CPU post led goes solid red while playing games, have tried 2 CPUs, same problem.

[Blunticus]

My four and a half year old PC build has been black screening with a solid red CPU post led while gaming. It boots back fine after letting it sit off for a minute or so. I have had no change trying the following fixes.

-deep cleaning case and pulled all components/cables
-reapplied thermal paste on CPU and GPU
-a different CPU
-a different GPU
-a new CPU cooler
-ran one stick of memory at a time
-updating all drivers including motherboard
-checking windows 10 for updates and corrupt files
-clearing cmos and pulled mobo battery

My specs are-
Windows 10 64-bit
Thor V2 full atx tower
Asus Sabertooth 990fx R2.0 MOBO
AMD FX-6300 CPU
Cryorig H7 CPU cooler
Asus GTX 660 2gb GPU
8.00gb Ripjaws X dual channel DDR3 RAM
120gb Samsung SSD 840 pro series
1tb Seagate HDD

At this point I have a feeling it's the motherboard going bad as I've been seeing many threads about similar red led post lights for the Sabertooth series. Anyone have any ideas? Thanks in advance!

original thread- http://www.tomshardware.com/answers/id-3740813/cpu-red-led-woes.html

 

[maxalge]

My four and a half year old PC build has been black screening with a solid red CPU post led while gaming. It boots back fine after letting it sit off for a minute or so. I have had no change trying the following fixes.

-deep cleaning case and pulled all components/cables
-reapplied thermal paste on CPU and GPU
-a different CPU
-a different GPU
-ran one stick of memory at a time
- updating all drivers including motherboard
- checking windows 10 for updates and corrupt files
- clearing cmos and pulled mobo battery

My specs are-
Windows 10 64-bit
Thor V2 full atx tower
Asus Sabertooth 990fx R2.0 MOBO
AMD FX-6300 CPU
Asus GTX 660 2gb GPU
8.00gb Ripjaws X dual channel DDR3 RAM
120gb Samsung SSD 840 pro series
1tb Seagate HDD

At this point I have a feeling it's the motherboard going bad as I've been seeing many threads about similar red led post lights for the Sabertooth series. Anyone have any ideas? Thanks in advance!

original thread- http://www.tomshardware.com/answers/id-3740813/cpu-red-led-woes.html

make and model of the power supply?

also your temps are too high, those amd cpu's start to throttle at ~60 degrees

 

[Blunticus]

my cpu doesn't go above 60, usually staying 30-45 degrees and gpu is around 62-64 degrees when taxed.

power supply is a xfx xtr 650w.

 

[Blunticus]

I've installed a new CPU cooler and still having the same problem. Not sure what else to try as far as troubleshooting goes.

 

[smorizio]

make sure the mb has updated bios. if it not mb vrm/cap issue. try keeping the side open and use a small fan see if the vrm are running hot. use hardware info see if the 12v rail is holding or dropping. use a test power supply see if your rig holds under gaming.