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Article #4

Re: Power controller chip to turn on ATX

#4
From: chuckcar
Date: Wed, 28 Oct 2009 22:00
33 lines
2345 bytes
Al <bigal.nz@gmail.com> wrote in
news:6346b7b5-100b-4b30-b545-e8135f3436e5@m3g2000pri.googlegroups.com: 

> 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.
> 
You *have* taken out all RAM and replace the CPU to test it right? If so,
either replace capacitors or chuck it. 


-- 
(setq (chuck nil)  car(chuck) )
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From: chuckcar <chuck@nil.car>
Newsgroups: alt.comp.hardware.pc-homebuilt,24hoursupport.helpdesk
Subject: Re: Power controller chip to turn on ATX
Date: Wed, 28 Oct 2009 22:00:00 +0000 (UTC)
Organization: A noiseless patient Spider
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Message-ID: <Xns9CB29622CFBECchucknilcar@127.0.0.1>
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