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replaced m/b

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3 replies

by cyn

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I replaced a motherboard, upon reconnecting power, unit came one and switch does not turn off/on. I have checked for shorts, I have taken it down to only ram, I have tried different power supply's, and I get no video and no beeps.

3 replies

by captbilly1eye

Based on your described symptoms...
Is there a P4 CPU connector involved? If so, make sure that power connector is solid.
Also, check with manufacturer schematics for the MoBo to make sure your power connections to the power switch and LEDs are correct and the ground is valid.

If it was a compatibility or connection issue with RAM or CPU, you would most likely be getting beeps at post but it sounds as if it's not getting even that far.
A bad board is not an impossibility.
It's difficult to diagnose an issue like yours without proper testing equipment or replacement parts to try a process of elimination. Your best bet, if you followed all the documentation is to take it to a place where such resources are available.

Good Luck.

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