P4B266 Not Switching on.

  • Thread starter Thread starter Dave Catchpole
  • Start date Start date
D

Dave Catchpole

Just tried swithching this on having just finshed puting it together, but it
won't power up, I've checked all connections and now I'm not sure whats
going on!

There is a green LED lit between 2 PCI slots, but I'm cert
 
Just tried swithching this on having just finshed puting it together, but it
won't power up, I've checked all connections and now I'm not sure whats
going on!

There is a green LED lit between 2 PCI slots, but I'm certain this is a good
thing just indicating power is applyed to the board, checked with a spare
psu
anyway which does work in another machine, but has same reults with this
board.

The red LED near the memory is not lit, so theres no conflict there, no beep
codes either, just doesn't power up.

Many thanks in advance

Dave
 
Just tried swithching this on having just finshed puting it together, but it
won't power up, I've checked all connections and now I'm not sure whats
going on!

There is a green LED lit between 2 PCI slots, but I'm certain this is a good
thing just indicating power is applyed to the board, checked with a spare
psu
anyway which does work in another machine, but has same reults with this
board.

The red LED near the memory is not lit, so theres no conflict there, no beep
codes either, just doesn't power up.

Many thanks in advance

Dave
Click to expand...

Number of things could be wrong.
1. You could have a bum front panel power switch or connection. Try
using a small screw driver tip to short out the front panel power
switch connection on the motherboard.
2. Motherboard could be bad or in a funky state. Clearing CMOS solved
this problem on a mobo once.
3. Related to mobo in a funky state, you can try to start the machine
by shorting the proper contacts directly on the power supply start-up
lines at the mobo connector. I've had this kick a mobo into
sensibility once. Best to know what you are doing when attempting this
technique.

Mark
 
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