Unless the ASUS site is horribly incorrect, it appears that only the Xeon E3-1281 V3 is supported on this board.
Both the xeon and your processor support the 1150 socket:
I was checking that site to see what bios version was required for your processor.
If the ASUS site is correct regarding processor support, then I would not be surprised to find your system unstable.
Hard to say. You said the temperatures are quite low.
I would go back to the basics. Unplug everything you do not absolutely need. Use one dimm and test it in each socket. Remove the video card. Use only one disk drive. Etc, etc, etc.
I would also try a different power supply (different manufacturer, higher wattage) and see what the results are.
Unless you have access to the xeon or another i5-4460, you would need to verify with ASUS the cpu support, and the bios needed for that CPU.
I am still concerned about the supported CPUs page from ASUS.
I got in touch with ASUS and they have informed me that the board does support my processor. I have also tried to go to basics and run simply with just one drive, no GPU, and one stick of ram. The problem still continued when running any stress test. I have also tested the one stick of ram in each slot and still continued. I am currently going to try a different power supply and see if the problem continues. I am starting to point fingers at the power supply now and might invest in a higher grade PSU and a different brand as well.
This message was posted on behalf of Intel Corporation
I just wanted to confirm that the board does support the processor, as you can confirm on the following link:
So, a BIOS update to the latest version is a good thing to try in this case, the latest BIOS version is 2801:
At this point besides using a different power supply, you already tried all the troubleshot steps that we recommend, the next thing to do will be to swap parts.
To use the processor on a different board, or to use your board with a different processor will be the next thing to try, since you mentioned you do not have the option to do that, maybe there is a PC repair store close to you where they might be able to do that for you, at this point the problem could be related to the board or processor.
The processor has 3 years of warranty, and we can always replace it for you, most of the times this problem is related to the board, and since the processor passed the test of the IPDT that will indicate the problem could be the board.
If you are interested in the replacement, please get in contact directly with us through chat, email, phone or online support, you just need to select processor on product type and you will get those options:
Any questions, please let me know.