cheers my motherboard is down

Pin standby all time on 3,3v? My board too no power.

Mine has stand by and it cuts off when the fan starts would that be the power supply

@SuperDavidcass

3 жыл бұрын

Normally that's the Apu chip gone which is common fault bga solder balls I'm afraid

Mine when I plug in the AC cord the red light on the switch doesn't appear I don't know why.

@SuperDavidcass

2 жыл бұрын

Idd say the 5volt rails missing

The way the system works is 5 volts is a standby power that keeps the red light on the power button when you hit the power bouton that sends a signal back to the power supply to fire up the 12 volts that powers the system. If you have no red light that usually means it could be power supply or motherboard. I know from experience if you have a red light and the system powers up then shuts off right away that’s something wrong with the motherboard not the power supply.

@SuperDavidcass

Жыл бұрын

Yes, correct, I'm a fully qualified TV technician,

@SuperDavidcass

Жыл бұрын

Watch my video on the original xbox power supply rebuild Thks Dave

what have you done?

@SuperDavidcass

Жыл бұрын

I thought it was straight forward, using the wrong ps3 power supply to test if power supply or mainboard is the problem

@iwansukatno249

Жыл бұрын

usually IC dda001ag is broken