Original xbox power issues

It sounds like there's a problem with the internal power supply built into the console. If it fails to boot it's probably not POSTing right which could be the reason why it seems like it starts up but doesn't fully turn on.

Hi there,

We appreciate you reaching out to us with this issue. We remind users to plug their consoles directly into wall outlets and never into a surge protector or power strip as this can damage the console. We recommend starting a
repair for this issue.

Hello Dear User

Welcome to the Microsoft Community.

I understand that you are having trouble on original Xbox, and I understand your confusion.

It sounds like your original Xbox is experiencing a power supply issue or possibly a faulty power button. There are a few common causes for this kind of problem, and you can troubleshoot to narrow it down.

Check the Power Supply

The most common reason for an Xbox not powering on properly is a faulty or dying power supply.

• Inspect the power brick: If you have an original Xbox (not the Xbox 360), check the power supply brick for any signs of overheating, damage, or discoloration.
  

• Power brick LED: Check the LED on the power brick. If it's orange or red, it indicates an issue with the power supply itself. If it's off, the power supply may be dead. If it's green, the power supply is likely working fine.
  

• Orange LED: The brick could be faulty, and replacing the power supply may solve the problem.
  

• No LED at all: Try plugging it into a different outlet or try using a different power cable.
  

• Test with a known good power supply: If possible, borrow another power supply from a working Xbox and test it to see if the console powers on.
  

Check the Power Button

Sometimes the power button on the Xbox can become unresponsive or stuck, preventing the system from booting properly.

• Press and hold the power button for a few seconds, but if it's not registering, it could be malfunctioning.
  

• Try using the reset button (if it has one) or an alternate way to turn on the Xbox (like using a controller if you’re on a newer model).
  

Capacitors Issue

The original Xbox consoles are quite old, and sometimes capacitors inside the system can degrade, causing power issues.

• Power capacitor failure: This would cause the system to try to turn on, but not supply the necessary power for it to fully boot.
  

• Fix: This would require opening up the console and checking for swollen or damaged capacitors. You might need to replace the capacitors if you're comfortable with console repair.
  

Internal Hardware Issues

• Loose connections: There could be a loose connection inside the Xbox, possibly between the motherboard and the power supply.
  

• Motherboard or component failure: If the system tries to start but fails, it could indicate an issue with the motherboard or another internal component, like the GPU or CPU.
  

• Overheating: If the console has been running too hot recently, overheating could have damaged internal components, leading to power issues.
  

Disconnect Peripherals

• Sometimes external peripherals (controllers, memory cards, etc.) can cause power issues.
  

• Disconnect all USB devices and memory cards from the Xbox, and try turning it on again with just the power supply connected.
  

Try a Different Outlet

• Power issues could be caused by a faulty power outlet. Try plugging the Xbox into a different electrical outlet or even a different room to rule out outlet issues.
  

If the above does not work, then you will need to contact Xbox Support for further assistance: Contact us | Xbox Support

Please feel free to let me know if you have any further updates, thanks. 

Best Regards.

Lee-MSFT | Microsoft Community Support Specialist

Basically a possible "Quick Fix" is to open up the "Brick" of the power supply (While unplugged) and clean it.

I did this when i had a similar issue.. Hope this helped.

Please do not open the power supply, even if unplugged, as there may still be residual current in the capacitors. You can buy cheaply used XBOX on ebay or Amazon and simply exchange the net. Be sure to check your Revision of your XBOX 360 to get the right
power supply