Guest
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Posted:
Thu Nov 10, 2005 4:31 pm Post subject:
Re: New Power Supply but no power |
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Zentraleinheit@copper.net (REMOVE) wrote:
| Quote: | Well, I tired what was surgested:
...disconnect AC, clear the motherboard CMOS, then reconnect AC
and retry the front case switch.
And when that did not work:
Connect only the following: CPU, CPU heatsink/fan, 1 memory module, video
Clear CMOS Turn on the motherboard by shorting the two power-on pins
(on the motherboard front panel header, where the switch plug goes) together
Still nothing!
So I started looking for fouled electrical contacts, burst capacitors, fan
failure on CPU heatsink.
I think I found something!
Three of the capacitors next to where the memory slots are have instead of
a flat shinny top have instead a slight bulging top with small brown
discoloration.
(I wish there was a way to post the pictures I made of them so you can see
what I was talking about)
So, if this is the (in this case) the "smoking capacitor" then my
motherboard has met its demise ;-(
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George Macdonald once wrote
"Check the electrolytic capacitors on the mbrd for swelling tops or
leakage
near the base. There was a slew of mbrds a couple of years ago which
had
bad caps: http://www.niccomp.com/taiwanlowesr.htm. For examples:
http://www.badcaps.net/ & http://www.motherboardrepair.com/. "
those links have pictures and discussions.
just get a new mbrd, return that one. |
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