BIOS can
>> > get
>> > mucked up without actually being destroyed. You have already stripped
>> > everything and tested with a known good power supply, so the problem has
>> > to
>> > be confined to the motherboard components or CPU or RAM, correct? Not
>> > likely
>> > that the CPU or RAM crapped just from a power cycle. Does your power
>> > supply
>> > turn on at all? Does the fan spin, just "twitch" or do nothing? Your USB
>> > drive is probably running off the 5V standby power which is always
>> > present
>> > when AC is fed to the power supply (perhaps you have noticed that you
>> > can
>> > charge USB devices w/o turning the 'puter on. But if you have a dead
>> > short
>> > crowbar shutdown of the power, you shouldn't have standby power either.
>> >
>> > I recommend you use the jumper setting to clear the BIOS or even better,
>> > remove the battery for an hour or so (with no power plugged to the
>> > motherboard). That should unscramble your BIOS and put it back in the
>> > default or failsafe state reviving your board.
>> >
>> > One final note, NEVER scrimp on the power supply. No truer saying about
>> > computers than GIGO, esp. with regards to the power input!
>> >
>> > Regards,
>> > Greg Clifton
>> >
>> > On Thu, Aug 6, 2009 at 10:11 PM, Omar Chanouha <ofosho at gatech.edu>
>> > wrote:
>> >>
>> >> I put a carputer together using an intel D945GCLF2D motherboard. I
>> >> installed it and everything worked. Then I unplugged it to the
>> >> faceplate on, but when I plugged it back in the screen wouldn't
>> >> display anything. So I took it to my bench, unplugged everything from
>> >> it, and hooked it to a reliable power supply. Again, nothing. I don't
>> >> get any BIOS beeps, nor any LED activity.  If peripherals are
>> >> attached, they do get power, i.e. the dvd tray opens, which is
>> >> connected via usb. It is so wierd b/c I didn't change anything that
>> >> would affect the mobo, nor did I reverse the polarity. Could it be
>> >> memory? I don't think so because the mobo guide says it gives
>> >> beeps/messages for memory erros. Is the mobo dead? Are there any
>> >> possible explanations as to why this happened, so I don't do it again?
>> >>
>> >> Thanks,
>> >>
>> >> -O
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