The classic 3 red lights issue

Three flashing red lights around the Xbox 360 power button (nicknamed the "Red Ring of Death" or "Red Lights of Death" or "Red Ring of Doom"), instead of the one to four green lights indicating normal operation, represent an internal problem that requires service. Warning signs may include freeze-ups, graphical problems in the middle of gameplay, such as checkerboard or pinstripe patterns on the screen, and sound errors, and the console only responds to pressing the power button to turn it off. These events may happen once or several times until the hardware failure occurs, or not at all. If the console freezes occasionally, the error will not necessarily follow. The technical problems seem to affect some generations of consoles more than others. e.g. Xbox 360 60GB This error code is usually caused by failure of one or more hardware components, although it can indicate that the console is not receiving enough power from the power supply, which can either be due to a faulty power supply or if the power supply cable is not fully inserted into the console. The 3 flashing lights can also be caused by power surges; if the console is connected to an outlet that receives a power surge, it may have a failure and the 3 lights will appear as long as the console is plugged into the outlet. Turning off the console, unplugging all power cables and plugging them back in, and restarting the console will fix the issue in this case. hope this helps

at the very least the main board is acting flaky with the 3 red lights flashing. Here is tutorial courtesy of LLAMA to show how to resolve that problem:

http://www.llamma.com/xbox360/repair/ring_of_light_x-clamp_fix.htm

As far as the yellow light on the power supply is concerned. Unhook it from the Xbox 360 and only plug it into a power outlet. If the light is yellow then the power supply is bad. If the light stays green then plug it into the xbox 360, if it tells yellow then, at that point you know that the main board is causing the yellow light on the power supply and that means the main board is bad.

hello.
CAUSE The three flashing red lights may indicate that your Xbox 360 console has experienced a hardware failure. Please read the letter that discusses warranty changes for three flashing red light hardware failures. 

MORE INFORMATION 

If you suspect that you are experiencing this issue, you can submit a console-repair request online. However, before you submit your request, we ask that you first try the following two steps to verify that you are indeed experiencing this issue: 

1. When you turn on the console, examine the light on the power supply. The power supply light should illuminate green even if the three lights on the Ring of Light flash red. If the power supply light is not green, please follow the steps that are listed in the following Microsoft Knowledge Base articles: 

906101 Xbox 360: The power supply light is red 906102 Xbox 360: The power supply light is orange 906103 Xbox 360: The power supply light is not illuminated 

2. Turn off the console. Wait 10 seconds, and then turn on the console again to see whether the symptom occurs again. If your console continues to display the three flashing red lights, your console may have to be repaired. For information about how to start the repair process online, please visit http://www.xbox.com/support, and then click Console Repair in the upper-right section of the Web page. 

Note: The online console repair service is currently not available in all countries or regions. 

If you would rather contact Xbox Customer Support directly, please visit http://www.xbox.com/support/contact for information about how to do this. 

APPLIES TO 

* Microsoft XBox 360 Video Game System 
* Microsoft Xbox 360 Hard Drive (20 GB) 
* Microsoft Xbox

Follow this steps:

1. Turn off the xbox 360, disconnect the cables wait for 20 seconds reconnect the cables and turn it back on.

2. Check the light on the power supply ( The big brick that goes to your wall )
If the light is green that means the power supply is OK
If the light is Red that means the power supply needs to be replaced

3. If above steps doesn't work, you need to contact xbox customer support to get your xbox repaired
and shipping and handling will be covered.

Good Luck

Three of the lights on the Ring of Light on the front of your Xbox 360 console flash red View products that this article applies to. if (!loadTOCNode) {var loadTOCNode = function(){}} Expand all | Collapse all if (kb_page_object) { kb_page_object.kb_imageExpandHoverText = 'Click to expand this image'; } SYMPTOMS Three lights flash red on the Ring of Light (RoL) on the front of your Xbox 360... loadTOCNode(1, 'symptoms'); Three lights flash red on the Ring of Light (RoL) on the front of your Xbox 360 console. The upper-right quadrant light is the only light that does not flash red. Back to the top CAUSE The three flashing red lights may indicate that there is a hardware problem with... loadTOCNode(1, 'cause'); The three flashing red lights may indicate that there is a hardware problem with your Xbox 360 console. Back to the top MORE INFORMATION If you are experiencing this problem, you can submit a console-repair request on... loadTOCNode(1, 'moreinformation'); If you are experiencing this problem, you can submit a console-repair request online. However, before you submit your request, first try the following two steps to verify the problem:

1. When you turn on the console, look at the light on the power supply. The power supply light should illuminate green even if the three lights on the Ring of Light flash red. If the power supply light is not green, please follow the steps in one of the following Microsoft Knowledge Base articles: 906101 (http://support.microsoft.com/kb/906101/ ) Troubleshooting your Xbox 360 Power Supply when the light is red 906102 (http://support.microsoft.com/kb/906102/ ) Troubleshooting your Xbox 360 Power Supply when the light is orange 906103 (http://support.microsoft.com/kb/906103/ ) Troubleshooting your Xbox 360 Power Supply when the light is not illuminated
2. Turn off the console. Wait 10 seconds, and then turn on the console again to see whether the problem re-occurs.

If your console continues to display three flashing red lights, your console may have to be repaired. For more information about how to start the repair process online, please visit http://www.xbox.com/support (http://www.xbox.com/support) , and then click Repair your console in the upper-right part of the Web page. Note Online console repair service is currently not available in all countries and regions.If you want to instead contact Xbox Customer Support directly, please visit http://www.xbox.com/support/contact (http://www.xbox.com/support/contact) for information about how to do this.

