Melting Connector

  • Thread starter Thread starter TVeblen
  • Start date Start date
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TVeblen

What could cause the 4-pin processor power connector on a motherboard to
melt and deform?
 
TVeblen said:
What could cause the 4-pin processor power connector on a motherboard to
melt and deform?
Click to expand...
A bad connection, which produces heat on a component unable
to get rid of the heat fast enough.
Result: baked connector.
Solution:new connector on cable and motherboard.
 
TVeblen said:
What could cause the 4-pin processor power connector on a motherboard to
melt and deform?
Click to expand...

Are you careful to mate the latches on the power connector(s) ?

The connectors can "thermal walk-out" from the motherboard. As the
connector gets warm, it expands a bit. Over hundreds of power cycles,
power connectors can gradually work themselves out of the socket.
The latch on the 2x2 and main power connectors, is intended to snap
together, to keep the contacts fully engaged, and prevent walkout.
Once the connector walks out, the badly made connection arcs and
heats up, damaging the pins.

It could also be a problem with the Vcore circuit itself, or even
a partial short on the CPU side of the circuit. That could cause
an abnormal level of current flow on the 12V.

Even extreme overclocking, could burn the pins. An example would be
a D 805 overclocked to 4GHz, which draws well over 200 watts.

Paul
 
Are you careful to mate the latches on the power connector(s) ?

The connectors can "thermal walk-out" from the motherboard. As the
connector gets warm, it expands a bit. Over hundreds of power cycles,
power connectors can gradually work themselves out of the socket.
The latch on the 2x2 and main power connectors, is intended to snap
together, to keep the contacts fully engaged, and prevent walkout.
Once the connector walks out, the badly made connection arcs and
heats up, damaging the pins.

It could also be a problem with the Vcore circuit itself, or even
a partial short on the CPU side of the circuit. That could cause
an abnormal level of current flow on the 12V.

Even extreme overclocking, could burn the pins. An example would be
a D 805 overclocked to 4GHz, which draws well over 200 watts.

Paul
Click to expand...

Thank you gentlemen. I am dealing with the issue on someone else's
computer remotely, so I haven't seen what it actually looks like. I
suspected a poor connection or motherboard short but wanted to confirm
my suspicions before I say anything to him. His initial complaint was
that the computer was shutting down unexpectedly and randomly. He is
convinced he needs a new power supply. The poor connection certainly
explains his symptom, but the melting connectors is definitely not a
good sign.
 
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