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Guest
Guest
The power on momentary switch is connected to the motherboard. What does the signal go through to finally connect the to the ATX pwr_on line to fire up the power supply. Evidently, there is some other logic between the power on button and the ATX.
My problem is: If I clear the cmos and jumper the pwr on line to ground, then the system fires up, loads windows XP and all is fine. The power switch is good and connected to the motherboard correctly. I then remove the jumper to shut down the PC, then I removed the power cord.
After removing the jumper, I inserted the power cord. The front panel switch activates but nothing happens. The processor and system fans are not running. No action and system is just dead.
Brand new mother board. ATX power supply checked out under load OK.
Any Ideas?
My problem is: If I clear the cmos and jumper the pwr on line to ground, then the system fires up, loads windows XP and all is fine. The power switch is good and connected to the motherboard correctly. I then remove the jumper to shut down the PC, then I removed the power cord.
After removing the jumper, I inserted the power cord. The front panel switch activates but nothing happens. The processor and system fans are not running. No action and system is just dead.
Brand new mother board. ATX power supply checked out under load OK.
Any Ideas?