Having problems with your Gateway 503GR PC Desktop ?

Gateway 503gr has no power, the standby light flashes green when I remove power. Tried new PS and the standby LED stays lit. I then tried both new and old PS disconnected from board and shorted green/black wires. All drives powered up. I replaced the motherboard and tried my old PS and then the new one and it still does not power. Shorted green and black wires and got HDD and fans to turn on and HDD LED, no CD drive, still no LED on Power switch. Trying to figure out if new MB got fried wh


Answers :

Disconnect everything from the motherboard except the power supply connections and cpu fan. Install one stick of RAM and connect your monitor. Then try starting up. See if you get any BIOS boot messages. This will tell you that the board and processor are okay.

With what you say you've tried already, I'm thinking you might have a bad processor. Most every other problem would result in some kind of error like POST beep codes or messages on screen. If the system still doesn't boot with the bare minimum parts installed, replace the processor.
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Gateway 503gr has no power, the standby light flashes green when I remove power. Tried new PS and the standby LED stays lit. I then tried both new and old PS disconnected from board and shorted green/black wires. All drives powered up. I replaced the motherboard and tried my old PS and then the new one and it still does not power. Shorted green and black wires and got HDD and fans to turn on and HDD LED, no CD drive, still no LED on Power switch. Trying to figure out if new MB got fried wh


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