Find out whether it is really your motherboard that needs to be replaced or not.
A failing Asus M2N SLI motherboard requires a new motherboard replacement, which is an expensive part. You want to try make sure that this is the actual problem, before replacing it, but it is sometimes difficult to determine if it is the motherboard or some other part that is failing. Just because a computer doesn't turn on does not necessarily mean the motherboard is bad. There are other signs, such as non working ports, electrical burns or smells, and computer freezing which can also indicate a motherboard failure.
Instructions
No Power
1. Verify that the power cable is connected to the desktop. Press the connection in firmly at the back of the computer and in the power outlet. Many computers end up being mistakenly sent to the repair shop because of a bad power connection.
2. Power on the computer and watch for a live screen, listen for fans whirring and front LED lights. A live screen can be a black screen with your manufacturer's logo and prompt. If you don't get video, disconnect the monitor video cable from the computer and connect another old monitor to the computer to see if there is video. The computer monitor may be bad and need replacing if you get images with the old monitor. If you get a screen and prompt but the computer does not go into Windows, this is more of a hard drive issue and not a motherboard one.
3. Analyze how the power failure problem occurred. If the computer suddenly shut down for no apparent reason and just won't turn back on, then the issue may be with the power supply and not the motherboard. Turn on the computer and listen for the fan noise from the back of the computer. Look for power lights to come on. If you don't hear power sounds or see any LED lights then it is probably a power supply failure. Disconnect the computer from the power outlet and remove any cables from the back of the computer. Turn the computer around so the back is facing you. Put your nose up to the back fan of the power supply and determine whether there is a burnt electrical smell. This is an indication of a power supply failure and not an Asus motherboard failure.
4. Remove the screws from the back right cover and slide the cover toward you and off the computer. Lay the computer down so you can see the motherboard. Get close to the motherboard and smell for burnt circuits. Look for black burnt spots. This is an indication of a failed motherboard.
Blue Screens & Freezing
5. Turn off and disconnect the computer from the power source. Remove the right side panel from the computer as you did in Step 4 of Section 1.
6. Blow compressed air into the fans and on the motherboard in the computer. Reconnect and turn on the computer. Notice whether the blue screens take longer to appear. If the blue screens take longer to appear, your processor may be overheating which is caused by dirty fans. Change out the hot sink and fans for new ones.
7. Remove the RAM from the motherboard by pushing out the slot levers with the thumb and ring fingers. Pull the loose RAM out. Wipe it with a cloth dipped in rubbing alcohol. Replace only one module of RAM. Turn the computer on and work on it for a while. If the computer does not freeze then the problem is the RAM and not the motherboard.
Unrecognized Devices
8. Update the device drivers in computers that turn on but don't seem to be functioning properly. Especially when devices like mouse, keyboard, and CD/DVD drive are sometimes detected and sometimes not.
9. Go to the Asus website and download the drivers for your motherboard. Click twice on the icons you download to start the installation.
10. Restart the computer and connect the keyboard, mouse, and any USB device. Go to "Start," "My Computer" and check to see if the devices are recognized. Check to see if your keyboard and USB device are recognized.
11. Change devices that are not recognized to other ports. If the ports no longer recognize a certain device or do so intermittently this is an indication of a bad motherboard.
Tags: power supply, back computer, from back, Asus motherboard, blue screens, blue screens take