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Tower wont power up with blinking green light in back

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The blinking green light could be the network connection. They will show power even if the computer's not running, as long as the power cable is connected. There are on/off switches on some power supplies on the back of the computer, so check and make sure it's on. Does the fan on the power supply come on? If not, your power supply has probably failed. If it's over 2 years old, there's a good chance it could die. Additional cards and (USB) devices can draw too much power and wear out the power supply. Some power supplies come with fuses, but they are usually soldered to the circuit board inside the power supply case. Make sure you let your computer have plenty of air since heat can ruin it as well. If your power supply fan does spin up, then there could be a lot of different things wrong, and they could be expensive to fix. It could cost $50 to $100 for a repair shop to give you a better answer.

Posted on Dec 22, 2008

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