When you turn on the console, look at the light on the power supply. The power supply light should illuminate green even if the three lights on the Ring of Light flash red. If the power supply is button is red than you need to replace the battery or check the connections.

The three flashing red lights may indicate that there is a hardware problem with your Xbox 360 console. If you are experiencing this problem, you can submit a console-repair request online.

Hopefully your system is still under warranty.

For step by step troubleshooting directions please read the attached link and Happy Gaming!
http://support.microsoft.com/kb/907534

Three lights flash red on the Ring of Light (RoL) on the front of your Xbox 360 console. The upper-right quadrant light is the only light that does not flash red. CAUSE: The three flashing red lights may indicate that there is a hardware problem with your Xbox 360 console. MORE INFORMATION: If you are experiencing this problem, you can submit a console-repair request online. However, before you submit your request, first try the following two steps to verify the problem: 1. When you turn on the console, look at the light on the power supply. The power supply light should illuminate green even if the three lights on the Ring of Light flash red. If the power supply light is not green, please follow the steps in one of the following Microsoft Knowledge Base articles: 906101 (http://support.microsoft.com/kb/906101/) Troubleshooting your Xbox 360 Power Supply when the light is red 906102 (http://support.microsoft.com/kb/906102/) Troubleshooting your Xbox 360 Power Supply when the light is orange 906103 (http://support.microsoft.com/kb/906103/) Troubleshooting your Xbox 360 Power Supply when the light is not illuminated 2. Turn off the console. Wait 10 seconds, and then turn on the console again to see whether the problem re-occurs.If your console continues to display three flashing red lights, your console may have to be repaired. If none of these help, pease contact Xbox support at http://xbox.agent.asahost.com/ to talk to a live agent.
:)

Wow, 4th? That's horrible! Hopefully the following helps you out! SYMPTOMS loadTOCNode(1, 'symptoms'); Three lights flash red on the Ring of Light (RoL) on the front of your Xbox 360 console. The upper-right quadrant light is the only light that does not flash red. CAUSE loadTOCNode(1, 'cause'); The three flashing red lights may indicate that there is a hardware problem with your Xbox 360 console. MORE INFORMATION loadTOCNode(1, 'moreinformation'); If you are experiencing this problem, you can submit a console-repair request online. However, before you submit your request, first try the following two steps to verify the problem: 1. When you turn on the console, look at the light on the power supply. The power supply light should illuminate green even if the three lights on the Ring of Light flash red. If the power supply light is not green, please follow the steps in one of the following Microsoft Knowledge Base articles: 906101 (http://support.microsoft.com/kb/906101/) Troubleshooting your Xbox 360 Power Supply when the light is red 906102 (http://support.microsoft.com/kb/906102/) Troubleshooting your Xbox 360 Power Supply when the light is orange 906103 (http://support.microsoft.com/kb/906103/) Troubleshooting your Xbox 360 Power Supply when the light is not illuminated 2. Turn off the console. Wait 10 seconds, and then turn on the console again to see whether the problem re-occurs.If your console continues to display three flashing red lights, your console may have to be repaired. If none of these help, pease contact Xbox support at http://xbox.agent.asahost.com/ to talk to a live agent.
:)

SYMPTOMS loadTOCNode(1, 'symptoms'); Three lights flash red on the Ring of Light (RoL) on the front of your Xbox 360 console. The upper-right quadrant light is the only light that does not flash red. Back to the top
CAUSE loadTOCNode(1, 'cause'); The three flashing red lights may indicate that there is a hardware problem with your Xbox 360 console. Back to the top
MORE INFORMATION loadTOCNode(1, 'moreinformation'); If you are experiencing this problem, you can submit a console-repair request online. However, before you submit your request, first try the following two steps to verify the problem: 1. When you turn on the console, look at the light on the power supply. The power supply light should illuminate green even if the three lights on the Ring of Light flash red. If the power supply light is not green, please follow the steps in one of the following Microsoft Knowledge Base articles: 906101 (http://support.microsoft.com/kb/906101/) Troubleshooting your Xbox 360 Power Supply when the light is red 906102 (http://support.microsoft.com/kb/906102/) Troubleshooting your Xbox 360 Power Supply when the light is orange 906103 (http://support.microsoft.com/kb/906103/) Troubleshooting your Xbox 360 Power Supply when the light is not illuminated 2. Turn off the console. Wait 10 seconds, and then turn on the console again to see whether the problem re-occurs.If your console continues to display three flashing red lights, your console may have to be repaired. If none of these help, pease contact Xbox support at http://xbox.agent.asahost.com/ to talk to a live agent.

Hello there.

Please click http://support.microsoft.com/kb/907534 to see about this problem.

As per the page:

If you suspect that you are experiencing this issue, you can submit a console-repair request online. However, before you submit your request, we ask that you first try the following two steps to verify that you are indeed experiencing this issue: 1. When you turn on the console, examine the light on the power supply. The power supply light should illuminate green even if the three lights on the Ring of Light flash red. If the power supply light is not green, please follow the steps that are listed in the following Microsoft Knowledge Base articles: 906101 (http://support.microsoft.com/kb/906101/) Xbox 360: The power supply light is red 906102 (http://support.microsoft.com/kb/906102/) Xbox 360: The power supply light is orange 906103 (http://support.microsoft.com/kb/906103/) Xbox 360: The power supply light is not illuminated 2. Turn off the console. Wait 10 seconds, and then turn on the console again to see whether the symptom occurs again.If your console continues to display the three flashing red lights, your console may have to be repaired. For information about how to start the repair process online, please visit http://www.xbox.com/support (http://www.xbox.com/support), and then click Console Repair? in the upper-right section of the Web page.

Hope this helps.