Some motherboard diodes get hot enough to de-solder themselves if the
case isn't properly cooled.  Happened to me a few times with a
particular motherboard design.

-Adam

Denny Esterline wrote:

>Interesting, when my ABIT KT7A-RAID blew up (13 JPCON 2200uF 6.3V leaking
>caps) I found two of the power diodes (presumably in the proccessor core
>voltage regulator circuit) to be soldered incorrectly and not making
>contact with the pads. I just assumed that caused the caps to burst. Maybe
>they weren't related?
>
>I just replaced the whole MB, I keep it on a shelf to remind me that paying
>more doesn't neccesarily mean you get better product.
>
>-Denny
>
>
>
>
>>I had a similar problem, 5 burst caps on an MSI motherboard also. This
>>
>>
>time
>
>
>>2700uF, 6.3v types. I ordered replacements at $4 (AUD) apiece from
>>
>>
>farnell
>
>
>>and the PC has been rock solid stable ever since.
>>
>>
>>
>>>At 09:35 AM 2/17/2004 +0800, you wrote:
>>>
>>>
>>>>Hi there,
>>>>
>>>>     I have just opened my casing and found leaking caps on my mobo.
>>>>
>>>>
>So
>
>
>>>>it is time
>>>>for me to look for quality capacitors like Nichicon or Nippon for my
>>>>mobo. Do you know
>>>>where I can get quality caps in *Malaysia* or nearby countries? FYI,
>>>>
>>>>
>my
>
>
>>>>mobo is from MSI.
>>>>The chipset is 815 PT........ I blame the caps!
>>>>
>>>>
>>>Can't help you with Malaysian sources (there must be some hobby shops
>>>in KL? ) but this is no doubt a result of the infamous counterfeit
>>>electrolyte scandal.. the formula for electrolytic cap electrolyte was
>>>stolen and copied, but the formula didn't include some vital additives-
>>>ones that in low-Z caps stabilize them. You can get replacements from
>>>Digikey in the US.
>>>
>>>Actually, I'm just about to order 10 pieces for a Soyo motherboard
>>>that blew up (2 of them burst- "Wendell" brand) 1000uF/6.3V. If you
>>>want to send me some $ to cover the cost I'll order some extras and
>>>throw them in the mail to you.
>>>
>>>http://ca.digikey.com/scripts/DkSearch/dksus.dll?KeywordSearch
>>>
>>>Panasonic 1000uF/6.3V
>>>
>>>Best regards,
>>>
>>>Spehro Pefhany --"it's the network..."            "The Journey is the
>>>reward"
>>>speff@interlog.com             Info for manufacturers:
>>>http://www.trexon.com
>>>Embedded software/hardware/analog  Info for designers:
>>>http://www.speff.com
>>>
>>>
>>>
>
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