[ale] OT - hardware problem

[Calvin Harrigan]

Could it be the fan?  It might be spinning, but not sending any feedback 
to the MB and the MB thinks the fan is kaput.  This feature is usually 
only available on higher end boards though.  Most usually depend on 
temperature.  Just an idea.  What year was the board manufactured? 
Could you be suffering from bad capacitors?  Most if not all 
motherboards have a low voltage high current powersupply for the 
CPU,Memory on board, the capacitors there could be at fault.  Look for 
capacitors whose tops seem puffy or have stains, leaks, etc.  Most are 
relatively easy to replace if you have any experience with a soldering iron.


On 10/11/2010 1:13 PM, Joe Knapka wrote:
> I've already replaced the PS with a new-in-box one, with no change in
> behavior.  So I don't think that's it.
>
> It's a socket 939 mobo; those seem to be hard to get these days. Looks
> like at least mobo and CPU, and probably RAM, will need to be
> replaced.
>
> Bleh.
>
> -- JK
>
> On Mon, Oct 11, 2010 at 9:25 AM, Scott Castaline<skotchman at gmail.com>  wrote:
>>   On 10/11/2010 10:43 AM, Joe Knapka wrote:
>>> On Mon, Oct 11, 2010 at 7:38 AM, Jim Kinney<jim.kinney at gmail.com>    wrote:
>>>> true. easy test for that is to boot to the bios and leave it alone. There's
>>>> no throttling in the bios for cpu speed AND you can run the temp page and
>>>> watch for issues there.
>>>
>>> I was going to try this, but this morning the machine won't turn on at
>>> all.  That is, press power button, fans spin up for about 1 second,
>>> then immediately everything turns off.  Pulled the power switch off
>>> the mobo and used a screwdriver between the pins to power up, and got
>>> the same behavior.  Pulled the RAM, same behavior.  Wish I had an
>>> alternate CPU to test.  Anyway I guess swapping out the mobo is the
>>> next move.
>>>
>>> Thanks all,
>>>
>>> -- JK
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>> If memory serves me correctly, you need a resistive load across the
>> voltage outputs, otherwise the PSU will behave like that. They do make
>> test plugs or at least used to for PSUs that provide the load needed to
>> turn on. If it does the same thing with the plug then it's the PSU. Also
>> I think that HDDs do provide enough load to trigger the PSU to stay on.
>> Did you have any hdds, optical drives still plugged in? It's possible
>> that one of them is dragging down the PSU.
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>>
>
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