🚀 go-pugleaf

Al wrote:
> On Oct 27, 10:09 pm, Grinder <grin...@no.spam.maam.com> wrote:
>> Al wrote:
>>> Hi Guys,
>>> I have got a mobo here that is dead. I have done all the usual stuff
>>> like trying new PSU, bench testing etc. Its dead - as in no fans, no
>>> nothing when you hit PWR button - PSU doesnt even come on.
>>> I connected the ATX molex from the PSU and shorted Green (PWR ON) with
>>> GND on the molex and the PC came on. All seemed fine.
>>> I think there is a IC on the motherboard between the PWR BTN headers
>>> from the power on switch and the ATX header on the mobo that tells PSU
>>> to start up.
>>> I am trying to find this IC.
>>> I have attached a image of the mobo with some of the IC's that seem
>>> possible labelled.
>>> http://www.badcaps.net/forum/attachment.php?attachmentid=12082
>>> Interested to know if anyone knows which IC controls the PSU and tells
>>> it to turn on? Someone else suggested this function was handled on the
>>> CPU since P4, but I am not sure about that.
>> If you short the power button pins on the motherboard's front panel
>> header, will it start up?
>>
>> I'm sorry I can't be more specific about where those pins are as I don't
>> know what motherboard you have.  (I don't have a badcaps.net login.)  If
>> you identify the motherboard, I can give you a more specific answer.
> 
> Yep good suggestion and yes I have done that.

Did the PC startup?  I guess it must not have if you still consider the 
motherboard to have a problem.

If there is a chip that is bad, as you've suggested, it's unlikely that 
you'll be able to affect a repair.  Since you've tried another power 
supply already, it's getting near to the point where you have to cut 
your losses.