CPU EZ debug light on motherboard. No video output.

Nov 15, 2018
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I left my PC on sleep over night and woke this morning to the power light on my PC tower flashing on and off and the EZ debug CPU light lit up on my motherboard. I turned the PC off and tried to turn it on and the light on the motherboard was still lit up and there was still no output to the monitor and there was no POST. I've had this build for 4 years and it's been working smoothly up until today.

Any ideas?
 
Nov 15, 2018
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CPU - Intel I5.
Motherboard - MSI B150.
PSU - NEX650G
PC tower - Corsair 200R
GPU - 750TI
OS - Windows 8
 

Ralston18

Titan
Moderator
Check the motherboard manual to interpret what the EZ debug LED and flashing power light may mean.

Try another known working cable to monitor.

Try another monitor.

Try connecting motherboard video port to monitor.

Try booting into safe mode.
 
Nov 15, 2018
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I should probably have made it clear in the main post that there's no POST. The manual doesn't really give any troubleshooting advice about the debug light and every occurence of it that I've read online is from people with new builds who haven't assembled things properly which wouldn't be my situation as it has been working fine for the past 3-4 years.
 

Ralston18

Titan
Moderator
Here are some links with respect to the EZ-debug light(s):

https://forum-en.msi.com/index.php?topic=293661.0

https://forum-en.msi.com/index.php?topic=295688.0

Found this this link also:

https://www.manualslib.com/manual/1306045/Msi-B250m-Bazooka-Plus.html?page=35

Not your motherboard but may help decipher the LEDs.

With the computer being 3 - 4 years old then the CPU may be the problem.

However, there are other things that you can do:

Have you ever opened the case to clean and reseat all cables and components. Things do wiggle/vibrate/ expand and contract loose.

Install a new CMOS battery.

If you are not comfortable opening the case yourself find a knowledgeable family member or friend to help.




 

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